Filed Pursuant to Rule
424(b)(3)
Registration No. 333-278685
PROSPECTUS SUPPLEMENT NO. 4
(TO PROSPECTUS DATED SEPTEMBER 24, 2024)
This prospectus
supplement updates and supplements the prospectus dated September 24,
2024 (the “Prospectus”), which forms a part of our registration statement on Form F-1 (No. 333-278685). This prospectus supplement
is being filed to update and supplement the information in the Prospectus with information contained in our Current Report on Form 6-K
filed with the Securities and Exchange Commission on December 17, 2024
(the “Current Report”). Accordingly, we have attached the Current Report to this prospectus supplement.
This Prospectus
and prospectus supplement relate to the resale, from time to time, by the selling shareholders named in the Prospectus (the “Selling
Shareholders”) of an aggregate of up to 40,000,000 of our Ordinary Shares, US$0.01 par value per Ordinary Share (the “Ordinary
Shares”), reserved for issuance (i) upon the conversion of currently outstanding 2.5% discount convertible promissory notes (the
“Notes”) held by the Selling Shareholders (the “Conversion Shares”), (ii) upon exercise of currently outstanding
warrants (the “Third Tranche Warrants”) held by the Selling Shareholders (the “Third Tranche Warrant Shares”),
and (iii) the outstanding warrants that were issued on January 9, 2024 (the “Second Tranche Warrants”, and together with the
Third Tranche Warrants, the “Warrants”) and held by the Selling Shareholders (the “Second Tranche Warrant Shares”,
and together with the Third Tranche Warrant Shares, the “Warrant Shares”). The Notes and Third Tranche Warrants were issued
to the Selling Shareholders on March 1, 2024 (the “Closing Date”).
We registered the resale of up to an aggregate
of 40,000,000 Conversion Shares and Warrant Shares as required by the Registration Rights Agreement, dated as of July 11, 2023, as amended
(the “Registration Rights Agreement”), by and among us and the Selling Shareholders.
The Conversion Shares include Ordinary Shares
issuable upon conversion of $10,000,000 in aggregate principal amount of the Notes and in accruing interest which may be paid by the Company
in Conversion Shares with the written consent of the Selling Shareholders (including Ordinary Shares reserved for potential issuance in
the event of possible future default or dilution adjustments). The Notes are convertible at a conversion price of the lesser of (i) $5.50
per Ordinary Share (the “Fixed Conversion Price”), or (ii) 93% of the lowest daily variable-weighted average price (the “VWAP”)
per Ordinary Share during the 10 trading days preceding the conversion (the “Variable Conversion Price”). The Variable Conversion
Price has a floor of $0.55 per Ordinary Share (the “Floor Conversion Price”). The Floor Conversion price of the Notes can
be lowered by mutual consent of the Company and the Selling Shareholders. The Notes provide for adjustment of the Fixed Conversion Price
for, inter alia, share dividends, share divisions, share combinations, rights offerings, pro rata distributions of assets, reclassifications
of Ordinary Shares, exchanges of Ordinary Shares or substitutions of Ordinary Shares, dilutive issuances, certain option issuances and
issuances of convertible securities. At the Floor Conversion Price, the Notes are convertible into an aggregate of 19,636,364 Ordinary
Shares.
The Third Tranche Warrant Shares include Ordinary
Shares issuable upon exercise of the Third Tranche Warrants (including Ordinary Shares reserved for potential issuance in the event of
possible future default or dilution adjustments). The Third Tranche Warrants are exercisable, immediately upon issuance at the option
of the holders, at an exercise price per Ordinary Share equal to initial Fixed Conversion Price for the Notes ($5.50 per Ordinary Share).
On the Closing Date, the Selling Shareholders were issued the Warrants to purchase up to an aggregate of 1,537,358 Ordinary Shares.
The Second Tranche Warrant Shares include Ordinary
Shares issuable upon exercise of the Second Tranche Warrants (including Ordinary Shares reserved for potential issuance in the event of
possible future default or dilution adjustments). The Second Tranche Warrants are exercisable, immediately upon issuance at the option
of the holders, at an exercise price of $4.00 per Ordinary Share. On January 9, 2024, the Selling Shareholders were issued the Second
Tranche Warrants to purchase up to an aggregate of 2,288,678 Ordinary Shares.
