Form 424B5 - Prospectus [Rule 424(b)(5)]

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The information in this Preliminary Prospectus Supplement and the accompanying Prospectus is not complete and may be changed. This Preliminary Prospectus Supplement and the accompanying Prospectus are not an offer to sell these securities nor do they solicit an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

Filed Pursuant to Rule 424(b)(5)

Registration No. 333-279132

Subject to completion, dated May 8, 2024.

Preliminary Prospectus Supplement
(To Prospectus dated May 6, 2024)

ATLASSIAN CORPORATION

$ % Senior Notes due 20

We are offering $ aggregate principal amount of our % senior notes due 20 (the “20 notes”) and $ of our % senior notes due 20 (the “20 notes” and, collectively with the 20 notes, the “notes”). We will pay interest on the notes semi-annually in arrears on and of each year, beginning on , 20 . The notes will mature on , 20 and , 20 respectively. Interest on the 20 notes will accrue at a rate of % per annum. Interest on the 20 notes will accrue at a rate of % per annum.

We may, at our option, redeem either series of the notes, in whole or in part, at any time or from time to time at the applicable redemption price described under “Description of Notes—Optional Redemption.” Upon the occurrence of a Change of Control Triggering Event (as defined herein), we will be required to make an offer to repurchase all outstanding notes from their holders at a price equal to 101% of their principal amount thereof, plus accrued and unpaid interest to, but not including, the date of repurchase, as described under “Description of Notes—Purchase Upon Change of Control Triggering Event.”

We intend to use the net proceeds from this offering to repay in full our Credit Facility (as defined herein), and we may use any remaining proceeds for other general corporate purposes. See “Use of Proceeds.”

The notes will be our senior unsecured obligations and will rank equally in right of payment with all of our other senior unsecured obligations from time to time outstanding, including our Credit Facility. The notes will be issued only in registered book-entry form and in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. See “Description of Notes.”

Each series of the notes is a new issue of securities with no established trading market. We do not intend to apply for the notes to be listed on any securities exchange or to arrange for the notes to be quoted on any automated quotation system.

Investing in the notes involves certain risks. See “Risk Factors” beginning on page S-11 of this prospectus supplement and the section entitled “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, as such risks may be updated or supplemented in our subsequently filed Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, which are incorporated by reference into this prospectus supplement and the accompanying prospectus, and in the documents incorporated by reference herein for a discussion of certain risks that you should consider in connection with an investment in the notes.

Public Offering Price(1)

Underwriting Discount

Proceeds,
Before Expenses, to Us(1)

Per Note

Total

Per Note

Total

Per Note

Total

% Notes due 20

Total

—

(1)

Plus accrued interest, if any, from May , 2024, if settlement occurs after that date.

Neither the Securities and Exchange Commission nor any state or other securities commission has approved or disapproved of these securities or determined if this prospectus supplement and the accompanying prospectus are truthful or complete. Any representation to the contrary is a criminal offense.

The notes will be ready for delivery in book-entry form, only through the facilities of The Depository Trust Company for the accounts of its participants, which may include Clearstream Banking, société anonyme, and Euroclear Bank S.A./N.V., as operator of the Euroclear System, against payment in New York, New York, on or about May , 2024.

Joint Book-Running Managers

BofA SecuritiesGoldman Sachs & Co. LLC Morgan Stanley

The date of this prospectus supplement is , 2024.

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Prospectus Supplement

	Page
ABOUT THIS PROSPECTUS SUPPLEMENT		S-1
WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE		S-2
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS		S-4
SUMMARY		S-6
RISK FACTORS		S-11
USE OF PROCEEDS		S-15
CAPITALIZATION		S-16
DESCRIPTION OF NOTES		S-17
MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS		S-32
UNDERWRITING		S-37
LEGAL MATTERS		S-43
EXPERTS		S-43

Prospectus

	ABOUT THIS PROSPECTUS					1
	SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS					2
	WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE					3
	ATLASSIAN CORPORATION					5
	RISK FACTORS					6
	USE OF PROCEEDS					7
	DESCRIPTION OF CAPITAL STOCK					8
	DESCRIPTION OF DEBT SECURITIES					13
	DESCRIPTION OF OTHER SECURITIES					20
	GLOBAL SECURITIES					21
	PLAN OF DISTRIBUTION					25
	LEGAL MATTERS					26
	EXPERTS					26

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ABOUT THIS PROSPECTUS SUPPLEMENT

On May 6, 2024, we filed with the Securities and Exchange Commission (the “SEC”) a registration statement on Form S-3 (File No. 333-279132) as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act of 1933, as amended (the “Securities Act”), using a shelf registration process relating to certain securities, including the securities described in this prospectus supplement, which registration statement became automatically effective upon filing.

This document contains two parts. The first part is this prospectus supplement, which describes the specific terms of this offering and also supplements and updates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and the accompanying prospectus. The second part is the accompanying prospectus, which provides more general information, some of which may not apply to this offering. If the information contained in this prospectus supplement differs or varies from the information contained in the accompanying prospectus, you should rely on the information set forth in this prospectus supplement. If the information conflicts with any statement in a document that we have incorporated by reference, then you should consider only the statement in the more recent document.

We and the underwriters have not authorized anyone to provide you with information or to make any representation other than the information and representations contained or incorporated by reference in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein, along with the information contained in any permitted free writing prospectuses we have authorized for use in connection with this offering. We and the underwriters take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you.

We and the underwriters are offering to sell, and seeking offers to buy, the notes only in jurisdictions where offers and sales are permitted. For investors outside the United States, we and the underwriters have not done anything that would permit this offering or possession or distribution of this prospectus supplement, the accompanying prospectus and any free writing prospectus that we have authorized for use in connection with this offering in any jurisdiction where action for that purpose is required, other than in the United States. Persons outside the United States who come into possession of this prospectus supplement, the accompanying prospectus and any free writing prospectus that we have authorized for use in connection with this offering must inform themselves about, and observe any restrictions relating to, the offering of the notes and the distribution of this prospectus supplement, the accompanying prospectus and any free writing prospectus that we have authorized for use in connection with this offering outside the United States.

This prospectus supplement and the accompanying prospectus incorporate by reference, and any free writing prospectus may contain and incorporate by reference, market data and industry statistics and forecasts that are based on independent industry publications and other publicly available information. Although we believe these sources are reliable, we do not guarantee the accuracy or completeness of this information and we have not independently verified this information. In addition, the market and industry data and forecasts that may be included or incorporated by reference in this prospectus supplement, the accompanying prospectus or any applicable free writing prospectus may involve estimates, assumptions and other risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risk Factors” in the this prospectus supplement, the accompanying prospectus, any applicable free writing prospectus, in our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, our Quarterly Reports on Form 10-Q for the fiscal quarters ended September 30, 2023, December 31, 2023 and March 31, 2024, which are each incorporated by reference herein, and under similar headings in other documents that are incorporated by reference in such documents. Accordingly, you should not place undue reliance on this information.

The information contained in this prospectus supplement and the accompanying prospectus is accurate only as of the date of this prospectus supplement or the date of the accompanying prospectus, as applicable, and the information in the documents incorporated by reference in this prospectus supplement and the accompanying prospectus is accurate only as of the date of those respective documents, regardless of the time of delivery of this prospectus supplement and the accompanying prospectus or of any sale of the notes. Our business, financial condition, results of operations and prospects may have changed since those dates. It is important for you to read and consider all information contained or incorporated by reference in this

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prospectus supplement and the accompanying prospectus in making your investment decision. You should read this prospectus supplement, the accompanying prospectus and any free writing prospectus that we have authorized for use in connection with this offering, as well as the documents incorporated by reference herein and therein and the additional information described under “Where You Can Find More Information; Incorporation by Reference” in this prospectus supplement and in the accompanying prospectus, before investing in the notes.

When we refer to “Atlassian,” “we,” “our,” “us” and the “Company” in this prospectus supplement and the accompanying prospectus, we mean Atlassian Corporation and its consolidated subsidiaries, unless otherwise specified. When we refer to “you,” we mean the potential holders of the notes.

WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE

Available Information

We file annual, quarterly and current reports, proxy statements and other information with the SEC. The SEC maintains a website at http://www.sec.gov, which contains reports, proxy and information statements and other information regarding issuers like us who file electronically with the SEC. Interested persons can electronically access from such site the registration statement of which this prospectus supplement and the accompanying prospectus form a part, including the exhibits and schedules to the registration statement. Our website address is www.atlassian.com and our investor relations website is https://investors.atlassian.com. These website addresses, and the website addresses included in any documents incorporated by reference herein, are not intended to function as hyperlinks, and the information contained on or accessible through such websites and on the SEC’s website is not incorporated by reference in this prospectus supplement and the accompanying prospectus and you should not consider it a part of this prospectus supplement and the accompanying prospectus.

As permitted by SEC rules, this prospectus supplement and the accompanying prospectus does not contain all of the information we have included in the registration statement and the accompanying exhibits and schedules we file with the SEC. You may refer to the registration statement, exhibits and schedules for more information about us and the notes. The registration statement, exhibits and schedules are available through the SEC’s website.

Incorporation By Reference

The SEC allows us to “incorporate by reference” in this prospectus supplement and the accompanying prospectus information in other documents that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus supplement and the accompanying prospectus, as applicable, and information in documents that we file later with the SEC will automatically update and supersede information contained in documents filed earlier with the SEC or contained in this prospectus supplement and the accompanying prospectus, as applicable.

This prospectus supplement incorporates by reference the documents set forth below that have previously been filed with the SEC:

•

Our Annual Report on Form 10-K for the year ended June 30, 2023, filed with the SEC on August 18, 2023;

•

The information specifically incorporated by reference into our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, from our Definitive Proxy Statement on Schedule 14A, filed with the SEC on October 18, 2023;

•

Our Quarterly Reports on Form 10-Q for the fiscal quarters ended September 30, 2023, December 31, 2023 and March 31, 2024, filed with the SEC on November 3, 2023, February 2, 2024, and April 26, 2024, respectively;

•

Our Current Reports on Form 8-K, filed with the SEC on August 3, 2023 (with respect to Item 5.02 only), December 7, 2023 and April 25, 2024 (with respect to Item 5.02 only); and

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•

The description of our capital stock set forth in Exhibit 4.3 of our Annual Report on Form 10-K for the year ended June 30, 2023, filed with the SEC on August 18, 2023, together with any amendment or report filed with the SEC for the purpose of updating such description.

All reports and other documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), after the date of this prospectus supplement and prior to the termination of the offering of the securities hereunder shall be deemed to be incorporated by reference in this prospectus supplement and to be part hereof from the date of filing of such reports and other documents.

Under no circumstances will any information filed under Items 2.02 or 7.01 of Current Report on Form 8-K be deemed incorporated herein by reference unless such Form 8-K expressly provides to the contrary.

Notwithstanding the statements in the preceding paragraphs, no document, report, or exhibit (or portion of any of the foregoing) or any other information that we have “furnished” or may in the future “furnish” to the SEC pursuant to the Exchange Act shall be incorporated by reference into this prospectus supplement.

You may request a free copy of any of the documents incorporated by reference in this prospectus supplement by writing or telephoning us at the following address:

Atlassian Corporation
Attn: Investor Relations
350 Bush Street, Floor 13
San Francisco, California 94104
(415) 701-1110

We will not, however, send exhibits to those documents, unless the exhibits are specifically incorporated by reference in those documents.

We make available free of charge on our website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports, as soon as reasonably practicable after we electronically file or furnish such materials to the SEC. You may obtain a free copy of these reports on our investor relations website https://investors.atlassian.com.

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein include “forward-looking statements” within the meaning of Section 27A of the Securities Act, Section 21E of the Exchange Act, and the Private Securities Litigation Reform Act of 1995. Please also see the sections entitled “Risk Factors” in this prospectus supplement, our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, our Quarterly Reports on Form 10-Q for the fiscal quarters ended September 30, 2023, December 31, 2023 and March 31, 2024, and under similar headings in any other documents incorporated by reference in this prospectus supplement and the accompanying prospectus, for important information to consider when evaluating these statements. In some cases, you can identify these statements by forward-looking words such as “may,” “will,” “expect,” “believe,” “anticipate,” “intend,” “could,” “should,” “estimate,” or “continue,” and similar expressions or variations, but these words are not the exclusive means for identifying such statements. Such forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results and the timing of certain events to differ materially from future results and timing expressed or implied by such forward-looking statements.

You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements in this prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, results of operations and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein. The results, events and circumstances reflected in the forward-looking statements may not be achieved or occur, and actual results, events or circumstances could differ materially from those described in the forward-looking statements.

The forward-looking statements made in this prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein to reflect events or circumstances after the date of such documents or to reflect new information or the occurrence of unanticipated events, except as required by law. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, or investments.

In this prospectus supplement, the accompanying prospectus and documents that are incorporated by reference herein and therein, forward-looking statements include statements regarding, without limitation, the following:

•

our rapid growth makes it difficult to evaluate our future prospects and may increase the risk that we will not continue to grow at or near historical rates;

•

we may not be able to sustain our revenue growth rate or achieve profitability in the future;

•

the continuing global economic and geopolitical volatility, the COVID-19 pandemic, including any associated economic and social impacts, increased inflation and measures taken in response to these events, could harm our business and results of operations;

•

the markets in which we participate are intensely competitive, and if we do not compete effectively, our business, results of operations, and financial condition could be harmed;

•

our distribution model of offering and selling on-premises offerings of certain of our products, in addition to offering and selling cloud offerings of these products, increases our expenses, may impact revenue recognition timing, and may pose other challenges to our business;

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•

our business depends on our customers renewing their subscriptions and maintenance plans and purchasing additional licenses or subscriptions from us, and any decline in our customer retention or expansion could harm our future results of operations;

•

if we are not able to develop new products and enhancements to our existing products that achieve market acceptance and that keep pace with technological developments, our business and results of operations could be harmed;

•

our quarterly results have fluctuated in the past and may fluctuate significantly in the future and may not fully reflect the underlying performance of our business;

•

our business model relies on a high volume of transactions and affordable pricing. As lower cost or free products are introduced by our competitors, our ability to generate new customers could be harmed;

•

if we fail to effectively manage our growth, our business and results of operations could be harmed;

•

our recent restructuring may not result in anticipated alignment with customer needs and business priorities or operational efficiencies, could result in total costs and expenses that are greater than expected, and could disrupt our business;

•

if our current marketing model is not effective in attracting new customers, we may need to incur additional expenses to attract new customers and our business and results of operations could be harmed;

•

our Credit Facility and overall debt level may limit our flexibility in obtaining additional financing and in pursuing other business opportunities or operating activities;

•

legal, regulatory, social, and ethical issues relating to the use of new and evolving technologies, such as artificial intelligence and machine learning, in our offerings may result in reputational harm and liability;

•

if our security measures are breached or unauthorized or inappropriate access to customer data is otherwise obtained, our products may be perceived as insecure, we may lose existing customers or fail to attract new customers, and we may incur significant liabilities;

•

interruptions or performance problems associated with our technology and infrastructure could harm our business and results of operations;

•

real or perceived errors, failures, vulnerabilities, or bugs in our products or in the products on Atlassian marketplace could harm our business and results of operations;

•

privacy concerns and laws as well as evolving regulation of cloud computing, AI services, cross-border data transfer restrictions and other domestic or foreign regulations may limit the use and adoption of our services and adversely affect our business and results of operation;

•

our global operations and structure subject us to potentially adverse tax consequences; and

•

the dual class structure of our common stock has the effect of concentrating voting control with certain stockholders, in particular, our co-chief executive officers and their affiliates, which will limit our other stockholders’ ability to influence the outcome of important transactions, including a change in control.

We caution investors that forward-looking statements are only predictions based on our current expectations about future events and are not guarantees of future performance. You should not place undue reliance on these forward-looking statements, which speak only as of the date of this prospectus supplement. We undertake no obligation to publicly release any revisions to the forward-looking statements or reflect events or circumstances after the date of this document, except as required by law.

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SUMMARY

The following summary highlights material information contained elsewhere in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein but does not contain all of the information you need to consider in making your decision to invest in any of the notes. This summary is qualified in its entirety by the more detailed information and consolidated financial statements and notes thereto included in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein. You should read carefully this entire prospectus supplement and the accompanying prospectus and should consider, among other things, the matters set forth in the section entitled “Risk Factors” below and in our Annual Report on Form 10-K for the fiscal year ended June 30, 2023 and our Quarterly Reports on Form 10-Q for the fiscal quarters ended September 30, 2023, December 31, 2023 and March 31, 2024, which are each incorporated by reference herein, before deciding to invest in any of the notes.

ATLASSIAN CORPORATION

Overview

Our mission is to unleash the potential of every team.

Our products help teams plan, track and execute shared work—delivering superior outcomes for their organizations.

Our primary products include Jira Software and Jira Work Management for planning and project management, Confluence for content creation and sharing, and Jira Service Management for team service, management and support applications. Together, our products form an integrated system for organizing, discussing and completing shared work, becoming deeply entrenched in how teams collaborate and how organizations run. The Atlassian platform is the common technology foundation for our products that drives connection between teams, information, and workflows. It allows work to flow seamlessly across tools, automates the mundane so teams can focus on what matters, and enables better decision-making based on the data customers choose to put into our products.

Our mission is possible with a deep investment in product development to create and refine high-quality and versatile products that users love. We make our products affordable for organizations of all sizes, transparently share our pricing online for most of our products, and generally do not follow the practice of ad hoc discounting that is typical in the enterprise software industry. We aim to grow our customer base, targeting every organization, regardless of size, industry, or geography. This allows us to operate at unusual scale for an enterprise software company, with customers across virtually every industry sector in approximately 200 countries as of March 31, 2024. Our customers range from small organizations that have adopted one of our products for a small group of users, to over eighty percent of the Fortune 500, many of which use a combination of our products across thousands of users.

To reach this expansive market, we primarily distribute and sell our products online where our customers can get started in minutes without the need for assistance. We focus on enabling a self-service, low-friction model that makes it easy for customers to try, adopt and use our products. By making our products simple, powerful, affordable and easy to adopt, we generate demand from word-of-mouth and viral expansion within organizations.

Our culture of innovation, transparency and dedication to customer service drives our success in implementing and refining this unique approach. We believe this approach creates a self-reinforcing effect that fosters innovation, quality, customer success, and scale. As a result of this strategy, we invest significantly more in research and development activities than in traditional sales activities relative to other enterprise software companies.

Corporate Information

We filed our certificate of incorporation with the Secretary of the State of Delaware on July 1, 2022. The Company is the successor entity to Atlassian Corporation Plc, which was a public company limited by shares, incorporated under the laws of England and Wales.

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Our principal executive offices are located at 350 Bush Street, Floor 13, San Francisco, California 94104, and our telephone number is (415) 701-1110. Our corporate website address is www.atlassian.com and our investor relations web site is https://investors.atlassian.com. Information contained on, or accessible through, our website and our investor relations website shall not be deemed incorporated into and is not a part of this prospectus supplement, the accompanying prospectus or the registration statement of which it forms a part. We have included our website and our investor relations website in this prospectus solely as an inactive textual reference.

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The Offering

The following summary describes the principal terms of the notes. Certain of the terms and conditions described below are subject to important limitations and exceptions. Please see the “Description of Notes” section of this prospectus supplement and the “Description of Debt Securities” section of the accompanying prospectus for a more detailed description of the terms of the notes and the subsections mentioned specifically in this summary for a more complete understanding of the notes.”

Issuer

Atlassian Corporation.

Securities Offered

$ aggregate principal amount of % senior notes due 20 .

Maturity

20 notes: , 20 .

Original Issue Date

, 20 .

Interest Rate

20 notes: % per annum.

Interest Payment Dates

Interest will be paid on the notes of each series on and of each year, beginning on , 2024.

Ranking

The notes will be:

•

our unsubordinated unsecured obligations;

•

equal in right of payment with all of our existing and future unsecured and unsubordinated indebtedness from time to time outstanding, including obligations under our Credit Facility;

•

effectively junior to any of our future secured indebtedness to the extent of the value of the assets securing such indebtedness; and

•

senior in right of payment to all of our future subordinated indebtedness.

Optional Redemption

Prior to their respective Par Call Dates, as defined herein, we may redeem the notes of such series at our option, in whole or in part, at any time and from time to time, at the “make-whole” redemption price, as described in “Description of Notes—Optional redemption.”

On or after the applicable Par Call Date, we may redeem the applicable series of notes, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the notes being redeemed, plus accrued and unpaid interest thereon to, but excluding, the redemption date.

Purchase Upon a Change of Control Triggering Event

If a Change of Control Triggering Event, as defined herein, occurs with respect to a series of notes, unless we have exercised our right to redeem such notes as described above, we will be required to make an offer to repurchase the notes for cash at a price equal to 101% of the principal amount thereof, plus accrued and unpaid

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interest to, but not including, the repurchase date. See “Description of Notes—Purchase Upon Change of Control Triggering Event” for more information.

Certain Covenants

The indenture under which the notes will be issued contains covenants restricting our ability, subject to certain exceptions, to incur debt secured by liens, to enter into sale and leaseback transactions or to merge or consolidate with another entity or sell substantially all of our assets to another person. See “Description of Notes—Covenants.”

Trading

The notes do not have an established trading market. We do not intend to apply for listing of the notes on any securities exchange. The underwriters have advised us that they intend to make a market in the notes, but they are not obligated to do so and may discontinue market-making at any time without notice. See “Underwriting” in this prospectus supplement for more information about possible market-making by the underwriters.

Trustee, Registrar and Paying
Agent

U.S. Bank Trust Company, National Association.

Form and Denomination

The notes of each series will be issued in the form of one or more fully registered global notes without interest coupons which will be deposited with, or on behalf of, The Depository Trust Company (“DTC”), New York, New York, and registered in the name of Cede & Co., as nominee of DTC, for the accounts of participants in DTC. Unless and until exchanged, in whole or in part, for notes in definitive registered form, a global note may not be transferred except in the limited circumstances described under “Description of Notes—Book-Entry; Delivery and Form; Global Note,” notes in certificated form will not be issued or exchanged for interests in global securities.

Governing Law

New York.

Further Issuances

We may, without notice to or consent of the holders of the notes, increase the principal amount of each series of notes by issuing additional notes in the future having the same ranking, interest rate, maturity and the same other terms and conditions as the outstanding notes of such series, except for any differences in the issue date, the issue price, and, in certain circumstances, the date interest begins to accrue and the first interest payment date. Under the indenture governing the notes, the notes and any additional notes that we may issue will be treated as a single series with the outstanding notes of such series for all purposes under the indenture governing the notes (including for purposes of determining whether the required percentage of the holders of record has given approval or consent to an amendment or waiver or joined in directing the trustee to take certain actions on behalf of all holders) and may (but are not required to) bear the same CUSIP number as the applicable series of notes offered hereby; provided that if the additional notes are not fungible with the applicable series of notes offered hereby for U.S. federal income tax purposes, such additional notes will have one or more separate CUSIP numbers.

Sinking Fund

None.

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Use of Proceeds

Material U.S. Federal Income Tax Considerations

Please see “Material U.S. Federal Income Tax Considerations” for important information regarding the possible tax consequences to holders of the notes. Potential investors are also urged to consult their own professional advisers regarding the possible tax consequences under the laws of the jurisdictions that apply to them.

Risk Factors

Investing in the notes involves certain risks. You should carefully consider all of the information in this prospectus supplement and the accompanying prospectus. See “Risk Factors” beginning on page S-11 in this prospectus supplement and the sections entitled “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, our Quarterly Reports on Form 10-Q for the fiscal quarters ended September 30, 2023, December 31, 2023 and March 31, 2024, which are each incorporated herein by reference, as well as the other information included in or incorporated by reference in this prospectus supplement and the accompanying prospectus, for a discussion of risks you should carefully consider before investing in the notes. See also “Special Note Regarding Forward-Looking Statements” in this prospectus supplement.

Conflict of Interest

As described under “Use of Proceeds,” we expect to use a portion of the net proceeds from this offering to repay in full our Credit Facility. Certain of the underwriters and/or their affiliates are lenders under the Credit Facility, and thus might receive a portion of the net proceeds from this offering through the repayment of that indebtedness. If in the event that 5% or more of the net proceeds from this offering (not including underwriting discounts) is used to repay such outstanding indebtedness held by at least one of the underwriters and/or its affiliates, this offering will be conducted in accordance with Rule 5121 of the Financial Industry Regulatory Authority, Inc. Conduct Rules (“FINRA Rule 5121”). In such event, such underwriter or underwriters will not confirm sales of the notes to accounts over which they exercise discretionary authority without the prior written approval of the customer. Pursuant to FINRA Rule 5121, the appointment of a qualified independent underwriter is not necessary in connection with this offering because the notes are “investment grade rated” as defined by FINRA Rule 5121. See also “Underwriting” in this prospectus supplement.

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RISK FACTORS

Investing in the notes involves risks. Before making a decision to invest in the notes, you should carefully consider the risks related to the notes set forth below, as well as those contained in section entitled “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended June 30, 2023, as such risks may be updated or supplemented in our subsequently filed Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, which are incorporated by reference into this prospectus supplement, the information contained under the heading “Special Note Regarding Forward-Looking Statements” in this prospectus supplement or in any document incorporated herein or therein by reference. The risks and uncertainties described in our SEC filings are not the only risks we face. Additional risks not currently known or considered immaterial by us at this time and thus not listed could also result in adverse effects on our business. Additional risks and uncertainties not presently known to us, or that we currently see as immaterial, may also harm our business. If any such risks and uncertainties actually occur, our business, financial condition, results of operations, cash flows and prospects could be materially and adversely affected, the market price of our securities could decline and you could lose all or part of your investment. See “Where You Can Find More Information; Incorporation by Reference” and “Special Note Regarding Forward-Looking Statements” in this prospectus supplement and the accompanying prospectus.

Risks Related to the Notes

Our level of indebtedness could limit the cash flow available for our operations and could adversely affect our ability to service our debt or obtain additional financing, if necessary.

As of March 31, 2024, our total consolidated senior debt outstanding, including that of our subsidiaries, was $975.0 million (without giving effect to letters of credit outstanding), and $500.0 million was available for borrowing under the credit agreement dated as of October 28, 2020, as amended and supplemented from time to time, by and among Atlassian Corporation (successor entity to Atlassian Corporation Plc), Atlassian US, Inc. (f/k/a Atlassian, Inc.), Bank of America, N.A., as administrative agent, and the other lenders and parties thereto, providing for a $1 billion senior unsecured delayed-draw term loan facility (the “Term Loan Facility”) and a $500 million senior unsecured revolving credit facility (the “Revolving Credit Facility,” and together with the Term Loan Facility, the “Credit Facility”). Our level of indebtedness could have important consequences to our financial health. For example, our level of indebtedness could, among other things:

•

make it more difficult for us to satisfy our financial obligations, including those relating to the notes and our Credit Facility;

•

affect our liquidity by limiting our ability to obtain additional financing for working capital, or limit our ability to obtain financing for capital expenditures and acquisitions or make any available financing more costly;

•

require us to dedicate all or a substantial portion of our cash flow to service our debt, which would reduce funds available for other business purposes, such as capital expenditures, dividends or acquisitions;

•

limit our flexibility in planning for or reacting to changes in the markets in which we compete;

•

negatively impact our credit rating, which could limit our ability to obtain additional financing in the future and adversely affect our business; and

•

result in an event of default if we fail to satisfy our obligations under the notes or the agreements governing our other debt or fail to comply with the financial and other restrictive covenants contained in the indenture governing the notes or the agreements governing our other debt, which event of default could result in the notes and all of our debt becoming immediately due and payable and could permit certain of our lenders to foreclose on our assets securing such debt.

We may also incur substantial additional debt in the future, some of which may be secured debt. There can be no assurance that we will be able to repay this indebtedness when due, or that we will be able to refinance this indebtedness on acceptable terms or at all.

An active trading market for the notes may not develop.

There is currently no public market for the notes, and we do not currently plan to list the notes on any national securities exchange. In addition, the liquidity of any trading market in a series of notes, and the

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market price quoted for such notes, may be adversely affected by changes in the overall market for these notes, prevailing interest rates, ratings assigned to the notes, time remaining to the maturity of the notes, outstanding amount of the notes, the market for similar securities, prospects for other companies in our industry and changes in our consolidated financial condition, results of operations or prospects. In particular, an increase in prevailing interest rates will generally result in a decrease in the market price of the notes. A liquid trading market in the notes may not develop, which could decrease the amounts you would otherwise receive upon a sale or disposition of the notes.

The notes will be unsecured and effectively subordinated to our future secured debt.

To the extent we incur secured debt in the future, holders of our secured debt will have claims that are prior to your claims as holders of the notes to the extent of the value of the assets securing the secured debt. The notes will be effectively subordinated to all secured debt to the extent of the value of the collateral. In the event of any distribution or payment of our assets in any foreclosure, dissolution, winding-up, liquidation, reorganization or other bankruptcy proceeding, holders of secured debt will have prior claim to those of our assets that constitute their collateral. Holders of the notes will participate ratably with all holders of our unsecured debt that is deemed to be of the same class as the notes, and potentially with all of our other general creditors, based upon the respective amounts owed to each holder or creditor, in our remaining assets. In any of the foregoing events, we cannot assure you that there will be sufficient assets to pay amounts due on the notes. As a result, holders of notes may receive less, ratably, than holders of secured debt.

As of March 31, 2024, we have no secured debt. We are permitted to borrow substantial additional debt, including secured debt, in the future under the terms of the indenture governing the notes.

The indenture governing the notes contains only very limited negative covenants. The limitation on liens and sale/leaseback covenants do not apply to all our subsidiaries and contain exceptions that would allow us and our subsidiaries to grant liens or security interests with respect to their assets, rendering the holders of the notes effectively, structurally or contractually subordinated to new lenders. The indenture governing the notes does not contain any financial covenants.

The indenture governing the notes contains only very limited negative covenants. The limitation on liens and limitation on sale/leaseback covenants apply to us and to our restricted subsidiaries with respect to principal properties of ours or such subsidiaries. As a result, these covenants do not cover the majority of our consolidated assets and our unrestricted subsidiaries will not be restricted under the indenture governing the notes from granting liens or security interests with respect to all or any of their assets without having to provide similar liens or security to the holders of the notes, or from entering into sale/leaseback transactions. Exceptions within the limitation on liens covenant would allow us and our restricted subsidiaries to borrow substantial additional amounts, and to grant liens or security interests in connection with those borrowings. The indenture governing the notes does not contain any financial covenants.

Increased leverage may harm our financial condition and results of operations.

We and our subsidiaries may incur additional indebtedness in the future and the notes do not restrict the future incurrence of indebtedness. Any increase in our level of indebtedness will have several important effects on our future operations, including, without limitation:

•

we and/or our subsidiaries will have additional cash requirements in order to support the payment of interest on our outstanding indebtedness;

•

increases in our outstanding indebtedness and leverage will increase our vulnerability to adverse changes in general economic and industry conditions, as well as to competitive pressure; and

•

our ability to obtain additional financing for working capital, capital expenditures, general corporate and other purposes may be limited. Our ability to make payments of principal and interest on our indebtedness depends upon our future performance, which will be subject to general economic conditions, industry cycles and financial, business and other factors affecting our consolidated operations, many of which are beyond our control.

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If we are unable to generate sufficient cash flow from operations in the future to service our debt, we may be required, among other things, to:

•

seek additional financing in the debt or equity markets;

•

refinance or restructure all or a portion of our indebtedness, including the notes;

•

sell selected assets;

•

reduce or delay planned capital expenditures; or

•

reduce or delay planned operating and investment expenditures.

Such measures might not be sufficient to enable us to service our debt. In addition, any such financing, refinancing or sale of assets might not be available on economically favorable terms, or at all.

The terms of the notes will not protect you in the event of highly leveraged transactions or a change of control.

The terms of the notes will not afford you protection in the event of certain highly leveraged transactions or a change of control that may adversely affect you unless such change of control also constitutes a Change of Control Triggering Event. As a result, we could enter into any such transaction even though the transaction could increase the total amount of our outstanding indebtedness, adversely affect our capital structure or credit rating or otherwise adversely affect the holders of the notes. If any such transaction were to occur, the value of your notes could decline.

We may not be able to purchase all of the notes upon a Change of Control Triggering Event, which would result in a default under the notes.

We will be required to offer to purchase the notes of each series upon the occurrence of a Change of Control Triggering Event with respect to such notes as provided in the indenture governing the notes. However, we may not have sufficient funds to purchase the notes in cash at such time. In addition, our ability to purchase the notes for cash may be limited by law or the terms of other agreements relating to our indebtedness outstanding at the time, which agreements may provide that a Change of Control Triggering Event constitutes an event of default or prepayment under such other indebtedness and we may not have sufficient funds to repay such other indebtedness. Our failure to make such a purchase would result in a default under your notes and may cause the acceleration of our other debt.

You may not be able to determine when a Change of Control Triggering Event has occurred.

The definition of change of control, which is a condition precedent to a Change of Control Triggering Event, includes a phrase relating to the sale, lease or transfer of “all or substantially all” of our assets. There is no precisely established definition of the phrase “substantially all” under applicable law. Accordingly, your ability to require us to repurchase your notes as a result of a sale, lease or transfer of less than all of our assets to another individual, group or entity may be uncertain.

Credit ratings of the notes may change and affect the market price and marketability of the notes.

Credit ratings are limited in scope, and do not address all material risks relating to an investment in the notes, but rather reflect only the view of the applicable rating agency at the time the rating is issued. An explanation of the significance of such rating may be obtained from such rating agency. There is no assurance that such credit ratings will remain in effect for any given period of time or that such ratings will not be lowered, suspended or withdrawn entirely by the rating agencies, if, in each rating agency’s judgment, circumstances so warrant. It is also possible that such ratings may be lowered in connection with future events. Holders of notes will have no recourse against us or any other parties in the event of a change in or suspension or withdrawal of such ratings. Any lowering, suspension or withdrawal of such ratings may have an adverse effect on the market price or marketability of the notes. In addition, any decline in the ratings of the notes may make it more difficult for us to raise capital on acceptable terms.

An increase in market interest rates could result in a decrease in the value of the notes.

In general, as market interest rates rise, notes bearing interest at a fixed rate decline in value. Consequently, if you purchase the notes, and the market interest rates subsequently increase, the market value of your notes may decline. We cannot predict the future level of market interest rates.

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Redemption prior to maturity may adversely affect your return on the notes.

Since the notes are redeemable at our option, we may choose to redeem your notes at times when prevailing interest rates are relatively low. As a result, you generally will not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the interest rate on your notes being redeemed.

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USE OF PROCEEDS

We estimate that the net proceeds from this offering will be approximately $ , after deducting the underwriting discount and estimated offering expenses payable by us. We intend to use the net proceeds from this offering to repay in full our Credit Facility, and we may use any remaining proceeds for other general corporate purposes. General corporate purposes may include additions to working capital, financing of capital expenditures, share repurchases, and future acquisitions and strategic investment opportunities. Pending other uses, we may temporarily invest funds that are not immediately needed for these purposes in short-term investments, including cash, cash equivalents or marketable securities, or use funds to reduce outstanding short-term borrowings.

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CAPITALIZATION

The following table sets forth our consolidated cash and cash equivalents, and total capitalization as of March 31, 2024 (i) on an actual basis and (ii) as adjusted to give effect to the completion of this offering and the application of the net proceeds therefrom.

The table below should be read in conjunction with the “Risk Factors” and “Use of Proceeds” sections of this prospectus supplement and our historical consolidated financial statements and related notes incorporated by reference into this prospectus supplement and the accompanying prospectus.

	As of March 31, 2024
	Actual		As Adjusted
	(in thousands, except par value and share data)
Cash and cash equivalents		1,948,978
Marketable securities		163,318
Total cash and cash equivalents and marketable securities		2,112,296
Debt:
Term Loan Facility		974,724
Revolving Credit Facility		—
% Senior Notes Due 20 offered hereby(1)		—
% Senior Notes Due 20 offered hereby(1)		—
Total debt, current and long-term		974,724
Stockholders’ equity:
Preferred stock, $0.00001 par value; 10,000,000 shares authorized; no shares issued or outstanding		—
Class A Common Stock, $0.00001 par value; 750,000,000 shares authorized; 159,483,342 shares issued and outstanding		2
Class B Common Stock, $0.00001 par value; 230,000,000 shares authorized; 101,012,393 shares issued and outstanding		1
Additional paid-in capital		3,938,577
Treasury stock, at cost		—
Accumulated other comprehensive income (loss)		13,767
Accumulated deficit(2)		(2,818,176)
Total stockholders’ equity		1,134,171
Total capitalization		2,108,895

(1)

Represents the aggregate principal amount of the notes offered hereby, net of the underwriting discount and estimated offering expenses payable by us.

(2)

Accumulated deficit is adjusted for the unamortized debt discount and debt issuance costs associated with the Term Loan Facility that would have been expensed upon repayment.

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DESCRIPTION OF NOTES

The summary herein of certain provisions of the indenture referred to below does not purport to be complete and is subject to, and is qualified in its entirety by reference to, all the provisions of the notes and the indenture. The following description of the particular terms of the notes supplements, and to the extent inconsistent therewith, replaces the description of the general terms and provisions of the debt securities set forth under “Description of Debt Securities” in the accompanying prospectus. In this section, references to “Atlassian,” “the Company,” “us,” “we,” or “our” refer only to Atlassian Corporation and not to any of its subsidiaries.

General

The % notes due 20 (the “20 notes”) and the % notes due 20 (the “20 notes” and, together with the 20 notes, the “notes”) will each constitute a separate series of securities and will be issued only in book-entry form, in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof thereafter.

The notes will be issued under the base indenture dated as of the date of issuance of the notes and the first supplemental indenture dated as of the date of issuance of the notes (together, the “indenture”) setting forth the specific terms of the notes to be entered into concurrently with the initial issuance of the notes, by and between Atlassian and U.S. Bank Trust Company, National Association, as trustee, as may be supplemented from time to time. U.S. Bank Trust Company, National Association will initially be the trustee for any and all securities issued under the indenture, as amended, including the notes, and is referred to herein as the “trustee.” Atlassian will be the sole obligor on the notes.

Ranking

The notes will be:

•

the unsecured and unsubordinated obligations of Atlassian;

•

equal in right of payment with all of Atlassian’s other existing and future unsecured and unsubordinated indebtedness from time to time outstanding, including obligations under Atlassian’s Credit Facility;

•

senior in right of payment to all of Atlassian’s future subordinated indebtedness;

•

structurally subordinated to all indebtedness and liabilities (including trade payables and preferred stock obligations) of Atlassian’s subsidiaries; and

•

effectively subordinated to Atlassian’s secured indebtedness, if any, and that of its subsidiaries, if any, in each case, to the extent the value of the assets securing such indebtedness.

The indenture will not limit the ability of Atlassian to incur additional unsecured indebtedness. As of March 31, 2024, Atlassian had $975.0 million of outstanding indebtedness for borrowed money and $3,929.1 million of total liabilities on a consolidated basis, none of which was secured indebtedness. Of this amount, Atlassian’s subsidiaries had $3,917.9 million of liabilities (including trade payables and deferred revenue but excluding intercompany liabilities and liabilities of a type not required to be reflected on a balance sheet of such subsidiaries in accordance with generally accepted accounting principles) to which the notes would have been structurally subordinated.

Interest and Maturity

The 20 notes will mature on , 20 , and the 20 notes will mature on , 20 .

The 20 notes will bear interest at a rate of % per annum, and the 20 notes will bear interest at a rate of % per annum. Interest on the notes will be payable semi-annually in arrears on and , commencing on , 2024 to the persons in whose names the notes are registered at the close of business on the preceding or , as the case may be, whether or not a business day. Interest on the notes will be paid to, but excluding, the relevant interest payment date. Interest on the notes will be calculated on the basis of a 360-day year comprised of twelve 30-day months. All dollar amounts resulting from this calculation will be rounded to the nearest cent. If any interest payment date or the maturity date falls on a day that is not

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a business day the required payment will be made on the next succeeding business day and no interest on such payment will accrue in respect of the delay.

Issuance of Additional Notes

Atlassian may, without notice to or consent of the holders of the notes, increase the principal amount of each series of notes by issuing additional notes in the future having the same ranking, interest rate, maturity and the same other terms and conditions as the outstanding notes of such series, except for any differences in the issue date, the issue price, and, in certain circumstances, the date interest begins to accrue and the first interest payment date. Under the indenture, the notes and any additional notes that Atlassian may issue will be treated as a single series with the outstanding notes of such series for all purposes under the indenture (including for purposes of determining whether the required percentage of the holders of record has given approval or consent to an amendment or waiver or joined in directing the trustee to take certain actions on behalf of all holders) and may (but are not required to) bear the same CUSIP number as the applicable series of notes offered hereby; provided that if the additional notes are not fungible with the applicable series of notes offered hereby for U.S. federal income tax purposes, such additional notes will have one or more separate CUSIP numbers.. Unless the context otherwise requires, references to “notes” for all purposes under the indenture and this description include any additional notes that may be issued.

Atlassian also may, without the consent of the holders, issue other series of debt securities under the indenture in the future on terms and conditions different from the series of notes offered hereby.

Optional Redemption

Prior to their respective Par Call Dates (as defined below), Atlassian may redeem the notes of such series at its option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

(1)

(a) the sum of the present values of the remaining scheduled payments of principal and interest on such notes to be redeemed discounted to the redemption date (assuming that such notes matured on the applicable Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined below) plus basis points with respect to the 20 notes and basis points with respect to the 20 notes, in each case, less (b) interest accrued to the date of redemption; and

(2)

100% of the principal amount of such notes to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

On or after the applicable Par Call Date, Atlassian may redeem the applicable series of notes at its option, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued and unpaid interest thereon to, but excluding, the redemption date.

“Par Call Date” means, with respect to the 20 notes, , 20 ( month(s) prior to the maturity date of such notes), and with respect to the 20 notes, , 20 ( month(s) prior to the maturity date of such notes).

“Treasury Rate” means, with respect to any redemption date, the yield determined by us in accordance with the following two paragraphs.

The Treasury Rate shall be determined by the Company after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily) - H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities - Treasury constant maturities - Nominal” (or any successor caption or heading) (“H.15 TCM”). In determining the Treasury Rate, the Company shall select, as applicable: (1) the yield for the Treasury constant

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maturity on H.15 exactly equal to the period from the redemption date to the applicable Par Call Date (the “Remaining Life”); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields - one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life - and shall interpolate to the applicable Par Call Date on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, the Company shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the applicable Par Call Date, as applicable. If there is no United States Treasury security maturing on the applicable Par Call Date but there are two or more United States Treasury securities with a maturity date equally distant from the applicable Par Call Date, one with a maturity date preceding the applicable Par Call Date and one with a maturity date following the applicable Par Call Date, the Company shall select the United States Treasury security with a maturity date preceding the applicable Par Call Date. If there are two or more United States Treasury securities maturing on the applicable Par Call Date or two or more United States Treasury securities meeting the criteria of the preceding sentence, the Company shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

The Company’s actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary’s procedures) at least 10 days but not more than 60 days before the redemption date to each holder of notes to be redeemed.

Notice of any redemption of either series of notes may, at our discretion, be subject to one or more conditions precedent, including, but not limited to, completion of a corporate transaction (including, but not limited to, any merger, acquisition, disposition, asset sale or corporate restructuring or reorganization) or financing (including, but not limited to, any incurrence of indebtedness (or entering into a commitment with respect thereto), sale and leaseback transaction, issuance of securities, equity offering or contribution, liability management transaction or other capital raise) and may be given prior to the completion thereof. In such event, the related notice of redemption will describe each such condition and, if applicable, will state that, at our discretion, the redemption date may be delayed until such time (including more than 60 days after the notice of redemption was given) as any or all such conditions are satisfied (or waived by us in our sole discretion), or such redemption may not occur and such notice may be rescinded in the event that any or all such conditions have not been satisfied (or waived by us in our sole discretion) by the redemption date, or by the redemption date as so delayed. In addition, we may provide in such notice that payment of the redemption price and performance of our obligations with respect to such redemption may be performed by another person. If any such redemption has been rescinded or delayed, we will provide written notice to the trustee prior to the close of business two business days before the redemption date and, upon receipt, the trustee will provide such notice to each registered holder.

In the case of a partial redemption, selection of the notes for redemption will be made pro rata, by lot or by such other method as the trustee in its sole discretion deems appropriate and fair in accordance with the depositary’s procedures and any applicable stock exchange’s procedures. No such note of a principal amount of $2,000 or less will be redeemed in part. If any note is to be redeemed in part only, the notice of redemption

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that relates to the note will state the portion of the principal amount of the note to be redeemed. Except in the case of global notes, a new note in a principal amount equal to the unredeemed portion of the note will be issued in the name of the holder of the note upon surrender for cancellation of the original note. In the case of global notes, so long as the notes are held by The Depository Trust Company (“DTC”), Euroclear Bank S.A./N.V., as operator of the Euroclear System (“Euroclear”), and Clearstream Banking, société anonyme (“Clearstream”) (or another depositary), the redemption of the notes shall be done in accordance with the policies and procedures of the applicable depositary.

Unless the Company defaults in payment of the redemption price, on and after the redemption date interest will cease to accrue on the notes or portions thereof called for redemption. Additionally, at any time, we may repurchase notes in the open market and may hold such notes or surrender such notes to the trustee for cancellation.

Purchase Upon Change of Control Triggering Event

If a Change of Control Triggering Event (as defined below) occurs with respect to a series of notes, unless we have exercised our right to redeem such notes as described above, we will be required to make an offer to each holder of such notes to purchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that holder’s applicable notes at a purchase price in cash equal to 101% of the aggregate principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the date of purchase (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date); provided that after giving effect to the purchase, any notes that remain outstanding shall have a minimum denomination of $2,000 and integral multiples of $1,000 above that amount.

Within 30 days following the date upon which the Change of Control Triggering Event has occurred or, at our option, prior to any Change of Control (as defined below), but after the public announcement of the transaction that constitutes or may constitute the Change of Control, except to the extent that we have exercised our right to redeem the applicable notes as described under “—Optional Redemption,” we will mail or send a notice in accordance with the applicable procedures of the depositary (a “Change of Control Offer”) to each holder of notes subject to such offer with a copy to the trustee describing the transaction or transactions that constitute or may constitute a Change of Control Triggering Event and offering to purchase such notes on the date specified in the notice, which date will be no earlier than 30 days nor later than 60 days from the date such notice is mailed or sent (other than as may be required by law) (such date, the “Change of Control Payment Date”). The notice will, if mailed or sent prior to the date of consummation of the Change of Control, state that the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date specified in the notice. The Change of Control Payment Date must be a business day.

On each Change of Control Payment Date, we will, to the extent lawful:

•

accept for payment all notes or portions of the notes properly tendered pursuant to the Change of Control Offer;

•

deposit with the paying agent prior to 10:00 a.m. New York City time an amount equal to the change of control payment in respect of all notes or portions of notes properly tendered pursuant to the Change of Control Offer; and

•

deliver or cause to be delivered to the trustee the notes properly accepted together with an officer’s certificate stating the aggregate principal amount of notes or portions of notes being purchased.

The trustee will promptly mail, or cause the paying agent to promptly deliver, to each holder of notes so tendered the payment for such notes, and the trustee will promptly authenticate and deliver (or cause to be transferred by book entry) to each holder a new note equal in principal amount to any unpurchased portion of the notes surrendered, if any.

Except as described above with respect to a Change of Control Triggering Event, the indenture will not contain provisions that permit the holders to require us to purchase or redeem the notes in the event of a takeover, recapitalization or similar transaction.

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We will comply, to the extent applicable, with the requirements of Rule 14(e)-1 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and any other securities laws or regulations in connection with the purchase of notes pursuant to a Change of Control Triggering Event. To the extent that the provisions of any securities laws or regulations conflict with the terms described in the notes, we will comply with the applicable securities laws and regulations and will not be deemed to have breached our obligations by virtue thereof; rather, we will be deemed to comply with our obligation to repurchase notes upon a Change of Control Triggering Event in accordance with the indenture, modified as necessary by us in good faith to permit compliance with such law or regulation.

Holders of notes electing to have notes purchased pursuant to a Change of Control Offer will be required to surrender their notes, with the form entitled “Purchase Exercise Notice Upon a Change of Control Triggering Event” on the reverse of the note completed, to the paying agent at the address specified in the notice, or transfer their notes to the paying agent by book-entry transfer pursuant to the applicable procedures of The Depository Trust Company, prior to the close of business on the third business day prior to the Change of Control Payment Date.

We will not be required to make a Change of Control Offer if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by us hereunder and such third-party purchases all notes properly tendered and not withdrawn under its offer in accordance with such requirements.

In addition, we will not purchase any notes if there has occurred and is continuing on the Change of Control Payment Date an Event of Default under the indenture, other than a default in the payment of the change of control payment upon a Change of Control Triggering Event.

If holders of not less than 95% in aggregate principal amount of outstanding notes of such series validly tender and do not withdraw such notes in a Change of Control Offer and we, or any third party making a Change of Control Offer in lieu of us, as described above, purchases all of the notes of such series validly tendered and not withdrawn by such holders, all of the holders will be deemed to have consented to such Change of Control Offer and, accordingly, we will have the right, upon not less than 30 nor more than 60 days’ prior notice, given not more than 30 days following such purchase pursuant to the Change of Control Offer described above, to redeem all notes of such series that remain outstanding following such purchase at a redemption price in cash equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the date of redemption (subject to the right of holders of record on a record date to receive interest on the relevant interest payment date).

The definition of Change of Control includes a phrase relating to the sale, lease, transfer, conveyance or other disposition of “all or substantially all” of our assets and the assets of our subsidiaries taken as a whole. Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly, the ability of a holder of notes to require us to purchase its notes as a result of a sale, lease, transfer, conveyance or other disposition of less than all of our assets and the assets of our subsidiaries taken as a whole to another person may be uncertain.

For purposes of the Change of Control Offer provisions of the notes, the following definitions are applicable:

“Change of Control” means the occurrence of any one of the following:

(1)

the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of our assets and the assets of our subsidiaries taken as a whole to any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) other than to us or one of our subsidiaries;

(2)

the consummation of any transaction (including without limitation, any merger or consolidation) the result of which is that any “person” (as that term is used in Section 13(d)(3) of the Exchange Act) other than us or our subsidiaries, becomes the “beneficial owner” (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of more than 50% of our outstanding Voting Stock, measured by voting power rather than number of shares; provided, however, that a person shall not be deemed the beneficial owner of, or to own beneficially, any securities tendered pursuant

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to a tender or exchange offer made by or on behalf of such person or any of such person’s affiliates (as defined in the indenture) until such tendered securities are accepted for purchase or exchange thereunder;

(3)

we consolidate with, or merge with or into, any person, or any person consolidates with, or merges with or into, us, in any such event pursuant to a transaction in which any of our outstanding Voting Stock or the outstanding Voting Stock of such other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of our Voting Stock outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving person, or any direct or indirect parent of the surviving person, immediately after giving effect to such transaction; or

(4)

the adoption of a plan by our board of directors relating to our liquidation or dissolution in connection with a bankruptcy or insolvency proceeding.

Notwithstanding the foregoing, a transaction will not be considered to be a Change of Control if (1) we become a direct or indirect wholly owned subsidiary of a holding company and (2) immediately following that transaction, (a) the direct or indirect holders of the Voting Stock of the holding company are substantially the same as the holders of our Voting Stock in substantially the same proportions immediately prior to that transaction or (b) no person or group is the beneficial owner, directly or indirectly, of more than a majority of the total voting power of the Voting Stock of the holding company.

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Ratings Event.

“Fitch” means Fitch Ratings Inc. and its successors.

“Investment Grade” means a rating of Baa3 or better by Moody’s (or its equivalent under any successor rating category of Moody’s); a rating of BBB- or better by S&P (or its equivalent under any successor rating category of S&P); and a rating of BBB- or better by Fitch (or its equivalent under any successor rating category of Fitch) and the equivalent investment grade rating from any replacement Rating Agency or Agencies appointed by us.

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

“Rating Agency” currently means each of Moody’s and S&P; provided, that if, after the date of the initial issuance of the notes, Fitch rates the notes of a series and makes such rating publicly available, “Rating Agency” shall mean each of Moody’s, S&P and Fitch; further provided that if Moody’s, S&P and/or Fitch, as applicable, ceases to rate the notes of a series or fails to make a rating on the notes of a series publicly available for reasons outside of our control, we will appoint a replacement for such Rating Agency that is a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act.

“Ratings Event” means, with respect to a series of notes, that such notes are rated below Investment Grade by at least two of the three Rating Agencies (if the notes at such time are rated by three Rating Agencies) or by both Rating Agencies (if the notes at such time are rated by two Rating Agencies), on any day during the period (the “Trigger Period”) commencing on the date 60 days prior to the first public announcement by us of any Change of Control (or pending Change of Control) and ending 60 days following consummation of such Change of Control (which Trigger Period will be extended for so long as the rating of such notes is under publicly announced consideration for a possible downgrade by at least two of the three Rating Agencies (if the notes at such time are rated by three Rating Agencies) or by either of the Rating Agencies (if the notes at such time are rated by two Rating Agencies)); provided, however, that a Ratings Event otherwise arising by virtue of a particular reduction in rating will not be deemed to have occurred in respect of a particular Change of Control (and thus will not be deemed a Ratings Event for purposes of the definition of Change of Control Repurchase Event) unless each of the Rating Agencies announces or publicly confirms or informs the trustee in writing at Atlassian’s or its request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of Control.

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Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular Change of Control unless and until such Change of Control has actually been consummated.

“S&P” means S&P Global Ratings, a division of S&P Global Inc., and its successors.

“Voting Stock” of any specified person as of any date means the capital stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

Certain Covenants

Limitation on Liens

Atlassian will not incur, and will not permit any of its Restricted Subsidiaries to incur, any Indebtedness secured by a Lien (as defined below) upon (a) any Principal Property of Atlassian or any of its Restricted Subsidiaries or (b) any shares of stock or Indebtedness of any of its Restricted Subsidiaries (whether such Principal Property or shares or Indebtedness of any Restricted Subsidiary are now existing or owned or hereafter created or acquired), in each case, unless prior to or at the same time, the notes (together with, at the option of Atlassian, any other Indebtedness or Guarantees of Atlassian or any of its Subsidiaries ranking equally in right of payment with the notes or such Guarantee) are equally and ratably secured with or, at the option of Atlassian, prior to, such secured Indebtedness.

The foregoing restriction does not apply to:

(1)

Liens existing as of the closing date of this offering;

(2)

Liens granted after the closing date of this offering, created in favor of the holders of the notes or other series of notes under the indenture;

(3)

Liens securing our Indebtedness which are incurred to extend, renew or refinance Indebtedness which is secured by Liens permitted to be incurred under the indenture (including Permitted Liens) so long as such Liens are limited to all or part of substantially the same Principal Property which secured the Liens extended, renewed or replaced and the amount of Indebtedness secured is not increased (other than by the amount equal to any costs and expenses (including any premiums, fees or penalties) incurred in connection with any extension, renewal or refinancing); and

(4)

Permitted Liens.

Notwithstanding the foregoing, we and/or our Restricted Subsidiaries may, without securing the notes, create or incur Liens which would otherwise be subject to the restrictions set forth in the preceding paragraph, if after giving effect thereto, Aggregate Debt does not exceed the greater of (a) 15% of our Consolidated Net Tangible Assets calculated as of the date of creation or incurrence of the Lien and (b) $400.0 million.

Limitation on Sale and Lease-Back Transactions

Atlassian will not, and will not permit any of its Restricted Subsidiaries to, enter into any sale and lease-back transaction for the sale and leasing back of any Principal Property, whether now owned or hereafter acquired, unless:

(1)

such transaction was entered into prior to the issuance of the notes;

(2)

such transaction was for the sale and leasing back to us or any of our Subsidiaries of any Principal Property by us or one of our Subsidiaries;

(3)

such transaction involves a lease for less than three years;

(4)

we would be entitled to incur Indebtedness secured by a mortgage on the Principal Property to be leased in an amount equal to the Attributable Liens with respect to such sale and lease-back transaction without equally and ratably securing the notes pursuant to the first paragraph of “— Limitation on Liens” above; or

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(5)

we apply an amount equal to the fair value of the Principal Property (as determined by Atlassian’s board of directors in good faith) sold to the purchase of Property or to the retirement of our long-term Indebtedness that is pari passu with the notes (including the notes) within 365 days of the effective date of any such sale and lease-back transaction. In lieu of applying such amount to such retirement, we may deliver debt securities that rank pari passu with notes (including the notes) to the trustee under the indenture therefor for cancellation, such debt securities to be credited at the cost thereof to us.

Notwithstanding the foregoing, we and/or our Restricted Subsidiaries may enter into any sale and lease-back transaction which would otherwise be subject to the foregoing restrictions if after giving effect thereto and at the time of determination, Aggregate Debt does not exceed the greater of (a) 15% of our Consolidated Net Tangible Assets calculated as of the date of creation or incurrence of the Lien and (b) $400.0 million.

Events of Default

“Events of Default” under each series of notes means:

(1)

default in paying interest on the notes of the applicable series when it becomes due and the default continues for a period of 30 days or more;

(2)

default in paying principal, or premium, if any, on the notes of the applicable series when due at maturity, upon optional redemption as set forth under “—Optional Redemption” or otherwise;

(3)

failure by Atlassian to repurchase notes of such series tendered for repurchase following the occurrence of a change of control repurchase event in accordance with the covenant set forth under “—Purchase Upon Change of Control Triggering Event”;

(4)

default in the performance, or breach, of any covenant in the officer’s certificate, supplemental indenture or indenture governing the applicable series of notes (other than defaults specified in clause (1), (2) or (3) above) and the default or breach continues for a period of 90 days or more after we receive written notice from the trustee or we (with a copy to the trustee) receive notice from the holders of at least 25% in aggregate principal amount of the notes (together with any other applicable series of debt securities affected that is then outstanding (all such series voting together as a single class));

(5)

a failure to make any payment at maturity, including any applicable grace period, on any Indebtedness of Atlassian (other than Indebtedness of Atlassian owing to any of its Subsidiaries) outstanding in an amount in excess of $100 million and continuance of this failure to pay or (b) a default on any Indebtedness of Atlassian (other than Indebtedness owing to any of its Subsidiaries), which default results in the acceleration of such Indebtedness in an amount in excess of $100 million without such Indebtedness having been discharged or the acceleration having been cured, waived, rescinded or annulled, in the case of clause (a) or (b) above, for a period of 30 days after such failure to pay or acceleration, as applicable; provided, however, that if any failure, default or acceleration referred to in clause (a) or (b) above ceases or is cured, waived, rescinded or annulled, then the event of default will be deemed cured; and

(6)

certain events of bankruptcy, insolvency or reorganization with respect to us has occurred.

Certain Definitions

As used in this section, the following terms have the meanings set forth below.

“Aggregate Debt” means the sum of the following as of the date of determination:

(1)

the aggregate principal amount of our Indebtedness incurred after the closing date of this offering and secured by Liens not permitted by the first sentence under “—Limitation on Liens;” and

(2)

our Attributable Liens in respect of sale and lease-back transactions entered into after the closing date of this offering pursuant to the second paragraph of “—Limitation on Sale and Lease-Back Transactions.”

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“Attributable Liens” means in connection with a sale and lease-back transaction the lesser of:

(1)

the fair market value of the assets subject to such transaction (as determined in good faith by our board of directors); and

(2)

the present value (discounted at a rate per annum equal to the average interest borne by all outstanding notes (or other debt securities) issued under the indenture determined on a weighted average basis and compounded semi-annually) of the obligations of the lessee for rental payments during the term of the related lease.

“Consolidated Net Tangible Assets” means, as of any date of determination, the total assets less (a) all current liabilities (excluding deferred revenue ) and (b) the value of all goodwill and intangible assets (such as acquired developed technology, patents, trade names, and other rights, customer relationships), less accumulated amortization, all as shown on or reflected in our most recent consolidated balance sheet (including, without duplication, the notes related thereto) prepared in accordance with GAAP contained in an annual report on Form 10-K or a quarterly report on Form 10-Q or any amendment thereto (and not subsequently disclaimed as not being reliable by the Company) filed pursuant to the Exchange Act by the Company prior to the time as of which “Consolidated Net Tangible Assets” is being determined or, if the Company is not required to so file, as reflected on its most recent consolidated balance sheet prepared by the Company in accordance with GAAP.

“Finance Lease” means any Indebtedness represented by a lease obligation of a Person incurred with respect to real property or equipment acquired or leased by such Person and used in its business that is required to be recorded as a finance lease in accordance with GAAP.

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Public Company Accounting Oversight Board (United States) and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect as of the date of determination.

“Guarantee” means any obligation, contingent or otherwise, of any Person directly or indirectly guaranteeing any Indebtedness of any other Person and any obligation, direct or indirect, contingent or otherwise, of such Person (1) to purchase or pay (or advance or supply funds for the purchase or payment of) such Indebtedness of such other Person (whether arising by virtue of partnership arrangements, or by agreement to keep well, to purchase assets, goods, securities or services, to take or pay or to maintain financial statement conditions or otherwise) or (2) entered into for purposes of assuring in any other manner the obligee of such Indebtedness of the payment thereof or to protect such obligee against loss in respect thereof (in whole or in part); provided, however, that the term “Guarantee” will not include endorsements for collection or deposit in the ordinary course of business. The term “guarantee,” when used as a verb, has a correlative meaning.

“Hedging Obligations” means, with respect to any specified Person, the obligations of such Person under:

(1)

interest rate swap agreements (whether from fixed to floating or from floating to fixed), interest rate cap agreements and interest rate collar agreements;

(2)

other agreements or arrangements designed to manage interest rates or interest rate risk;

(3)

forward foreign exchange transactions, currency floor, cap, collar or swap transactions or currency options;

(4)

other agreements or arrangements designed to protect such Person against fluctuations in currency exchange rates or commodity prices; and

(5)

other agreements or arrangements designed to protect such person against fluctuations in equity or bond (or equity or bond index) prices.

“Indebtedness” of any specified Person means, without duplication, any indebtedness, whether or not contingent, in respect of borrowed money or evidenced by bonds, notes, debentures or similar instruments or

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letters of credit (or reimbursement agreements with respect thereto (other than obligations with respect to letters of credit securing obligations entered into in the ordinary course of business of such person to the extent such letters of credit are not drawn upon or, if and to the extent drawn upon, such drawing is reimbursed no later than the fifth business day following receipt by such person of a demand for reimbursement following payment on the letter of credit)), except any such balance that constitutes an accrued expense or trade payable, if and to the extent any of the foregoing indebtedness would appear as a liability upon a balance sheet of such Person prepared in accordance with GAAP (but does not include contingent liabilities which appear only in a footnote to a balance sheet).

“Lien” means any lien, security interest, charge or encumbrance of any kind (including any conditional sale or other title retention agreement).

“Non-recourse Obligation” means Indebtedness or other obligations substantially related to (1) the acquisition of assets not previously owned by Atlassian or any of its direct or indirect Subsidiaries or (2) the financing of a project involving the development or expansion of the properties of Atlassian or any of its direct or indirect Subsidiaries, as to which the obligee with respect to such Indebtedness or obligation has no recourse to Atlassian or any of its direct or indirect Subsidiaries or such Subsidiary’s assets other than the assets which were acquired with the proceeds of such transaction or the project financed with the proceeds of such transaction (and the proceeds thereof).

“Permitted Liens” means:

(1)

Liens on any of our assets, created solely to secure obligations incurred to finance the refurbishment, improvement or construction of such asset, which obligations are incurred no later than 18 months after completion of such refurbishment, improvement or construction, and all renewals, extensions, refinancings, replacements or refundings of such obligations;

(2)

(a) Liens given to secure the payment of the purchase price incurred in connection with the acquisition (including acquisition through merger or consolidation) of Property, including Finance Lease transactions in connection with any such acquisition, and (b) Liens existing on Property at the time of acquisition thereof or at the time of acquisition by us or any of our Subsidiaries, or merger with or acquisition of, any Person then owning such Property whether or not such existing Liens were given to secure the payment of the purchase price of the Property to which they attach; provided that, with respect to clause (a), the Liens shall be given within 18 months after such acquisition and shall attach solely to the Property acquired or purchased and any improvements then or thereafter placed thereon;

(3)

Liens in favor of customs and revenue authorities arising as a matter of law to secure payment of customs duties in connection with the importation of goods;

(4)

Liens for taxes not yet due or that are being contested in good faith by appropriate proceedings;

(5)

Liens securing reimbursement obligations with respect to letters of credit that encumber documents and other Property relating to such letters of credit and the products and proceeds thereof;

(6)

Liens encumbering customary deposits and margin deposits and other Liens in the ordinary course of business, in each case securing Hedging Obligations and forward contracts, options, futures contracts, futures options, equity hedges or similar agreements or arrangements designed to protect us from fluctuations in interest rates, currencies, equities or the price of commodities;

(7)

Liens incurred to secure cash or investment management or custodial services in the ordinary course of business or on insurance policies or self-insurance arrangements and the proceeds thereof securing the financing of the premiums with respect thereto;

(8)

Liens in our favor or in favor of a Restricted Subsidiary;

(9)

inchoate Liens incident to construction or maintenance of real property, or Liens incident to construction or maintenance of real property, now or hereafter filed of record for sums not yet delinquent or being contested in good faith, if reserves or other appropriate provisions, if any, as shall be required by GAAP shall have been made therefor;

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(10)

statutory Liens arising in the ordinary course of business with respect to obligations which are not delinquent by more than 90 days or are being contested in good faith, if reserves or other appropriate provisions, if any, as shall be required by GAAP shall have been made therefor;

(11)

Liens arising out of judgments or awards against us and Liens arising solely by virtue of any statutory or common law provision relating to banker’s Liens, rights of set-off or similar rights and remedies as to deposit accounts or other funds maintained with a creditor depository institution;

(12)

Liens consisting of pledges or deposits to secure obligations or obtain any benefits under workers’ compensation laws and unemployment insurance, old age pensions, social security or similar matters or legislation, including Liens of judgments thereunder which are not currently dischargeable, or deposits in connection with obtaining or maintaining self-insurance;

(13)

Liens consisting of pledges or deposits to secure the performance of bids, trade contracts and leases (other than Indebtedness), statutory obligations, surety and appeal bonds, performance bonds and other obligations of a like nature;

(14)

Liens consisting of deposits of Property to secure our statutory obligations in the ordinary course of our business;

(15)

Liens created in connection with a project financed with, and created to secure, a Non-recourse Obligation;

(16)

Liens on Property in favor of the United States of America or any state thereof, or in favor of any other country, or any department, agency, instrumentality or political subdivision thereof (including, without limitation, security interests to secure Indebtedness of the pollution control or industrial revenue type) in order to permit Atlassian or any of its Subsidiaries to perform a contract or to secure Indebtedness incurred for the purpose of financing all or any part of the purchase price for the cost of constructing or improving the Property subject to such security interests or which is required by law or regulation as a condition to the transaction of any business or the exercise of any privilege, franchise or license;

(17)

Liens incurred in connection with pollution control, industrial revenue or similar financings;

(18)

Liens on accounts, payment intangibles, chattel paper, instruments and/or other receivables granted in connection with sales of any of such assets;

(19)

Liens evidenced by UCC financing statement filings (or similar filings) regarding or otherwise arising under leases entered into by us or any Restricted Subsidiary in the ordinary course of business;

(20)

Purported Liens evidenced by filings of precautionary UCC financing statements relating solely to operating leases of personal property;

(21)

Liens on equipment of our company or any of our Restricted Subsidiaries granted in the ordinary course of business;

(22)

Liens on Property incurred in connection with any transaction permitted under “—Limitation on Sale and Lease-Back Transactions” which shall not be in addition to any basket provided in the last paragraph of such covenant; and

(23)

Liens created in substitution of any Liens permitted by clauses (1) through (18) above, or pursuant to clauses (1) through (3) of the first paragraph of “—Limitations on Liens” above; provided that, (a) based on a good faith determination of the board of directors of Atlassian, the Principal Property encumbered by such substitute or replacement Lien is substantially similar in nature to the Principal Property encumbered by the otherwise permitted Lien that is being replaced, and (b) the Indebtedness secured by such Lien at such time is not increased (other than by an amount equal to any related financing costs (including, but not limited to, the accrued interest, fees, penalties and premium, if any, on the Indebtedness being refinanced)).

“Person” means any individual, corporation, limited liability company, partnership, joint venture, association, joint stock company, trust, unincorporated organization, or any other entity, including any government or any agency or political subdivision thereof.

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“Principal Property” means the land, improvements, buildings and fixtures owned by Atlassian or any of its Restricted Subsidiaries that constitutes Atlassian’s (i) principal offices in San Francisco, California, and (ii) any research and development facility and any service and support facility (in each case including associated office facilities) located within the territorial limits of the States of the United States of America, except (in the case of (ii)) (a) such as Atlassian’s board of directors (or authorized committee thereof) by resolution determines in good faith (taking into account, among other things, the importance of such Property to the business, financial condition and earnings of Atlassian and its Subsidiaries taken as a whole) not to be of material importance to Atlassian’s and its Subsidiaries’ business, taken as a whole or (b) has a net book value that, on the date of determination as to whether such Property is a Principal Property is being made, does not exceed the greater of (x) 1.00% of Consolidated Net Tangible Assets or (y) 30.0 million.

“Property” means any property or asset, whether real, personal or mixed, or tangible or intangible, including shares of capital stock.

“Restricted Subsidiary” means any domestic Subsidiary of Atlassian that owns any Principal Property (other than any of its less than 80%-owned Subsidiaries if the common stock of such Subsidiary is traded on any national securities exchange or on the over-the-counter markets).

“Subsidiary” of any specified Person means any corporation, limited liability company, limited partnership, association or other business entity of which more than 50% of the total voting power of shares of capital stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof is at the time owned or controlled, directly or indirectly, by such person or one or more of the other Subsidiaries of that person or a combination thereof.

No Sinking Fund

The notes will not be entitled to any sinking fund.

Book-Entry; Delivery and Form; Global Note

The notes of each series will be issued in the form of one or more fully registered global notes without interest coupons which will be deposited with, or on behalf of, DTC, New York, New York, and registered in the name of Cede & Co., as nominee of DTC, for the accounts of participants in DTC. Unless and until exchanged, in whole or in part, for notes in definitive registered form, a global note may not be transferred except as a whole (i) by the depositary for such global note to a nominee of such depositary, (ii) by a nominee of such depositary to such depositary or another nominee of such depositary or (iii) by such depositary or any such nominee to a successor of such depositary or a nominee of such successor.

Ownership of beneficial interests in a registered global note will be limited to persons, called participants, that have accounts with the depositary (currently DTC) or persons that may hold interests through participants in DTC. Investors may hold their interests in a global note directly through Euroclear and Clearstream, if they are participants in such systems, or indirectly through organizations that are participants in such systems. Euroclear and Clearstream will hold interests in a global note on behalf of their participants through their respective depositaries, which in turn will hold such interests in the global note in customers’ securities accounts in the depositaries’ names on the books of DTC.

Upon transfer of a definitive note, the definitive note will be exchanged for an interest in a global note, and the transferee will be required to hold its interest through a participant in DTC, Euroclear or Clearstream, as applicable.

Upon the issuance of a registered global note, the depositary will credit, on its book-entry registration and transfer system, the participants’ accounts with the respective principal or face amounts of the notes beneficially owned by the participants. Any dealers, underwriters or agents participating in the distribution of the notes will designate the accounts to be credited. Ownership of beneficial interests in a registered global note will be shown on, and the transfer of ownership interests will be effected only through, records maintained by the depositary, with respect to interests of participants, and on the records of participants, with respect to interests of persons holding through participants.

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So long as the depositary, or its nominee, is the registered owner of a registered global note, that depositary or its nominee, as the case may be, will be considered the sole owner or holder of the notes represented by the registered global note for all purposes under the indenture. Except as described below, owners of beneficial interests in a registered global note will not be entitled to have the notes represented by the registered global note registered in their names, will not receive or be entitled to receive physical delivery of the notes in definitive form and will not be considered the owners or holders of the notes under the indenture. Accordingly, each person owning a beneficial interest in a registered global note must rely on the procedures of the depositary for that registered global note and, if that person is not a participant, on the procedures of the participant through which the person owns its interest, to exercise any rights of a holder under the indenture. The laws of some states may require that some purchasers of notes take physical delivery of these notes in definitive form. Such laws may impair the ability to transfer beneficial interests in a global note.

To facilitate subsequent transfers, all notes deposited by participants with DTC will be registered in the name of DTC’s nominee, Cede & Co. The deposit of the notes with DTC and their registration in the name of Cede & Co. effect no change in beneficial ownership. DTC will have no knowledge of the actual beneficial owners of the notes. DTC’s records reflect only the identity of the direct participants to whose accounts such notes are credited, which may or may not be the beneficial owners. The participants will remain responsible for keeping account of their holdings on behalf of their customers.

Atlassian will make payments due on the notes to Cede & Co., as nominee of DTC, in immediately available funds. DTC’s practice upon receipt of any payment of principal, premium, interest or other distribution of underlying securities or other property to holders on that registered global note, is to immediately credit participants’ accounts in amounts proportionate to their respective beneficial interests in that registered global note as shown on the records of the depositary. Payments by participants to owners of beneficial interests in a registered global note held through participants will be governed by standing customer instructions and customary practices, as is now the case with the securities held for the accounts of customers in bearer form or registered in “street name,” and will be the responsibility of those participants. Payment to Cede & Co. is the responsibility of Atlassian. Disbursement of such payments to direct participants is the responsibility of Cede & Co. Disbursement of such payments to the beneficial owners is the responsibility of direct and indirect participants. None of Atlassian, the underwriters of this offering, the trustee or any other agent of ours or any agent of the trustee will have any responsibility or liability for any aspect of the records relating to payments made on account of beneficial ownership interests in the registered global note or for maintaining, supervising or reviewing any records relating to those beneficial ownership interests.

Transfers between participants in Euroclear and Clearstream will be effected in the ordinary way in accordance with their respective rules and operating procedures. If a holder requires physical delivery of a definitive note for any reason, including to sell notes to persons in jurisdictions that require such delivery of such notes or to pledge such notes, such holder must transfer its interest in the relevant global note in accordance with the normal procedures of DTC and the procedures set forth in the indenture.

Cross-market transfers between DTC, on the one hand, and directly or indirectly through Euroclear or Clearstream participants, on the other, will be effected by DTC in accordance with DTC rules on behalf of Euroclear or Clearstream, as the case may be, by its respective depositary; however, such cross-market transactions will require delivery of instructions to Euroclear or Clearstream, as the case may be, by the counterparty in such system in accordance with its rules and procedures and within its established deadlines (Brussels time). Euroclear or Clearstream, as the case may be, will, if the transaction meets its settlement requirements, deliver instructions to its respective depositary to take action to effect final settlement on its behalf by delivering or receiving interests in the global note in DTC, and making or receiving payment in accordance with normal procedures for same-day funds settlement applicable to DTC. Euroclear participants and Clearstream participants may not deliver instructions directly to the depositories for Euroclear or Clearstream.

Because of the time zone differences, the securities account of a Euroclear or Clearstream participant purchasing an interest in the global note from a DTC participant will be credited during the securities settlement processing day (which must be a business day for Euroclear or Clearstream, as the case may be) immediately following the DTC settlement date, and such credit of any transaction’s interests in the global note settled during such processing day will be reported to the relevant Euroclear or Clearstream participant on such day. Cash received in Euroclear or Clearstream as a result of sales of interests in a global note by or

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through a Euroclear or Clearstream participant to a DTC participant will be received with value on the DTC settlement date, but will be available in the relevant Euroclear or Clearstream cash account only as of the business day following settlement in DTC.

Atlassian expects that DTC will take any action permitted to be taken by a holder of notes only at the direction of one or more participants to whose account the DTC interests in a global note are credited and only in respect of such portion of the aggregate principal amount of the notes as to which such participant or participants has or have given such direction. However, if there is an event of default under the notes, DTC will exchange each global note for definitive notes, which it will distribute to its participants.

Although Atlassian expects that DTC, Euroclear and Clearstream will agree to the foregoing procedures in order to facilitate transfers of interests in each global note among participants of DTC, Euroclear and Clearstream, DTC, Euroclear and Clearstream are under no obligation to perform or continue to perform such procedures, and such procedures may be discontinued at any time. None of Atlassian, the underwriters of this offering, the trustee or any other agent of ours or any agent of the trustee will have any responsibility for the performance by DTC, Euroclear or Clearstream or their participants or indirect participants of their respective obligations under the rules and procedures governing their operations.

If the depositary for any of the notes represented by a registered global note is at any time unwilling or unable to continue as depositary or ceases to be a clearing agency registered under the Exchange Act, and a successor depositary registered as a clearing agency under the Exchange Act is not appointed by Atlassian within 90 days, Atlassian will issue notes in definitive form in exchange for the registered global note that had been held by the depositary. Any notes issued in definitive form in exchange for a registered global note will be registered in the name or names that the depositary gives to the trustee or other relevant agent. It is expected that the depositary’s instructions will be based upon directions received by the depositary from participants with respect to ownership of beneficial interests in the registered global note that had been held by the depositary. In addition, Atlassian may at any time determine that the notes shall no longer be represented by a global note and will issue notes in definitive form in exchange for such global note pursuant to the procedure described above. In connection with any proposed exchange involving a note in definitive form, or any exchange of a note in definitive form for a global note or vice versa, there shall be provided to the trustee all information necessary to allow the trustee to comply with any applicable tax reporting obligations, including without limitation any cost basis reporting obligations under Internal Revenue Code Section 6045. The trustee may rely on information provided to it and shall have no responsibility to verify or ensure the accuracy of such information.

DTC is a limited-purpose trust company organized under the New York Banking Law, a “banking organization” within the meaning of the New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code and a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act. DTC was created to hold securities of its participants and to facilitate the clearance and settlement of securities transactions, such as transfers and pledges, among its participants in such securities through electronic computerized book-entry changes in accounts of the participants, thereby eliminating the need for physical movement of securities certificates. DTC’s participants include securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations, some of whom own DTC. Access to DTC’s book-entry system is also available to others, such as banks, brokers, dealers and trust companies that clear through or maintain a custodial relationship with a participant, either directly or indirectly. The rules applicable to DTC and its participants are on file with the SEC.

Euroclear and Clearstream hold securities for participating organizations. They also facilitate the clearance and settlement of securities transactions between their respective participants through electronic book-entry changes in the accounts of such participants. Euroclear and Clearstream provide various services to their participants, including the safekeeping, administration, clearance, settlement, lending and borrowing of internationally traded securities. Euroclear and Clearstream interface with domestic securities markets. Euroclear and Clearstream participants are financial institutions such as underwriters, securities brokers and dealers, banks, trust companies and certain other organizations.

Indirect access to Euroclear or Clearstream is also available to others such as banks, brokers, dealers and trust companies that clear through or maintain a custodial relationship with a Euroclear or Clearstream participant, either directly or indirectly.

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The information in this section concerning DTC and DTC’s book-entry system, as well as information regarding Euroclear and Clearstream, has been obtained from sources that Atlassian believes to be reliable, but Atlassian takes no responsibility for its accuracy or completeness. Atlassian assumes no responsibility for the performance by DTC, Euroclear, Clearstream or their respective participants of their respective obligations, including obligations that they have under the rules and procedures that govern their operations.

Notices

Notices to holders of certificated notes will be made by first class mail, postage prepaid, to the addresses that appear on the security register of the notes. Any notices required to be given to the holders while the notes are global notes will be given only to DTC and shall be sufficiently given if given to DTC (or its designee) pursuant to the standing instructions from DTC or its designee, including by electronic mail in accordance with its applicable procedures.

Concerning Our Relationship with the Trustee

The trustee assumes no responsibility for the accuracy or completeness of the information concerning us or our affiliates or any other party contained in this document or the related documents or for any failure by us or any other party to disclose events that may have occurred and may affect the significance or accuracy of such information. The trustee shall not be responsible for determining whether any Change of Control has occurred and whether any Change of Control Offer with respect to the notes is required. The trustee shall not be responsible for monitoring our rating status, making any request upon any Rating Agency, or determining whether any Ratings Event with respect to the notes has occurred.

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MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following discussion is a summary of the material U.S. federal income tax consequences of the purchase, ownership and disposition of the notes issued pursuant to this offering, but does not purport to be a complete analysis of all potential tax effects. The effects of other U.S. federal tax laws, such as estate and gift tax laws, and any applicable state, local or foreign tax laws are not discussed. This discussion is based on the U.S. Internal Revenue Code of 1986, as amended (the “Code”), Treasury Regulations promulgated thereunder, judicial decisions, and published rulings and administrative pronouncements of the U.S. Internal Revenue Service (the “IRS”), in each case in effect as of the date hereof. These authorities may change or be subject to differing interpretations. Any such change or differing interpretation may be applied retroactively in a manner that could adversely affect a holder of the notes. We have not sought and will not seek any rulings from the IRS regarding the matters discussed below. There can be no assurance the IRS or a court will not take a contrary position to that discussed below regarding the tax consequences of the purchase, ownership and disposition of the notes.

This discussion is limited to holders who hold the notes as “capital assets” within the meaning of Section 1221 of the Code (generally, property held for investment). In addition, this discussion is limited to persons purchasing the notes for cash at original issue and at their original “issue price” within the meaning of Section 1273 of the Code (i.e., the first price at which a substantial amount of the notes is sold to the public for cash). This discussion does not address all U.S. federal income tax consequences relevant to a holder’s particular circumstances, including the impact of the Medicare contribution tax on net investment income, or the alternative minimum tax. In addition, it does not address consequences relevant to holders subject to special rules, including, without limitation:

•

U.S. expatriates and former citizens or long-term residents of the United States;

•

U.S. Holders (as defined below) whose functional currency is not the U.S. dollar;

•

persons holding the notes as part of a hedge, straddle or other risk reduction strategy or as part of a conversion transaction or other integrated investment;

•

banks, insurance companies, and other financial institutions;

•

real estate investment trusts or regulated investment companies;

•

brokers, dealers or traders in securities;

•

“controlled foreign corporations,” “passive foreign investment companies,” and corporations that accumulate earnings to avoid U.S. federal income tax;

•

S corporations, partnerships or other entities or arrangements treated as partnerships for U.S. federal income tax purposes (and investors therein);

•

tax-exempt organizations or governmental organizations;

•

persons deemed to sell the notes under the constructive sale provisions of the Code; and

•

persons subject to special tax accounting rules as a result of any item of gross income with respect to the notes being taken into account in an “applicable financial statement” (as defined in the Code).

If an entity treated as a partnership for U.S. federal income tax purposes holds the notes, the tax treatment of a partner in the partnership will depend on the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, partnerships holding the notes and the partners in such partnerships should consult their tax advisors regarding the U.S. federal income tax consequences to them.

THIS DISCUSSION IS FOR INFORMATION PURPOSES ONLY AND IS NOT TAX ADVICE. INVESTORS SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE APPLICATION OF THE U.S. FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF THE NOTES ARISING UNDER THE U.S. FEDERAL ESTATE OR GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR NON-U.S. TAXING JURISDICTION OR UNDER ANY APPLICABLE INCOME TAX TREATY.

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Tax Considerations Applicable to U.S. Holders

Definition of a U.S. Holder

For purposes of this discussion, a “U.S. Holder” is a beneficial owner of a note that, for U.S. federal income tax purposes, is or is treated as:

•

an individual who is a citizen or resident of the United States;

•

a corporation created or organized under the laws of the United States, any state thereof or the District of Columbia;

•

an estate, the income of which is subject to U.S. federal income tax regardless of its source; or

•

a trust that (1) is subject to the primary supervision of a U.S. court and the control of one or more “United States persons” (within the meaning of Section 7701(a)(30) of the Code), or (2) has a valid election in effect to be treated as a United States person for U.S. federal income tax purposes.

Payments of Interest

Interest on a note generally will be taxable to a U.S. Holder as ordinary income at the time such interest is received or accrued, in accordance with such U.S. Holder’s method of tax accounting for U.S. federal income tax purposes. It is expected, and this discussion assumes, that the notes will be issued without original issue discount for U.S. federal income tax purposes.

Sale or Other Taxable Disposition

A U.S. Holder will recognize gain or loss on the sale, exchange, redemption, retirement or other taxable disposition of a note. The amount of such gain or loss will generally equal the difference between the amount received for the note in cash or other property valued at fair market value (less amounts attributable to any accrued but unpaid interest, which will be taxable as interest to the extent not previously included in income) and the U.S. Holder’s adjusted tax basis in the note. A U.S. Holder’s adjusted tax basis in a note generally will be equal to the amount the U.S. Holder paid for the note decreased by any payment on the note other than a payment of stated interest. Any gain or loss will be capital gain or loss, and will be long-term capital gain or loss if the U.S. Holder has held the note for more than one year at the time of sale or other taxable disposition. Otherwise, such gain or loss will be short-term capital gain or loss. Long-term capital gains recognized by certain non-corporate U.S. Holders, including individuals, generally will be taxable at a reduced rate. The deductibility of capital losses is subject to limitations.

Information Reporting and Backup Withholding

A U.S. Holder may be subject to information reporting and backup withholding when such holder receives payments on a note or receives proceeds from the sale or other taxable disposition of a note (including a redemption or retirement of a note). Certain U.S. Holders are exempt from backup withholding, including corporations and certain tax-exempt organizations. A U.S. Holder will be subject to backup withholding if such holder is not otherwise exempt and:

•

the holder fails to furnish the holder’s taxpayer identification number, which for an individual is ordinarily his or her social security number;

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the holder furnishes an incorrect taxpayer identification number;

•

the applicable withholding agent is notified by the IRS that the holder previously failed to properly report payments of interest or dividends; or

•

the holder fails to certify under penalties of perjury that the holder has furnished a correct taxpayer identification number and that the IRS has not notified the holder that the holder is subject to backup withholding.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit against a U.S. Holder’s U.S. federal income tax liability, provided the

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required information is timely furnished to the IRS. U.S. Holders should consult their tax advisors regarding their qualification for an exemption from backup withholding and the procedures for obtaining such an exemption.

Tax Considerations Applicable to Non-U.S. Holders

Definition of a Non-U.S. Holder

For purposes of this discussion, a “Non-U.S. Holder” is a beneficial owner of a note that is neither a U.S. Holder nor an entity treated as a partnership for U.S. federal income tax purposes.

Payments of Interest

Interest paid on a note to a Non-U.S. Holder that is not effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States generally will not be subject to U.S. federal income tax, or withholding tax of 30% (or such lower rate specified by an applicable income tax treaty), provided that:

•

the Non-U.S. Holder does not, actually or constructively, own 10% or more of the total combined voting power of all classes of our voting stock;

•

the Non-U.S. Holder is not a controlled foreign corporation related to us through actual or constructive stock ownership;

•

the Non-U.S. Holder is not a bank whose receipt of interest on the notes is described in Section 881(c)(3)(A) of the Code; and

•

either (1) the Non-U.S. Holder certifies in a statement provided to the applicable withholding agent under penalties of perjury that it is not a United States person and provides its name and address; (2) a securities clearing organization, bank or other financial institution that holds customers’ securities in the ordinary course of its trade or business and holds the note on behalf of the Non-U.S. Holder certifies to the applicable withholding agent under penalties of perjury that it, or the financial institution between it and the Non-U.S. Holder, has received from the Non-U.S. Holder a statement under penalties of perjury that such holder is not a United States person and provides a copy of such statement to the applicable withholding agent; or (3) the Non-U.S. Holder holds its note directly through a “qualified intermediary” (within the meaning of applicable Treasury Regulations) and certain conditions are satisfied.

If a Non-U.S. Holder does not satisfy the requirements above, such Non-U.S. Holder may be entitled to a reduction in or an exemption from withholding on such interest as a result of an applicable tax treaty. To claim such entitlement, the Non-U.S. Holder must provide the applicable withholding agent with a properly executed IRS Form W-8BEN or W-8BEN-E (or other applicable documentation) claiming a reduction in or exemption from withholding tax under the benefit of an income tax treaty between the United States and the country in which the Non-U.S. Holder resides or is established.

If interest paid to a Non-U.S. Holder is effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, the Non-U.S. Holder maintains a permanent establishment or fixed base in the United States to which such interest is attributable), the Non-U.S. Holder will be exempt from the U.S. federal withholding tax described above. To claim the exemption, the Non-U.S. Holder must furnish to the applicable withholding agent a valid IRS Form W-8ECI, certifying that interest paid on a note is not subject to withholding tax because it is effectively connected with the conduct by the Non-U.S. Holder of a trade or business within the United States.

Any such effectively connected interest generally will be subject to U.S. federal income tax at the regular rates. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected interest, as adjusted for certain items.

The certifications described above must be provided to the applicable withholding agent prior to the payment of interest and must be updated periodically. Non-U.S. Holders that do not timely provide the applicable withholding agent with the required certification, but that qualify for a reduced rate under an

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applicable income tax treaty, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS. Non-U.S. Holders should consult their tax advisors regarding their entitlement to benefits under any applicable income tax treaty.

Sale or Other Taxable Disposition

A Non-U.S. Holder will not be subject to U.S. federal income tax on any gain realized upon the sale, exchange, redemption, retirement or other taxable disposition of a note (such amount excludes any amount allocable to accrued and unpaid interest, which generally will be treated as interest and may be subject to the rules discussed above in “Tax Considerations Applicable to Non-U.S. Holders—Payments of Interest”) unless:

•

the gain is effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States (and, if required by an applicable income tax treaty, the Non-U.S. Holder maintains a permanent establishment or fixed base in the United States to which such gain is attributable); or

•

the Non-U.S. Holder is a nonresident alien individual present in the United States for 183 days or more during the taxable year of the disposition and certain other requirements are met.

Gain described in the first bullet point above generally will be subject to U.S. federal income tax on a net income basis at the regular rates. A Non-U.S. Holder that is a corporation also may be subject to a branch profits tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on such effectively connected gain, as adjusted for certain items.

A Non-U.S. Holder described in the second bullet point above will be subject to U.S. federal income tax at a rate of 30% (or such lower rate specified by an applicable income tax treaty) on gain realized upon the sale or other taxable disposition of a note, which may be offset by U.S. source capital losses of the Non-U.S. Holder (even though the individual is not considered a resident of the United States), provided the Non-U.S. Holder has timely filed U.S. federal income tax returns with respect to such losses.

Non-U.S. Holders should consult their tax advisors regarding any applicable income tax treaties that may provide for different rules.

Information Reporting and Backup Withholding

Payments of interest generally will not be subject to backup withholding, provided the applicable withholding agent does not have actual knowledge or reason to know the holder is a United States person as defined in Section 7701(a)(30) of the Code and the holder certifies its non-U.S. status as described above under “Tax Considerations Applicable to Non-U.S. Holders—Payments of Interest.” However, information returns are required to be filed with the IRS in connection with any interest paid to the Non-U.S. Holder, regardless of whether any tax was actually withheld. In addition, proceeds of the sale or other taxable disposition of a note (including a retirement or redemption of the note) within the United States or conducted through certain U.S.-related brokers generally will not be subject to backup withholding or information reporting, if the applicable withholding agent receives the statement described above and does not have actual knowledge or reason to know that such holder is a United States person as defined in Section 7701(a)(30) of the Code or the holder otherwise establishes an exemption. Proceeds of a disposition of a note paid outside the United States and conducted through a non-U.S. office of a non-U.S. broker generally will not be subject to backup withholding or information reporting.

Copies of information returns that are filed with the IRS may also be made available under the provisions of an applicable treaty or agreement to the tax authorities of the country in which the Non-U.S. Holder resides or is established.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules may be allowed as a refund or a credit against a Non-U.S. Holder’s U.S. federal income tax liability, provided the required information is timely furnished to the IRS.

Additional Withholding Tax on Payments Made to Foreign Accounts

Withholding taxes may be imposed under Sections 1471 to 1474 of the Code (such Sections commonly referred to as the Foreign Account Tax Compliance Act, or “FATCA”) on certain types of payments made to

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non-U.S. financial institutions and certain other non-U.S. entities. Specifically, a 30% withholding tax may be imposed on payments of interest on, or (subject to the proposed Treasury Regulations discussed below) gross proceeds from the sale or other disposition of, a note paid to a “foreign financial institution” or a “non-financial foreign entity” (each as defined in the Code), unless (1) the foreign financial institution undertakes certain diligence and reporting obligations, (2) the non-financial foreign entity either certifies it does not have any “substantial United States owners” (as defined in the Code) or furnishes identifying information regarding each substantial United States owner, or (3) the foreign financial institution or non-financial foreign entity otherwise qualifies for an exemption from these rules. If the payee is a foreign financial institution and is subject to the diligence and reporting requirements in clause (1) above, it must enter into an agreement with the U.S. Department of the Treasury requiring, among other things, that it undertake to identify accounts held by certain “specified United States persons” or “United States owned foreign entities” (each as defined in the Code), annually report certain information about such accounts, and withhold 30% on certain payments to non-compliant foreign financial institutions and certain other account holders. Foreign financial institutions located in jurisdictions that have an intergovernmental agreement with the United States governing FATCA may be subject to different rules.

Under the applicable Treasury Regulations and administrative guidance, withholding under FATCA generally applies to payments of interest on a note. While withholding under FATCA would have applied also to payments of gross proceeds from the sale or other disposition of a note on or after January 1, 2019, proposed Treasury Regulations eliminate FATCA withholding on payments of gross proceeds entirely. Taxpayers generally may rely on these proposed Treasury Regulations until final Treasury Regulations are issued.

Prospective investors should consult their tax advisors regarding the potential application of withholding under FATCA to their investment in the notes.

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UNDERWRITING

BofA Securities, Inc., Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC are acting as representatives of each of the underwriters named below. Subject to the terms and conditions set forth in a firm commitment underwriting agreement among us and the underwriters, we have agreed to sell to the underwriters, and each of the underwriters has agreed, severally and not jointly, to purchase from us, the principal amount of notes set forth opposite its name below.

Underwriter	Principal Amount of 20 Notes		Principal Amount of 20 Notes
BofA Securities, Inc.		$
Goldman Sachs & Co. LLC
Morgan Stanley & Co. LLC
Total		$

Subject to the terms and conditions set forth in the underwriting agreement, the underwriters have agreed, severally and not jointly, to purchase all of the notes sold under the underwriting agreement if any of these notes are purchased. If an underwriter defaults, the underwriting agreement provides that the purchase commitments of the nondefaulting underwriters may be increased or the underwriting agreement may be terminated.

We have agreed to indemnify the underwriters and their controlling persons against certain liabilities in connection with this offering, including liabilities under the Securities Act, or to contribute to payments the underwriters may be required to make in respect of those liabilities.

The underwriters are offering the notes, subject to prior sale, when, as and if issued to and accepted by them, subject to approval of legal matters by their counsel, including the validity of the notes, and other conditions contained in the underwriting agreement, such as the receipt by the underwriters of officer’s certificates and legal opinions. The underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part.

Commissions and Discounts

The representatives have advised us that the underwriters propose initially to offer the notes to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at such price less a concession not in excess of % of the principal amount of the 20 notes and % of the principal amount of the 20 notes. After the initial offering, the public offering price, concession or any other term of the offering may be changed.

The expenses of the offering, not including the underwriting discount, are estimated at $ and are payable by us.

New Issue of Notes

The notes are a new issue of securities with no established trading market. We do not intend to apply for listing of the notes on any national securities exchange or for inclusion of the notes on any automated dealer quotation system. We have been advised by the underwriters that they presently intend to make a market in the notes after completion of the offering. However, they are under no obligation to do so and may discontinue any market-making activities at any time without any notice. We cannot assure the liquidity of the trading market for the notes or that an active public market for the notes will develop. If an active public trading market for the notes does not develop, the market price and liquidity of the notes may be adversely affected. If the notes are traded, they may trade at a discount from their initial offering price, depending on prevailing interest rates, the market for similar securities, our operating performance and financial condition, general economic conditions and other factors.

Extended Settlement

We expect that delivery of the notes will be made to investors on or about , 20 , which will be the business day following the date of this prospectus supplement (such settlement being referred to as

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“T+ ”). Under Rule 15c6-1 under the Securities Exchange Act of 1934, trades in the secondary market are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade notes prior to the delivery of the notes hereunder will be required, by virtue of the fact that the notes initially settle in T+ , to specify an alternate settlement arrangement at the time of any such trade to prevent a failed settlement. Purchasers of the notes who wish to trade the notes prior to their date of delivery hereunder should consult their advisors.

No Sales of Similar Securities

We have agreed that we will not, for the period extending from the date of this prospectus supplement through the closing date of this offering, without first obtaining the prior written consent of the representatives, directly or indirectly, issue, sell, offer to contract or grant any option to sell, pledge, transfer or otherwise dispose of, any debt securities or securities exchangeable for or convertible into debt securities, except for the notes sold to the underwriters pursuant to the underwriting agreement.

Short Positions

In connection with the offering, the underwriters may purchase and sell the notes in the open market. These transactions may include short sales and purchases on the open market to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater principal amount of notes than they are required to purchase in the offering. The underwriters must close out any short position by purchasing notes in the open market. A short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of the notes in the open market after pricing that could adversely affect investors who purchase in the offering.

Similar to other purchase transactions, the underwriters’ purchases to cover the syndicate short sales may have the effect of raising or maintaining the market price of the notes or preventing or retarding a decline in the market price of the notes. As a result, the price of the notes may be higher than the price that might otherwise exist in the open market.

Neither we nor any of the underwriters make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of the notes. In addition, neither we nor any of the underwriters make any representation that the representatives will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.

Conflict of Interest

Other Relationships

Some of the underwriters and their affiliates have engaged in, and may in the future engage in, investment banking and other commercial dealings in the ordinary course of business with us or our affiliates. They have received, or may in the future receive, customary fees and commissions for these transactions.

In addition, in the ordinary course of their business activities, the underwriters and their affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of

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their customers. Such investments and securities activities may involve securities and/or instruments of ours or our affiliates. Certain of the underwriters or their affiliates that have a lending relationship with us routinely hedge their credit exposure to us consistent with their customary risk management policies. Typically, such underwriters and their affiliates would hedge such exposure by entering into transactions which consist of either the purchase of credit default swaps or the creation of short positions in our securities, including potentially the notes offered hereby. Any such short positions could adversely affect future trading prices of the notes offered hereby. The underwriters and their affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or financial instruments and may hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

Selling Restrictions

Other than in the United States, to the best of our knowledge, no action has been taken by us or the underwriters that would permit a public offering of the notes in any jurisdiction where action for that purpose is required. The notes may not be offered or sold, directly or indirectly, nor may this prospectus supplement or any other offering material or advertisements in connection with the offer and sale of any such notes be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons into whose possession this prospectus supplement comes are advised to inform themselves about and to observe any restrictions relating to the offering of the notes and the distribution of this prospectus supplement. This prospectus supplement does not constitute an offer to sell or a solicitation of an offer to buy any notes offered by this prospectus supplement in any jurisdiction in which such an offer or a solicitation is unlawful.

Sales of the notes in the United States by any underwriter that is not a broker-dealer registered with the SEC will be made only through one or more SEC-registered broker-dealers in compliance with applicable securities laws and the rules of the Financial Industry Regulatory Authority, Inc.

Australia

This prospectus supplement and the accompanying prospectus:

•

does not constitute a product disclosure document or a prospectus under Chapter 6D.2 of the Corporations Act 2001 (Cth) (the “Corporations Act”);

•

has not been, and will not be, lodged with the Australian Securities and Investments Commission (“ASIC”), as a disclosure document for the purposes of the Corporations Act and does not purport to include the information required of a disclosure document under Chapter 6D.2 of the Corporations Act;

•

does not constitute or involve a recommendation to acquire, an offer or invitation for issue or sale, an offer or invitation to arrange the issue or sale, or an issue or sale, of interests to a “retail client” (as defined in section 761G of the Corporations Act and applicable regulations) in Australia; and

•

may only be provided in Australia to select investors who are able to demonstrate that they fall within one or more of the categories of investors, or Exempt Investors, available under section 708 of the Corporations Act.

The notes may not be directly or indirectly offered for subscription or purchased or sold, and no invitations to subscribe for or buy the notes may be issued, and neither this prospectus supplement, nor any advertisements or other offering material relating to any notes may be distributed in Australia, except where disclosure to investors is not required under Chapter 6D of the Corporations Act or is otherwise in compliance with all applicable Australian laws and regulations. By submitting an application for the notes, you represent and warrant to us that you are an Exempt Investor.

As any offer of notes under this document will be made without disclosure in Australia under Chapter 6D.2 of the Corporations Act, the offer of those securities for resale in Australia within 12 months may, under section 707 of the Corporations Act, require disclosure to investors under Chapter 6D.2 if none of the exemptions in section 708 applies to that resale. By applying for the notes you undertake to us that you will not, for a period of 12 months from the date of issue of the notes, offer, transfer, assign or otherwise alienate

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those securities to investors in Australia except in circumstances where disclosure to investors is not required under Chapter 6D.2 of the Corporations Act or where a compliant disclosure document is prepared and lodged with ASIC.

Canada

The notes may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement and accompanying prospectus (including any amendment hereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 (or, in the case of securities issued or guaranteed by the government of a non-Canadian jurisdiction, section 3A.4) of National Instrument 33-105 Underwriting Conflicts (“NI 33-105”), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

Dubai International Financial Centre (DIFC)

This document relates to an Exempt Offer in accordance with the Markets Rules 2012 of the Dubai Financial Services Authority (“DFSA”). This document is intended for distribution only to persons of a type specified in the Markets Rules 2012 of the DFSA. It must not be delivered to, or relied on by, any other person. The DFSA has no responsibility for reviewing or verifying any documents in connection with Exempt Offers. The DFSA has not approved this prospectus supplement nor taken steps to verify the information set forth herein and has no responsibility for this document. The securities to which this document relates may be illiquid and/or subject to restrictions on their resale. Prospective purchasers of the securities offered should conduct their own due diligence on the securities. If you do not understand the contents of this document you should consult an authorized financial advisor.

In relation to its use in the DIFC, this document is strictly private and confidential and is being distributed to a limited number of investors and must not be provided to any person other than the original recipient, and may not be reproduced or used for any other purpose. The interests in the securities may not be offered or sold directly or indirectly to the public in the DIFC.

European Economic Area

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (“EEA”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97 (as amended, the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not a qualified investor as defined in Regulation (EU) 2017/1129 (the “Prospectus Regulation”). Consequently no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation.

Hong Kong

No notes may be offered or sold in Hong Kong, by means of any document, other than: (i) to “professional investors” (as defined in the Securities and Futures Ordinance (Cap. 571) of Hong Kong (the

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“SFO”)) and any rules made thereunder; or (ii) in other circumstances which do not result in the document being a “prospectus” (as defined in the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32) of Hong Kong) or which do not constitute an offer to the public within the meaning of that Ordinance. No advertisement, invitation or document relating to the notes, which is directed at, or the contents of which are likely to be accessed or read by, the public of Hong Kong (except if permitted to do so under the securities laws of Hong Kong) has been or will be issued other than with respect to the notes which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” (as defined in the SFO) and any rules made thereunder.

Japan

The notes have not been and will not be registered under the Financial Instruments and Exchange Law of Japan (the “Financial Instruments and Exchange Law”) and each underwriter has represented and agreed that it will not offer or sell any notes, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to others for reoffering or resale, directly or indirectly, in Japan or to a resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the Financial Instruments and Exchange Law and any other applicable laws, regulations and ministerial guidelines of Japan.

Singapore

This prospectus supplement has not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, the underwriters have not offered or sold any notes or caused the notes to be made the subject of an invitation for subscription or purchase and will not offer or sell any notes or cause the notes to be made the subject of an invitation for subscription or purchase, and have not circulated or distributed, nor will they circulate or distribute, this prospectus supplement or any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the notes, whether directly or indirectly, to any person in Singapore other than (i) to an institutional investor (as defined in Section 4A of the Securities and Futures Act 2001 of Singapore, as modified or amended from time to time (the “SFA”)) pursuant to Section 274 of the SFA or (ii) to an accredited investor (as defined in Section 4A of the SFA) pursuant to and in accordance with the conditions specified in Section 275 of the SFA.

Switzerland

This prospectus supplement and the accompanying prospectus are not intended to constitute an offer or solicitation to purchase or invest in the notes. The notes may not be publicly offered, directly or indirectly, in Switzerland within the meaning of the Swiss Financial Services Act (“FinSA”), and no application has or will be made to admit the notes to trading on any trading venue (exchange or multilateral trading facility) in Switzerland. Neither this prospectus supplement, the accompanying prospectus nor any other offering or marketing material relating to the notes constitutes a prospectus pursuant to the FinSA, and neither this prospectus supplement, the accompanying prospectus, nor any other offering or marketing material relating to the notes may be publicly distributed or otherwise made publicly available in Switzerland.

Taiwan

The notes have not been and will not be registered with the Financial Supervisory Commission of Taiwan, the Republic of China (“Taiwan”), pursuant to relevant securities laws and regulations and may not be offered or sold in Taiwan through a public offering or in any manner which would constitute an offer within the meaning of the Securities and Exchange Act of Taiwan or would otherwise require registration with or the approval of the Financial Supervisory Commission of Taiwan. No person or entity in Taiwan has been authorized to offer, sell, give advice regarding or otherwise intermediate the offering or sale of the notes in Taiwan.

United Arab Emirates

The notes have not been, and are not being, publicly offered, sold, promoted or advertised in the United Arab Emirates (including the Dubai International Financial Centre) other than in compliance with the laws of

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the United Arab Emirates (and the Dubai International Financial Centre) governing the issue, offering and sale of securities. Further, this prospectus does not constitute a public offer of securities in the United Arab Emirates (including the Dubai International Financial Centre) and is not intended to be a public offer. This prospectus has not been approved by or filed with the Central Bank of the United Arab Emirates, the Securities and Commodities Authority or the Dubai Financial Services Authority.

Prohibition of Sales to United Kingdom Retail Investors

The notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom (“UK”). For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018 (“EUWA”); (ii) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 (“FSMA”) and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of domestic law by virtue of the EUWA; or (iii) not a qualified investor as defined in Article 2 of Regulation (EU) 2017/1129 as it forms part of domestic law by virtue of the EUWA. Consequently no key information document required by Regulation (EU) No 1286/2014 as it forms part of domestic law by virtue of the EUWA (the “UK PRIIPs Regulation”) for offering or selling the notes or otherwise making them available to retail investors in the UK has been prepared and therefore offering or selling the notes or otherwise making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation.

Notice to Prospective Investors in the United Kingdom

In addition, in the UK, this prospectus supplement and the accompanying prospectus is being distributed only to, and is directed only at qualified investors within the meaning of Article 2 of the UK Prospectus Regulation who are, (i) persons who have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended, the “Order”), and/or (ii) high net worth companies (or persons to whom it may otherwise be lawfully communicated) falling within Article 49(2)(a) to (d) of the Order, which persons together we refer to in this prospectus supplement as “relevant persons.” Accordingly, such documents and/or materials are not being distributed to, and must not be passed on to, the general public in the UK. This prospectus supplement and the accompanying prospectus must not be acted on or relied on in the UK by persons who are not relevant persons. In the UK, any investment or investment activity to which this prospectus supplement and the Rider accompanying prospectus relates is only available to, and will be engaged in with, relevant persons only.

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LEGAL MATTERS

Certain legal matters as to the validity of the notes will be passed upon by Latham & Watkins LLP. Davis Polk & Wardwell LLP, New York, New York, are acting as counsel to the underwriters in connection with this offering.

EXPERTS

Ernst & Young LLP, independent registered public accounting firm, has audited Atlassian Corporation’s consolidated financial statements as of June 30, 2023 and 2022, and for each of the three years in the period ended June 30, 2023, included in its Annual Report on Form 10-K for the year ended June 30, 2023, and the effectiveness of its internal control over financial reporting as of June 30, 2023, as set forth in their reports, which are incorporated by reference in this prospectus. Atlassian Corporation’s financial statements and management’s assessment of the effectiveness of internal control over financial reporting as of June 30, 2023 are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

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PROSPECTUS

Atlassian Corporation

Class A Common Stock
Preferred Stock
Debt Securities
Warrants
Purchase Contracts
Units

We may offer and sell the securities identified above from time to time in one or more offerings. This prospectus provides you with a general description of the securities.

Each time we offer and sell securities, we will provide a supplement to this prospectus that contains specific information about the offering and the amounts, prices and terms of the securities. The supplement may also add, update or change information contained in this prospectus with respect to that offering. You should carefully read this prospectus and the applicable prospectus supplement before you invest in any of our securities.

We may offer and sell the securities described in this prospectus and any prospectus supplement to or through one or more underwriters, dealers and agents, or directly to purchasers, or through a combination of these methods. If any underwriters, dealers or agents are involved in the sale of any of the securities, their names and any applicable purchase price, fee, commission or discount arrangement between or among them will be set forth, or will be calculable from the information set forth, in the applicable prospectus supplement. See the sections of this prospectus entitled “About this Prospectus” and “Plan of Distribution” for more information. No securities may be sold without delivery of this prospectus and the applicable prospectus supplement describing the method and terms of the offering of such securities.

INVESTING IN OUR SECURITIES INVOLVES RISKS. SEE THE “RISK FACTORS” ON PAGE 6 OF THIS PROSPECTUS AND ANY SIMILAR SECTION CONTAINED IN THE APPLICABLE PROSPECTUS SUPPLEMENT CONCERNING FACTORS YOU SHOULD CONSIDER BEFORE INVESTING IN OUR SECURITIES.

Our Class A Common Stock is listed on the Nasdaq Global Select Market under the symbol “TEAM.” On May 3, 2024, the last reported sale price of our Class A Common Stock on the Nasdaq Global Select Market was $183.52 per share.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is May 6, 2024.

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	ABOUT THIS PROSPECTUS					1
	SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS					2
	WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE					3
	ATLASSIAN CORPORATION					5
	RISK FACTORS					6
	USE OF PROCEEDS					7
	DESCRIPTION OF CAPITAL STOCK					8
	DESCRIPTION OF DEBT SECURITIES					13
	DESCRIPTION OF OTHER SECURITIES					20
	GLOBAL SECURITIES					21
	PLAN OF DISTRIBUTION					25
	LEGAL MATTERS					26
	EXPERTS					26

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we filed with the U.S. Securities and Exchange Commission, (the “Commission” or the “SEC”) as a “well-known seasoned issuer” as defined in Rule 405 under the Securities Act of 1933, as amended, using a “shelf” registration process. By using a shelf registration statement, we may sell securities from time to time and in one or more offerings as described in this prospectus. Each time that we offer and sell securities, we will provide a prospectus supplement to this prospectus that contains specific information about the securities being offered and sold and the specific terms of that offering. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. The prospectus supplement or free writing prospectus may also add, update or change information contained in this prospectus with respect to that offering. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement or free writing prospectus, you should rely on the prospectus supplement or free writing prospectus, as applicable. Before purchasing any securities, you should carefully read both this prospectus and the applicable prospectus supplement (and any applicable free writing prospectuses), together with the additional information described under the heading “Where You Can Find More Information; Incorporation by Reference.”

We have not authorized anyone to provide you with any information or to make any representations other than those contained in this prospectus, any applicable prospectus supplement or any free writing prospectuses prepared by or on behalf of us or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We will not make an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and the applicable prospectus supplement to this prospectus is accurate only as of the date on its respective cover, that the information appearing in any applicable free writing prospectus is accurate only as of the date of that free writing prospectus, and that any information incorporated by reference is accurate only as of the date of the document incorporated by reference, unless we indicate otherwise. Our business, financial condition, results of operations and prospects may have changed since those dates. This prospectus incorporates by reference, and any prospectus supplement or free writing prospectus may contain and incorporate by reference, market data and industry statistics and forecasts that are based on independent industry publications and other publicly available information. Although we believe these sources are reliable, we do not guarantee the accuracy or completeness of this information and we have not independently verified this information. In addition, the market and industry data and forecasts that may be included or incorporated by reference in this prospectus, any prospectus supplement or any applicable free writing prospectus may involve estimates, assumptions and other risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risk Factors” contained in this prospectus, the applicable prospectus supplement and any applicable free writing prospectus, and under similar headings in other documents that are incorporated by reference into this prospectus. Accordingly, investors should not place undue reliance on this information.

When we refer to “Atlassian,” “we,” “our,” “us” and the “Company” in this prospectus, we mean Atlassian Corporation and its consolidated subsidiaries, unless otherwise specified. When we refer to “you,” we mean the potential holders of the applicable series of securities.

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the Private Securities Litigation Reform Act of 1995. In some cases, you can identify these statements by forward-looking words such as “may,” “will,” “expect,” “believe,” “anticipate,” “intend,” “could,” “should,” “estimate,” or “continue,” and similar expressions or variations, but these words are not the exclusive means for identifying such statements. Such forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results and the timing of certain events to differ materially from future results and timing expressed or implied by such forward-looking statements. For a discussion of factors that could cause actual results to differ from those contained in forward-looking statements, see the section entitled “Risk Factors” in this prospectus and any applicable prospectus supplement and any sections entitled “Business,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” contained in documents incorporated by reference into this prospectus or any applicable prospectus supplement.

You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements in this prospectus primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, results of operations and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties and other factors. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this prospectus. The results, events and circumstances reflected in the forward-looking statements may not be achieved or occur, and actual results, events or circumstances could differ materially from those described in the forward-looking statements.

The forward-looking statements made in this prospectus relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this prospectus to reflect events or circumstances after the date of this prospectus or to reflect new information or the occurrence of unanticipated events, except as required by law. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, or investments.

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WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE

Available Information

We file reports, proxy statements and other information with the SEC. The SEC maintains a website that contains reports, proxy and information statements and other information about issuers, such as us, who file electronically with the SEC. The address of that website is http://www.sec.gov.

Our website address is www.atlassian.com and our investor relations website is https://investors.atlassian.com. The information on or accessible through our website and our investor relations website, however, is not, and should not be deemed to be, a part of this prospectus.

This prospectus and any prospectus supplement are part of a registration statement that we filed with the SEC and do not contain all of the information in the registration statement. The full registration statement may be obtained from the SEC or us, as provided below. Forms of the indenture and other documents establishing the terms of the offered securities are or may be filed as exhibits to the registration statement or documents incorporated by reference in the registration statement. Statements in this prospectus or any prospectus supplement about these documents are summaries and each statement is qualified in all respects by reference to the document to which it refers. You should refer to the actual documents for a more complete description of the relevant matters. You may inspect a copy of the registration statement through the SEC’s website, as provided above.

Incorporation by Reference

The SEC’s rules allow us to “incorporate by reference” information into this prospectus, which means that we can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this prospectus, and subsequent information that we file with the SEC will automatically update and supersede that information. Any statement contained in this prospectus or a previously filed document incorporated by reference will be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or a subsequently filed document incorporated by reference modifies or replaces that statement.

This prospectus and any accompanying prospectus supplement incorporate by reference the documents set forth below that have previously been filed with the SEC:

•

Our Annual Report on Form 10-K for the year ended June 30, 2023, filed with the SEC on August 18, 2023.

•

Our Current Reports on Form 8-K, filed with the SEC on August 3, 2023 (with respect to Item 5.02 only), December 7, 2023 and April 25, 2024 (with respect to Item 5.02 only).

•

All reports and other documents we subsequently file pursuant to Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, which we refer to as the “Exchange Act” in this prospectus, prior to the termination of this offering, but excluding any information furnished to, rather than filed with, the SEC, will also be incorporated by reference into this prospectus and deemed to be part of this prospectus from the date of the filing of such reports and documents.

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You may request a free copy of any of the documents incorporated by reference in this prospectus by writing or telephoning us at the following address:

Atlassian Corporation
Attn: Investor Relations
350 Bush Street, Floor 13
San Francisco, California 94104
(415) 701-1110

Exhibits to the filings will not be sent, however, unless those exhibits have specifically been incorporated by reference in this prospectus or any accompanying prospectus supplement.

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ATLASSIAN CORPORATION

Overview

Our mission is to unleash the potential of every team.

Our products help teams plan, track and execute shared work — delivering superior outcomes for their organizations.

Corporate Information

Our principal executive offices are located at 350 Bush Street, Floor 13, San Francisco, California 94104, and our telephone number is (415) 701-1110. Our corporate website address is www.atlassian.com and our investor relations website is https://investors.atlassian.com. Information contained on, or accessible through, our website and our investor relations website shall not be deemed incorporated into and is not a part of this prospectus or the registration statement of which it forms a part. We have included our website and our investor relations website in this prospectus solely as an inactive textual reference.

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RISK FACTORS

Investment in any securities offered pursuant to this prospectus and the applicable prospectus supplement involves risks. Before deciding whether to invest in our securities, you should carefully consider the risk factors incorporated by reference to our most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K we file after the date of this prospectus, and all other information contained or incorporated by reference into this prospectus, as updated by our subsequent filings under the Exchange Act, and the risk factors and other information contained in the applicable prospectus supplement and any applicable free writing prospectus. The occurrence of any of these risks might cause you to lose all or part of your investment in the offered securities. There may be other unknown or unpredictable economic, business, competitive, regulatory or other factors that could have material adverse effects on our future results. Past financial performance may not be a reliable indicator of future performance, and historical trends should not be used to anticipate results or trends in future periods. If any of these risks actually occurs, our business, financial condition, results of operations or cash flow could be seriously harmed. This could cause the trading price of our securities to decline, resulting in a loss of all or part of your investment. Please also carefully read the section entitled “Special Note Regarding Forward-Looking Statements” included in this prospectus and the section entitled “Forward-Looking Statements” included in our most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K.

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USE OF PROCEEDS

We intend to use the net proceeds from the sale of the securities as set forth in the applicable prospectus supplement.

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DESCRIPTION OF CAPITAL STOCK

The following description of our capital stock is not complete and may not contain all the information you should consider before investing in our capital stock. This description is summarized from, and qualified in its entirety by reference to, our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws, which have been publicly filed with the SEC. See “Where You Can Find More Information; Incorporation by Reference.”

Our authorized capital stock consists of:

•

750,000,000 shares of Class A Common Stock, par value $0.00001 per share;

•

230,000,000 shares of Class B Common Stock, par value $0.00001 per share; and

•

10,000,000 shares of preferred stock, par value $0.00001 per share.

Common Stock

Atlassian has two classes of authorized common stock: Class A Common Stock and Class B Common Stock. Only Atlassian’s Class A Common Stock is registered under Section 12 of the Exchange Act, and trades on the Nasdaq Global Select Market under the ticker symbol “TEAM.”

Voting Rights

Shares of Atlassian Class A Common Stock are entitled to one vote per share and shares of Atlassian Class B Common Stock are entitled to ten votes per share. The holders of Atlassian Class A Common Stock and the holders of Atlassian Class B Common Stock generally vote together as a single class on all matters submitted to a vote of Atlassian stockholders, unless otherwise required by Delaware law or our Amended and Restated Certificate of Incorporation. Delaware law could require either holders of Atlassian Class A Common Stock or holders of Atlassian Class B Common Stock to vote separately in the following circumstances:

•

if Atlassian were to seek to amend its Amended and Restated Certificate of Incorporation to increase or decrease the par value of a class of its capital stock, then that class would be required to vote separately to approve the proposed amendment;

•

if Atlassian were to seek to amend its Amended and Restated Certificate of Incorporation to increase or decrease the aggregate number of authorized shares of Atlassian Class B common Stock; and

•

if Atlassian were to seek to amend its Amended and Restated Certificate of Incorporation in a manner that alters or changes the powers, preferences, or special rights of a class of its capital stock in a manner that would affect its holders adversely, then that class would be required to vote separately to approve the proposed amendment.

Stockholders are not entitled to cumulative voting for the election of directors. As a result, the holders of a majority of Atlassian’s voting power are able to elect all of the directors then standing for election. A holder of shares of Atlassian Class B Common Stock (together with its permitted transferees) is not entitled to exercise voting rights in Atlassian in excess of 49.9999%, unless the Atlassian board of directors resolves otherwise.

Conversion Rights

Each outstanding share of Atlassian Class B Common Stock will be convertible at any time at the option of the holder into one share of Atlassian Class A Common Stock. Each share of Atlassian Class B Common Stock will convert automatically into one share of Atlassian Class A Common Stock in the following circumstances:

•

upon the written consent of the holders of at least 66.66% of the total number of outstanding shares of Atlassian Class B Common Stock;

•

if the aggregate number of shares of Atlassian Class B Common Stock then outstanding comprises less than ten percent (10%) of the total number of shares of Atlassian Class A Common Stock and Atlassian Class B Common Stock then outstanding; and

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•

upon any transfer to a person that is not a permitted transferee described in the Amended and Restated Certificate of Incorporation.

Once converted into shares of Atlassian Class A Common Stock, the Atlassian Class B Common Stock may not be reissued.

Dividends

Any dividend or distribution paid or payable to the holders of shares of Atlassian Class A Common Stock and Atlassian Class B Common Stock shall be paid pro rata, on an equal priority, pari passu basis, unless different treatment of the shares of each such class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class A Common Stock and by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class B Common Stock, each voting separately as a class.

Liquidation

In the event of Atlassian’s liquidation, dissolution or winding up, Atlassian’s remaining assets legally available for distribution to stockholders shall be distributed ratably on a per share basis to the holders of shares of Atlassian Class A Common Stock and Atlassian Class B Common Stock, unless disparate or different treatment of the shares of each such class is approved by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class A Common Stock and by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class B Common Stock, each voting separately as a class. These provisions will also apply in the event of certain mergers, consolidations, business combination or other similar change in control transactions, unless the Atlassian board of directors determines otherwise.

Subdivisions and Combinations

If Atlassian subdivides, combines or reclassifies outstanding shares of Atlassian Class A Common Stock or Atlassian Class B Common Stock, then the outstanding shares of the other class will be subdivided, combined or reclassified in a manner that maintains the same proportionate equity ownership between the shares of Atlassian Class A Common Stock and the Atlassian Class B Common Stock, unless different treatment of the shares of each such class is approved in advance by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class A Common Stock and by the affirmative vote of the holders of a majority of the outstanding shares of Atlassian Class B Common Stock, each voting separately as a class.

No Pre-Emptive or Similar Rights

Holders of shares of Atlassian common stock have no preemptive, subscription or redemption rights. There are no redemption or sinking fund provisions applicable to Atlassian common stock.

Fully Paid and Non-Assessable

All of the outstanding shares of Atlassian Class A Common Stock and Atlassian Class B Common Stock are fully paid and non-assessable.

Preferred Stock

Our Amended and Restated Certificate of Incorporation authorizes the board of directors of Atlassian to issue preferred stock in one or more series from time to time and to determine the preferences, limitations and relative rights of any shares of preferred stock that it shall choose to issue, without vote or action by the stockholders.

Annual Stockholder Meetings

The Amended and Restated Certificate of Incorporation and the Amended and Restated Bylaws of Atlassian provide that annual stockholder meetings will be held at a date, place (if any) and time, as exclusively

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selected by the Atlassian board of directors. To the extent permitted under applicable law, Atlassian may but is not obligated to conduct meetings by remote communications, including by webcast.

Anti-Takeover Provisions

The General Corporation Law of the State of Delaware (the “DGCL”) and our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws contain provisions that may delay, defer, or discourage another party from acquiring control of Atlassian. Atlassian expects that these provisions, which are summarized below, will discourage coercive takeover practices or inadequate takeover bids. These provisions are also designed to encourage persons seeking to acquire control of Atlassian to first negotiate with Atlassian’s board of directors, which Atlassian believes may result in an improvement of the terms of any such acquisition in favor of Atlassian stockholders. However, they will also give Atlassian’s board of directors the power to discourage acquisitions that some stockholders may favor.

Delaware Anti-Takeover Statute

Atlassian is subject to Section 203 of the DGCL, which prohibits persons deemed “interested stockholders” from engaging in a “business combination” with a publicly-held Delaware corporation for three years following the date these persons become interested stockholders unless the business combination is, or the transaction in which the person became an interested stockholder was, approved in a prescribed manner or another prescribed exception applies. Generally, an “interested stockholder” is a person who, together with affiliates and associates, owns, or within three years prior to the determination of interested stockholder status did own, 15% or more of a corporation’s voting stock and a “business combination” includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to the interested stockholder. The existence of this provision may have an anti-takeover effect with respect to transactions not approved in advance by the Atlassian board of directors, such as discouraging takeover attempts that might result in a premium over the market price of the Atlassian Class A Common Stock.

Multi-Class Stock

As described above in the section titled “Common Stock — Voting Rights”, our Amended and Restated Certificate of Incorporation provides for a multi-class common stock structure, pursuant to which holders of Atlassian Class B Common Stock, including Messrs. Cannon-Brookes and Farquhar, will have the ability to control the outcome of matters requiring stockholder approval, even if such holders will own significantly less than a majority of the outstanding shares of Atlassian Class A Common Stock and Atlassian Class B Common Stock, including the election of directors and significant corporate transactions, such as a merger or other sale of Atlassian or its assets.

Undesignated Preferred Stock

The ability to authorize undesignated preferred stock will make it possible for the Atlassian board of directors to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to change control of Atlassian. These and other provisions may have the effect of deterring hostile takeovers or delaying changes in control or management of Atlassian.

Stockholder Action Special Stockholder Meetings

Our Amended and Restated Certificate of Incorporation provides that any action required or permitted to be taken by our stockholders must be effected at a duly called annual or special meeting of our stockholders and may not be effected by any consent in writing by our stockholders. Our Amended and Restated Certificate of Incorporation further provides that special meetings of our stockholders may be called only by a majority of Atlassian’s board of directors, the Chair of the board of directors or one of Atlassian’s Co-Chief Executive Officers thus prohibiting a stockholder from calling a special meeting. These provisions might delay the ability of Atlassian stockholders to force consideration of a proposal or for stockholders to take any action, including the removal of directors.

Advance Notice Requirements for Stockholder Proposals and Director Nominations

Our Amended and Restated Bylaws provide advance notice procedures for stockholders seeking to bring business before Atlassian’s annual meeting of stockholders or to nominate candidates for election as directors

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at Atlassian’s annual meeting of stockholders. Our Amended and Restated Bylaws also specify certain requirements regarding the form and content of a stockholder’s notice. These provisions might preclude Atlassian stockholders from bringing matters before the annual meeting of stockholders or from making nominations for directors at the annual meeting of stockholders if the proper procedures are not followed. Atlassian expects that these provisions might also discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of Atlassian.

Supermajority Requirements for Certain Amendments of Our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws

Certain amendments to our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws require the approval of 66 2/3% of the outstanding voting power of Atlassian’s capital stock.

Composition of the Board of Directors; Election and Removal of Directors; Filling Vacancies

The Atlassian board of directors fix the number of directors which will constitute the whole board. In any uncontested elections of directors, a director nominee for the Atlassian board of directors will be elected by the affirmative vote of a majority of the votes cast with respect to such director by the shares represented and entitled to vote at a meeting of the stockholders for the election of directors at which a quorum is present, voting together as a single class. An incumbent director who is nominated for an uncontested election and fails to receive a majority of the votes present and voting for such director’s re-election would be expected to tender their resignation to Atlassian The Nominating and Corporate Governance Committee of the Atlassian board of directors (or any future committee the equivalent thereof) will make a recommendation to the Atlassian board of directors on whether to accept or reject the resignation, or whether other action should be taken. The Atlassian board of directors will act on the recommendation of such committee and will publicly disclose its decision within 90 days from the date of the certification of the election results. In a contested election, a plurality voting standard will apply to director elections. The directors of Atlassian are elected until the expiration of the term for which they are elected and until their respective successors are duly elected and qualified.

The directors of Atlassian may be removed only by the affirmative vote of the holders of at least a majority of the voting power of all then-outstanding voting stock. Furthermore, any vacancy on the Atlassian board of directors, however occurring, including a vacancy resulting from an increase in the size of the board, may be filled only by a majority vote of the directors then in office, even if less than a quorum, or by the sole remaining director, unless Atlassian’s board of directors determines that such directorship or vacancy will be filled by the stockholders. This system of electing and removing directors and filling vacancies may tend to discourage a third party from making a tender offer or otherwise attempting to obtain control of Atlassian, because it generally makes it more difficult for stockholders to replace a majority of the directors.

Choice of Forum

Our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws provide that, except for claims for which the U.S. federal courts have jurisdiction, unless Atlassian consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the exclusive forum for: any derivative action, suit or proceeding brought on Atlassian’s behalf; any action, suit or proceeding asserting a breach of fiduciary duty; any action, suit or proceeding asserting a claim against Atlassian arising pursuant to the DGCL, our Amended and Restated Certificate of Incorporation or Amended and Restated Bylaws; or any action asserting a claim against Atlassian that is governed by the internal affairs doctrine. Although the Atlassian governing documents contain the choice of forum provision described above, it is possible that a court could find that such a provision is inapplicable for a particular claim or action or that such provision is unenforceable.

Limitations of Liability and Indemnification Matters

Our Amended and Restated Certificate of Incorporation provides that our directors and officers will not be personally liable to Atlassian or its stockholders for monetary damages for any breach of fiduciary duty as a director or officer, except to the extent such exemption from liability or limitation is not permitted under the

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DGCL, as may be amended. The DGCL provides that our Amended and Restated Certificate of Incorporation may not eliminate or limit the liability of:

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a director or officer for any breach of the director’s or officer’s duty of loyalty to Atlassian or its stockholders;

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a director or officer for any act or omission not in good faith or that involves intentional misconduct or a knowing violation of law;

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a director pursuant to Section 174 of the DGCL;

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a director or officer for any transaction from which the director or officer derived an improper personal benefit; or

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an officer for any action brought by or in the right of the corporation, including derivative claims.

Our Amended and Restated Bylaws provide that Atlassian must indemnify its directors and officers to the fullest extent permitted by law. Atlassian is also required to advance certain expenses (including attorneys’ fees) to its directors and officers and is expressly authorized to carry directors’ and officers’ insurance providing indemnification for its directors and officers for some liabilities. In addition, Atlassian has entered into separate indemnification agreements with each of its directors and executive officers. Atlassian believes that these bylaw provisions, insurance and indemnification agreements are necessary to attract and retain qualified persons as directors and officers.

The limitation of liability and indemnification provisions in our Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws may discourage stockholders from bringing a lawsuit against Atlassian directors and officers for breach of their fiduciary duty. They may also reduce the likelihood of derivative litigation against Atlassian directors and officers, even though an action, if successful, might benefit Atlassian and its stockholders. Furthermore, a stockholder’s investment may be adversely affected to the extent that Atlassian pays the costs of settlement and damage.

Registration Rights

Certain holders of Atlassian Class A Common Stock and Atlassian Class B Common Stock had rights, subject to certain conditions, to require Atlassian to file registration statements covering their shares or to include their shares in registration statements that Atlassian may file for itself or its stockholders. These registration rights were contained in a registration agreement dated July 2, 2010 between Atlassian and certain of its stockholders (the “Registration Agreement”). The Registration Agreement was terminated pursuant to its terms on February 27, 2024.

Stock Exchange Listing

The shares of Atlassian Class A Common Stock are listed on the Nasdaq Global Select Market under the symbol “TEAM.”

Transfer Agent and Registrar

The transfer agent and registrar for Atlassian’s Class A Common Stock and Class B Common Stock is Computershare Trust Company, N.A.

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DESCRIPTION OF DEBT SECURITIES

The following description, together with the additional information we include in any applicable prospectus supplement or free writing prospectus, summarizes certain general terms and provisions of the debt securities that we may offer under this prospectus. When we offer to sell a particular series of debt securities, we will describe the specific terms of the series in a supplement to this prospectus. We will also indicate in the supplement to what extent the general terms and provisions described in this prospectus apply to a particular series of debt securities.

We may issue debt securities either separately, or together with, or upon the conversion or exercise of or in exchange for, other securities described in this prospectus. Debt securities may be our senior, senior subordinated or subordinated obligations and, unless otherwise specified in a supplement to this prospectus, the debt securities will be our direct, unsecured obligations and may be issued in one or more series.

The debt securities will be issued under an indenture between us and U.S. Bank Trust Company, National Association, as trustee. We have summarized select portions of the indenture below. The summary is not complete. The form of the indenture has been filed as an exhibit to the registration statement and you should read the indenture for provisions that may be important to you. In the summary below, we have included references to the section numbers of the indenture so that you can easily locate these provisions. Capitalized terms used in the summary and not defined herein have the meanings specified in the indenture.

As used in this section only, “Atlassian,” “we,” “our” or “us” refer to Atlassian Corporation.

General

The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and set forth or determined in the manner provided in a resolution of our board of directors, in an officer’s certificate or by a supplemental indenture. (Section 2.2) The particular terms of each series of debt securities will be described in a prospectus supplement relating to such series (including any pricing supplement or term sheet).

We can issue an unlimited amount of debt securities under the indenture that may be in one or more series with the same or various maturities, at par, at a premium, or at a discount. (Section 2.1) We will set forth in a prospectus supplement (including any pricing supplement or term sheet) relating to any series of debt securities being offered, the aggregate principal amount and the following terms of the debt securities, if applicable:

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the title and ranking of the debt securities (including the terms of any subordination provisions);

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the price or prices (expressed as a percentage of the principal amount) at which we will sell the debt securities;

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any limit on the aggregate principal amount of the debt securities;

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the date or dates on which the principal of the securities of the series is payable;

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the rate or rates (which may be fixed or variable) per annum or the method used to determine the rate or rates (including any commodity, commodity index, stock exchange index or financial index) at which the debt securities will bear interest, the date or dates from which interest will accrue, the date or dates on which interest will commence and be payable and any regular record date for the interest payable on any interest payment date;

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the place or places where principal of, and interest, if any, on the debt securities will be payable (and the method of such payment), where the securities of such series may be surrendered for registration of transfer or exchange, and where notices and demands to us in respect of the debt securities may be delivered;

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the period or periods within which, the price or prices at which and the terms and conditions upon which we may redeem the debt securities;

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any obligation we have to redeem or purchase the debt securities pursuant to any sinking fund or analogous provisions or at the option of a holder of debt securities and the period or periods within

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which, the price or prices at which and in the terms and conditions upon which securities of the series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;

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the dates on which and the price or prices at which we will repurchase debt securities at the option of the holders of debt securities and other detailed terms and provisions of these repurchase obligations;

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the denominations in which the debt securities will be issued, if other than denominations of $1,000 and any integral multiple thereof;

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whether the debt securities will be issued in the form of certificated debt securities or global debt securities;

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the portion of principal amount of the debt securities payable upon declaration of acceleration of the maturity date, if other than the principal amount;

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the currency of denomination of the debt securities, which may be United States Dollars or any foreign currency, and if such currency of denomination is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;

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the designation of the currency, currencies or currency units in which payment of principal of, premium and interest on the debt securities will be made;

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if payments of principal of, premium or interest on the debt securities will be made in one or more currencies or currency units other than that or those in which the debt securities are denominated, the manner in which the exchange rate with respect to these payments will be determined;

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the manner in which the amounts of payment of principal of, premium, if any, or interest on the debt securities will be determined, if these amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity index, stock exchange index or financial index;

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any provisions relating to any security provided for the debt securities;

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any addition to, deletion of or change in the Events of Default described in this prospectus or in the indenture with respect to the debt securities and any change in the acceleration provisions described in this prospectus or in the indenture with respect to the debt securities;

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any addition to, deletion of or change in the covenants described in this prospectus or in the indenture with respect to the debt securities;

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any depositaries, interest rate calculation agents, exchange rate calculation agents or other agents with respect to the debt securities;

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the provisions, if any, relating to conversion or exchange of any debt securities of such series, including if applicable, the conversion or exchange price and period, provisions as to whether conversion or exchange will be mandatory, the events requiring an adjustment of the conversion or exchange price and provisions affecting conversion or exchange;

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any other terms of the debt securities, which may supplement, modify or delete any provision of the indenture as it applies to that series, including any terms that may be required under applicable law or regulations or advisable in connection with the marketing of the securities; and

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whether any of our direct or indirect subsidiaries will guarantee the debt securities of that series, including the terms of subordination, if any, of such guarantees. (Section 2.2)

We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the federal income tax considerations and other special considerations applicable to any of these debt securities in the applicable prospectus supplement.

If we denominate the purchase price of any of the debt securities in a foreign currency or currencies or a foreign currency unit or units, or if the principal of and any premium and interest on any series of debt securities is payable in a foreign currency or currencies or a foreign currency unit or units, we will provide you

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with information on the restrictions, elections, general tax considerations, specific terms and other information with respect to that issue of debt securities and such foreign currency or currencies or foreign currency unit or units in the applicable prospectus supplement.

Transfer and Exchange

Each debt security will be represented by either one or more global securities registered in the name of The Depository Trust Company, or the Depositary, or a nominee of the Depositary (we will refer to any debt security represented by a global debt security as a “book-entry debt security”), or a certificate issued in definitive registered form (we will refer to any debt security represented by a certificated security as a “certificated debt security”) as set forth in the applicable prospectus supplement. Except as set forth under the heading “Global Debt Securities and Book-Entry System” below, book-entry debt securities will not be issuable in certificated form.

Certificated Debt Securities. You may transfer or exchange certificated debt securities at any office we maintain for this purpose in accordance with the terms of the indenture. (Section 2.4) No service charge will be made for any transfer or exchange of certificated debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with a transfer or exchange. (Section 2.7)

You may effect the transfer of certificated debt securities and the right to receive the principal of, premium and interest on certificated debt securities only by surrendering the certificate representing those certificated debt securities and either reissuance by us or the trustee of the certificate to the new holder or the issuance by us or the trustee of a new certificate to the new holder.

Global Debt Securities and Book-Entry System. Each global debt security representing book-entry debt securities will be deposited with, or on behalf of, the Depositary, and registered in the name of the Depositary or a nominee of the Depositary. Please see “Global Securities.”

Covenants

We will set forth in the applicable prospectus supplement any restrictive covenants applicable to any issue of debt securities. (Article IV)

No Protection in the Event of a Change of Control

Unless we state otherwise in the applicable prospectus supplement, the debt securities will not contain any provisions which may afford holders of the debt securities protection in the event we have a change in control or in the event of a highly leveraged transaction (whether or not such transaction results in a change in control) which could adversely affect holders of debt securities.

Consolidation, Merger and Sale of Assets

We may not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of our properties and assets to any person (a “successor person”) unless:

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we are the surviving entity or the successor person (if other than Atlassian) is a corporation, partnership, trust or other entity organized and validly existing under the laws of any U.S. domestic jurisdiction and expressly assumes our obligations on the debt securities and under the indenture; and

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immediately after giving effect to the transaction, no Default or Event of Default, shall have occurred and be continuing.

Notwithstanding the above, any of our subsidiaries may consolidate with, merge into or transfer all or part of its properties to us. (Section 5.1)

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Events of Default

“Event of Default” means with respect to any series of debt securities, any of the following:

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default in the payment of any interest upon any debt security of that series when it becomes due and payable, and continuance of such default for a period of 30 days (unless the entire amount of the payment is deposited by us with the trustee or with a paying agent prior to the expiration of the 30-day period);

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default in the payment of principal of any security of that series at its maturity;

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default in the performance or breach of any other covenant or warranty by us in the indenture (other than a covenant or warranty that has been included in the indenture solely for the benefit of a series of debt securities other than that series), which default continues uncured for a period of 60 days after we receive written notice from the trustee or Atlassian and the trustee receive written notice from the holders of not less than 25% in principal amount of the outstanding debt securities of that series as provided in the indenture;

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certain voluntary or involuntary events of bankruptcy, insolvency or reorganization of Atlassian;

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any other Event of Default provided with respect to debt securities of that series that is described in the applicable prospectus supplement. (Section 6.1)

No Event of Default with respect to a particular series of debt securities (except as to certain events of bankruptcy, insolvency or reorganization) necessarily constitutes an Event of Default with respect to any other series of debt securities. (Section 6.1) The occurrence of certain Events of Default or an acceleration under the indenture may constitute an event of default under certain indebtedness of ours or our subsidiaries outstanding from time to time.

We will provide the trustee written notice of any Default or Event of Default within 30 days of becoming aware of the occurrence of such Default or Event of Default, which notice will describe in reasonable detail the status of such Default or Event of Default and what action we are taking or propose to take in respect thereof. (Section 6.1)

If an Event of Default with respect to debt securities of any series at the time outstanding occurs and is continuing, then the trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may, by a notice in writing to us (and to the trustee if given by the holders), declare to be due and payable immediately the principal of (or, if the debt securities of that series are discount securities, that portion of the principal amount as may be specified in the terms of that series) and accrued and unpaid interest, if any, on all debt securities of that series. In the case of an Event of Default resulting from certain events of bankruptcy, insolvency or reorganization, the principal (or such specified amount) of and accrued and unpaid interest, if any, on all outstanding debt securities will become and be immediately due and payable without any declaration or other act on the part of the trustee or any holder of outstanding debt securities. At any time after a declaration of acceleration with respect to debt securities of any series has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding debt securities of that series may rescind and annul the acceleration if all Events of Default, other than the non-payment of accelerated principal and interest, if any, with respect to debt securities of that series, have been cured or waived as provided in the indenture. (Section 6.2) We refer you to the prospectus supplement relating to any series of debt securities that are discount securities for the particular provisions relating to acceleration of a portion of the principal amount of such discount securities upon the occurrence of an Event of Default.

The indenture provides that the trustee may refuse to perform any duty or exercise any of its rights or powers under the indenture unless the trustee receives indemnity satisfactory to it against any cost, liability or expense which might be incurred by it in performing such duty or exercising such right or power. (Section 7.1(e)) Subject to certain rights of the trustee, the holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the debt securities of that series. (Section 6.12)

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No holder of any debt security of any series will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture or for the appointment of a receiver or trustee, or for any remedy under the indenture, unless:

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that holder has previously given to the trustee written notice of a continuing Event of Default with respect to debt securities of that series; and

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the holders of not less than 25% in principal amount of the outstanding debt securities of that series have made written request, and offered indemnity or security satisfactory to the trustee, to the trustee to institute the proceeding as trustee, and the trustee has not received from the holders of not less than a majority in principal amount of the outstanding debt securities of that series a direction inconsistent with that request and has failed to institute the proceeding within 60 days. (Section 6.7)

Notwithstanding any other provision in the indenture, the holder of any debt security will have an absolute and unconditional right to receive payment of the principal of, premium and any interest on that debt security on or after the due dates expressed in that debt security and to institute suit for the enforcement of payment. (Section 6.8)

The indenture requires us, within 120 days after the end of our fiscal year, to furnish to the trustee a statement as to compliance with the indenture. (Section 4.3) If a Default or Event of Default occurs and is continuing with respect to the securities of any series and if it is known to a responsible officer of the trustee, the trustee shall mail to each securityholder of the securities of that series notice of a Default or Event of Default within 90 days after it occurs or, if later, after a responsible officer of the trustee has knowledge of such Default or Event of Default. The indenture provides that the trustee may withhold notice to the holders of debt securities of any series of any Default or Event of Default (except in payment on any debt securities of that series) with respect to debt securities of that series if the trustee determines in good faith that withholding notice is in the interest of the holders of those debt securities. (Section 7.5)

Modification and Waiver

We and the trustee may modify, amend or supplement the indenture or the debt securities of any series without the consent of any holder of any debt security:

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to cure any ambiguity, defect or inconsistency;

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to comply with covenants in the indenture described above under the heading “Consolidation, Merger and Sale of Assets”;

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to provide for uncertificated securities in addition to or in place of certificated securities;

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to add guarantees with respect to debt securities of any series or secure debt securities of any series;

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to surrender any of our rights or powers under the indenture;

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to add covenants or events of default for the benefit of the holders of debt securities of any series;

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to comply with the applicable procedures of the applicable depositary;

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to make any change that does not adversely affect the rights of any holder of debt securities;

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to provide for the issuance of and establish the form and terms and conditions of debt securities of any series as permitted by the indenture;

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to effect the appointment of a successor trustee with respect to the debt securities of any series and to add to or change any of the provisions of the indenture to provide for or facilitate administration by more than one trustee; or

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to comply with requirements of the SEC in order to effect or maintain the qualification of the indenture under the Trust Indenture Act. (Section 9.1)

We may also modify and amend the indenture with the consent of the holders of at least a majority in principal amount of the outstanding debt securities of each series affected by the modifications or amendments. We may not make any modification or amendment without the consent of the holders of each affected debt security then outstanding if that amendment will:

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reduce the amount of debt securities whose holders must consent to an amendment, supplement or waiver;

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reduce the rate of or extend the time for payment of interest (including default interest) on any debt security;

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reduce the principal of or premium on or change the fixed maturity of any debt security or reduce the amount of, or postpone the date fixed for, the payment of any sinking fund or analogous obligation with respect to any series of debt securities;

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reduce the principal amount of discount securities payable upon acceleration of maturity;

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waive a default in the payment of the principal of, premium or interest on any debt security (except a rescission of acceleration of the debt securities of any series by the holders of at least a majority in aggregate principal amount of the then outstanding debt securities of that series and a waiver of the payment default that resulted from such acceleration);

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make the principal of or premium or interest on any debt security payable in currency other than that stated in the debt security;

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make any change to certain provisions of the indenture relating to, among other things, the right of holders of debt securities to receive payment of the principal of, premium and interest on those debt securities and to institute suit for the enforcement of any such payment and to waivers or amendments; or

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waive a redemption payment with respect to any debt security. (Section 9.3)

Except for certain specified provisions, the holders of at least a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all debt securities of that series waive our compliance with provisions of the indenture. (Section 9.2) The holders of a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all the debt securities of such series waive any past default under the indenture with respect to that series and its consequences, except a default in the payment of the principal of, premium or any interest on any debt security of that series; provided, however, that the holders of a majority in principal amount of the outstanding debt securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from the acceleration. (Section 6.13)

Defeasance of Debt Securities and Certain Covenants in Certain Circumstances

Legal Defeasance. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, we may be discharged from any and all obligations in respect of the debt securities of any series (subject to certain exceptions). We will be so discharged upon the irrevocable deposit with the trustee, in trust, of money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money or U.S. government obligations in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities.

This discharge may occur only if, among other things, we have delivered to the trustee an opinion of counsel stating that we have received from, or there has been published by, the United States Internal Revenue Service a ruling or, since the date of execution of the indenture, there has been a change in the applicable United States federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the holders of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit, defeasance and discharge and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit, defeasance and discharge had not occurred. (Section 8.3)

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Defeasance of Certain Covenants. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, upon compliance with certain conditions:

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we may omit to comply with the covenant described under the heading “Consolidation, Merger and Sale of Assets” and certain other covenants set forth in the indenture, as well as any additional covenants which may be set forth in the applicable prospectus supplement; and

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any omission to comply with those covenants will not constitute a Default or an Event of Default with respect to the debt securities of that series (“covenant defeasance”).

The conditions include:

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depositing with the trustee money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal of, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities; and

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delivering to the trustee an opinion of counsel to the effect that the holders of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit and related covenant defeasance and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit and related covenant defeasance had not occurred. (Section 8.4)

No Personal Liability of Directors, Officers, Employees or Securityholders

None of our past, present or future directors, officers, employees or securityholders, as such, will have any liability for any of our obligations under the debt securities or the indenture or for any claim based on, or in respect or by reason of, such obligations or their creation. By accepting a debt security, each holder waives and releases all such liability. This waiver and release is part of the consideration for the issue of the debt securities. However, this waiver and release may not be effective to waive liabilities under U.S. federal securities laws, and it is the view of the SEC that such a waiver is against public policy.

Governing Law

The indenture and the debt securities, including any claim or controversy arising out of or relating to the indenture or the securities, will be governed by the laws of the State of New York.

The indenture will provide that we, the trustee and the holders of the debt securities (by their acceptance of the debt securities) irrevocably waive, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to the indenture, the debt securities or the transactions contemplated thereby.

The indenture will provide that any legal suit, action or proceeding arising out of or based upon the indenture or the transactions contemplated thereby may be instituted in the federal courts of the United States of America located in the City of New York or the courts of the State of New York in each case located in the City of New York, and we, the trustee and the holder of the debt securities (by their acceptance of the debt securities) irrevocably submit to the non-exclusive jurisdiction of such courts in any such suit, action or proceeding. The indenture will further provide that service of any process, summons, notice or document by mail (to the extent allowed under any applicable statute or rule of court) to such party’s address set forth in the indenture will be effective service of process for any suit, action or other proceeding brought in any such court. The indenture will further provide that we, the trustee and the holders of the debt securities (by their acceptance of the debt securities) irrevocably and unconditionally waive any objection to the laying of venue of any suit, action or other proceeding in the courts specified above and irrevocably and unconditionally waive and agree not to plead or claim any such suit, action or other proceeding has been brought in an inconvenient forum. (Section 10.10)

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DESCRIPTION OF OTHER SECURITIES

We will set forth in the applicable prospectus supplement a description of any warrants, purchase contracts or units issued by us that may be offered and sold pursuant to this prospectus.

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GLOBAL SECURITIES

Book-Entry, Delivery and Form

Unless we indicate differently in any applicable prospectus supplement or free writing prospectus, the securities initially will be issued in book-entry form and represented by one or more global notes or global securities, or, collectively, global securities. The global securities will be deposited with, or on behalf of, The Depository Trust Company, New York, New York, as depositary, or DTC, and registered in the name of Cede & Co., the nominee of DTC. Unless and until it is exchanged for individual certificates evidencing securities under the limited circumstances described below, a global security may not be transferred except as a whole by the depositary to its nominee or by the nominee to the depositary, or by the depositary or its nominee to a successor depositary or to a nominee of the successor depositary.

DTC has advised us that it is:

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a limited-purpose trust company organized under the New York Banking Law;

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a “banking organization” within the meaning of the New York Banking Law;

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a member of the Federal Reserve System;

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a “clearing corporation” within the meaning of the New York Uniform Commercial Code; and

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a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act.

DTC holds securities that its participants deposit with DTC. DTC also facilitates the settlement among its participants of securities transactions, such as transfers and pledges, in deposited securities through electronic computerized book-entry changes in participants’ accounts, thereby eliminating the need for physical movement of securities certificates. “Direct participants” in DTC include securities brokers and dealers, including underwriters, banks, trust companies, clearing corporations and other organizations. DTC is a wholly-owned subsidiary of The Depository Trust & Clearing Corporation, or DTCC. DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to others, which we sometimes refer to as indirect participants, that clear through or maintain a custodial relationship with a direct participant, either directly or indirectly. The rules applicable to DTC and its participants are on file with the SEC.

Purchases of securities under the DTC system must be made by or through direct participants, which will receive a credit for the securities on DTC’s records. The ownership interest of the actual purchaser of a security, which we sometimes refer to as a beneficial owner, is in turn recorded on the direct and indirect participants’ records. Beneficial owners of securities will not receive written confirmation from DTC of their purchases. However, beneficial owners are expected to receive written confirmations providing details of their transactions, as well as periodic statements of their holdings, from the direct or indirect participants through which they purchased securities. Transfers of ownership interests in global securities are to be accomplished by entries made on the books of participants acting on behalf of beneficial owners. Beneficial owners will not receive certificates representing their ownership interests in the global securities, except under the limited circumstances described below.

To facilitate subsequent transfers, all global securities deposited by direct participants with DTC will be registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of securities with DTC and their registration in the name of Cede & Co. or such other nominee will not change the beneficial ownership of the securities. DTC has no knowledge of the actual beneficial owners of the securities. DTC’s records reflect only the identity of the direct participants to whose accounts the securities are credited, which may or may not be the beneficial owners. The participants are responsible for keeping account of their holdings on behalf of their customers.

So long as the securities are in book-entry form, you will receive payments and may transfer securities only through the facilities of the depositary and its direct and indirect participants. We will maintain an office or agency in the location specified in the prospectus supplement for the applicable securities, where notices and demands in respect of the securities and the indenture may be delivered to us and where certificated securities may be surrendered for payment, registration of transfer or exchange.

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Conveyance of notices and other communications by DTC to direct participants, by direct participants to indirect participants and by direct participants and indirect participants to beneficial owners will be governed by arrangements among them, subject to any legal requirements in effect from time to time.

Redemption notices will be sent to DTC. If less than all of the securities of a particular series are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each direct participant in the securities of such series to be redeemed.

Neither DTC nor Cede & Co. (or such other DTC nominee) will consent or vote with respect to the securities. Under its usual procedures, DTC will mail an omnibus proxy to us as soon as possible after the record date. The omnibus proxy assigns the consenting or voting rights of Cede & Co. to those direct participants to whose accounts the securities of such series are credited on the record date, identified in a listing attached to the omnibus proxy.

So long as securities are in book-entry form, we will make payments on those securities to the depositary or its nominee, as the registered owner of such securities, by wire transfer of immediately available funds. If securities are issued in definitive certificated form under the limited circumstances described below and unless if otherwise provided in the description of the applicable securities herein or in the applicable prospectus supplement, we will have the option of making payments by check mailed to the addresses of the persons entitled to payment or by wire transfer to bank accounts in the United States designated in writing to the applicable trustee or other designated party at least 15 days before the applicable payment date by the persons entitled to payment, unless a shorter period is satisfactory to the applicable trustee or other designated party.

Redemption proceeds, distributions and dividend payments on the securities will be made to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC. DTC’s practice is to credit direct participants’ accounts upon DTC’s receipt of funds and corresponding detail information from us on the payment date in accordance with their respective holdings shown on DTC records. Payments by participants to beneficial owners will be governed by standing instructions and customary practices, as is the case with securities held for the account of customers in bearer form or registered in “street name.” Those payments will be the responsibility of participants and not of DTC or us, subject to any statutory or regulatory requirements in effect from time to time. Payment of redemption proceeds, distributions and dividend payments to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC, is our responsibility, disbursement of payments to direct participants is the responsibility of DTC, and disbursement of payments to the beneficial owners is the responsibility of direct and indirect participants.

Except under the limited circumstances described below, purchasers of securities will not be entitled to have securities registered in their names and will not receive physical delivery of securities. Accordingly, each beneficial owner must rely on the procedures of DTC and its participants to exercise any rights under the securities and the indenture.

The laws of some jurisdictions may require that some purchasers of securities take physical delivery of securities in definitive form. Those laws may impair the ability to transfer or pledge beneficial interests in securities.

DTC may discontinue providing its services as securities depositary with respect to the securities at any time by giving reasonable notice to us. Under such circumstances, in the event that a successor depositary is not obtained, securities certificates are required to be printed and delivered.

As noted above, beneficial owners of a particular series of securities generally will not receive certificates representing their ownership interests in those securities. However, if:

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DTC notifies us that it is unwilling or unable to continue as a depositary for the global security or securities representing such series of securities or if DTC ceases to be a clearing agency registered under the Exchange Act at a time when it is required to be registered and a successor depositary is not appointed within 90 days of the notification to us or of our becoming aware of DTC’s ceasing to be so registered, as the case may be;

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we determine, in our sole discretion, not to have such securities represented by one or more global securities; or

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•

an Event of Default has occurred and is continuing with respect to such series of securities,

we will prepare and deliver certificates for such securities in exchange for beneficial interests in the global securities. Any beneficial interest in a global security that is exchangeable under the circumstances described in the preceding sentence will be exchangeable for securities in definitive certificated form registered in the names that the depositary directs. It is expected that these directions will be based upon directions received by the depositary from its participants with respect to ownership of beneficial interests in the global securities.

Euroclear and Clearstream

If so provided in the applicable prospectus supplement, you may hold interests in a global security through Clearstream Banking S.A., which we refer to as “Clearstream,” or Euroclear Bank S.A./N.V., as operator of the Euroclear System, which we refer to as “Euroclear,” either directly if you are a participant in Clearstream or Euroclear or indirectly through organizations which are participants in Clearstream or Euroclear. Clearstream and Euroclear will hold interests on behalf of their respective participants through customers’ securities accounts in the names of Clearstream and Euroclear, respectively, on the books of their respective U.S. depositaries, which in turn will hold such interests in customers’ securities accounts in such depositaries’ names on DTC’s books.

Clearstream and Euroclear are securities clearance systems in Europe. Clearstream and Euroclear hold securities for their respective participating organizations and facilitate the clearance and settlement of securities transactions between those participants through electronic book-entry changes in their accounts, thereby eliminating the need for physical movement of certificates.

Payments, deliveries, transfers, exchanges, notices and other matters relating to beneficial interests in global securities owned through Euroclear or Clearstream must comply with the rules and procedures of those systems. Transactions between participants in Euroclear or Clearstream, on one hand, and other participants in DTC, on the other hand, are also subject to DTC’s rules and procedures.

Investors will be able to make and receive through Euroclear and Clearstream payments, deliveries, transfers and other transactions involving any beneficial interests in global securities held through those systems only on days when those systems are open for business. Those systems may not be open for business on days when banks, brokers and other institutions are open for business in the United States.

Cross-market transfers between participants in DTC, on the one hand, and participants in Euroclear or Clearstream, on the other hand, will be effected through DTC in accordance with the DTC’s rules on behalf of Euroclear or Clearstream, as the case may be, by their respective U.S. depositaries; however, such cross-market transactions will require delivery of instructions to Euroclear or Clearstream, as the case may be, by the counterparty in such system in accordance with the rules and procedures and within the established deadlines (European time) of such system. Euroclear or Clearstream, as the case may be, will, if the transaction meets its settlement requirements, deliver instructions to its U.S. depositary to take action to effect final settlement on its behalf by delivering or receiving interests in the global securities through DTC, and making or receiving payment in accordance with normal procedures for same-day fund settlement. Participants in Euroclear or Clearstream may not deliver instructions directly to their respective U.S. depositaries.

Due to time zone differences, the securities accounts of a participant in Euroclear or Clearstream purchasing an interest in a global security from a direct participant in DTC will be credited, and any such crediting will be reported to the relevant participant in Euroclear or Clearstream, during the securities settlement processing day (which must be a business day for Euroclear or Clearstream) immediately following the settlement date of DTC. Cash received in Euroclear or Clearstream as a result of sales of interests in a global security by or through a participant in Euroclear or Clearstream to a direct participant in DTC will be received with value on the settlement date of DTC but will be available in the relevant Euroclear or Clearstream cash account only as of the business day for Euroclear or Clearstream following DTC’s settlement date.

Other

The information in this section of this prospectus concerning DTC, Clearstream, Euroclear and their respective book-entry systems has been obtained from sources that we believe to be reliable, but we do not take

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responsibility for this information. This information has been provided solely as a matter of convenience. The rules and procedures of DTC, Clearstream and Euroclear are solely within the control of those organizations and could change at any time. Neither we nor the trustee nor any agent of ours or of the trustee has any control over those entities and none of us takes any responsibility for their activities. You are urged to contact DTC, Clearstream and Euroclear or their respective participants directly to discuss those matters. In addition, although we expect that DTC, Clearstream and Euroclear will perform the foregoing procedures, none of them is under any obligation to perform or continue to perform such procedures and such procedures may be discontinued at any time. Neither we nor any agent of ours will have any responsibility for the performance or nonperformance by DTC, Clearstream and Euroclear or their respective participants of these or any other rules or procedures governing their respective operations.

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PLAN OF DISTRIBUTION

We may sell the offered securities from time to time:

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to or through underwriters or dealers for resale;

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to or through agents;

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directly to one or more purchasers;

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through a combination of any of these methods of sale; or

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through any other means as described in the applicable prospectus supplement.

We will identify the specific plan of distribution, including any underwriters, dealers, agents or direct purchasers and their compensation, and the purchase price and the proceeds we will receive from such sale in the applicable prospectus supplement.

If underwriters are used in the sale, the securities will be acquired by the underwriters for their own account and may be resold from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. The securities may be either offered to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. The obligations of the underwriters to purchase securities will be subject to conditions precedent and the underwriters will be obligated to purchase all the securities of a series if any are purchased. Any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time.

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LEGAL MATTERS

Latham & Watkins LLP will pass upon certain legal matters relating to the issuance and sale of the securities offered hereby on behalf of Atlassian Corporation. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

EXPERTS

Ernst & Young LLP, independent registered public accounting firm, has audited Atlassian Corporation’s consolidated financial statements as of June 30, 2023 and 2022, and for each of the three years in the period ended June 30, 2023, included in its Annual Report on Form 10-K for the year ended June 30, 2023, and the effectiveness of its internal control over financial reporting as of June 30, 2023, as set forth in their reports, which are incorporated by reference in this registration statement. Atlassian Corporation’s financial statements and management’s assessment of the effectiveness of internal control over financial reporting as of June 30, 2023 are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

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$ % Senior Notes due 20

Preliminary Prospectus Supplement

Joint Book-Running Managers

BofA Securities Goldman Sachs & Co. LLC Morgan Stanley

, 2024

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