To the extent that Conversion Shares and/or Warrant
Shares are issued by the Company under the terms of the Notes and Warrants, substantial amounts of Ordinary Shares could be issued and
resold, which would cause dilution and may impact the Company’s share price. See “Risk Factors” and “Convertible
Note Financing” for additional information.
We are not selling any securities under this prospectus
and will not receive any of the proceeds from the sale of our Conversion Shares or Warrant Shares by the Selling Shareholders. However,
we may receive proceeds from the exercise of the (i) Second Tranche Warrants, which, if exercised in full for an aggregate of 2,288,678
Ordinary Shares and for cash at the current $4.00 exercise price per Ordinary Share, would result in gross proceeds to us of approximately
$9,154,712 and (ii)Third Tranche Warrants, which, if exercised in full for an aggregate of 1,537,358 Ordinary Shares and for cash at the
current $5.50 exercise price per Ordinary Share, would result in gross proceeds to us of approximately $8,455,469. There is no assurance
that the Selling Shareholders will elect to exercise any of the Warrants for cash and, accordingly, no assurance that we will receive
any proceeds from the exercise of the Warrants.
We will pay the expenses of registering the Conversion
Shares and Warrant Shares offered by this prospectus, but all selling and other expenses incurred by the Selling Shareholders will be
paid by the Selling Shareholders. The Selling Shareholders may sell the Conversion Shares and the Warrant Shares offered by this prospectus
from time to time on terms to be determined at the time of sale through ordinary brokerage transactions or through any other means described
in this prospectus under “Plan of Distribution.” The prices at which the Selling Shareholders may sell the Conversion Shares
or the Warrant Shares will be determined by the prevailing market price for our Ordinary Shares or in negotiated transactions.
Our Ordinary
Shares are listed on the Nasdaq Capital Market under the ticker symbol “LAES.” The last reported sale price of our Ordinary
Shares on the Nasdaq Capital Market on December 16, 2024 was $2.45 per share.
This prospectus supplement should be read in conjunction
with, and delivered with, the Prospectus and is qualified by reference to the Prospectus except to the extent that the information in
this prospectus supplement supersedes the information contained in the Prospectus. This prospectus supplement is not complete without,
and may not be delivered or utilized except in connection with, the Prospectus, including any amendments or supplements to it.
Investing in our Ordinary Shares involves risks.
See “Risk Factors” beginning on page 18 of the Prospectus for a discussion of information that should be considered in connection
with an investment in our Ordinary Shares.
Neither the U.S. Securities and Exchange Commission
(“SEC”) nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy
of this Prospectus Supplement No. 4. Any representation to the contrary is a criminal offense.
The date of this Prospectus
Supplement is December 17, 2024.
UNITED STATES
SECURITIES AND
EXCHANGE COMMISSION
WASHINGTON, DC
20549
FORM 6-K
Report of Foreign Private
Issuer
Pursuant to Rule 13a-16 or 15d-16 under the
Securities
Exchange Act of 1934
For the month of December 2024
Commission File Number: 001-41709
SEALSQ
CORP
(Exact Name of
Registrant as Specified in Charter)
N/A
(Translation of Registrant’s
name into English)
| British Virgin Islands |
Avenue
Louis-Casaï 58
1216 Cointrin,
Switzerland |
Not Applicable |
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| (State or other jurisdiction of incorporation or organization) |
(Address of principal executive office) |
(I.R.S. Employer Identification No.) |
Indicate by check mark whether the registrant
files or will file annual reports under cover of Form 20-F or Form 40-F:
☒ Form
20-F ☐ Form 40-F
Registered
Direct Offering
Securities
Purchase Agreement
On
December 16, 2024, SEALSQ Corp (the “Company”) entered into a second Securities Purchase Agreement (the “Second Purchase
Agreement”) with several institutional investors named therein (the “Investors”), pursuant to which the Company agreed
to sell and issue 13,157,896 ordinary shares of the Company (the “Ordinary Shares”) to the Investors at a purchase price
of US$1.90 per Ordinary Share, in a registered direct offering (the “Offering”). The closing of the registered direct offering
is expected to occur on December 17, 2024 (the “Closing Date”), subject to customary closing conditions.
The
gross proceeds to the Company from the Offering are expected to be approximately $25,000,000.00, before deducting the placement agent’s
fees and other estimated offering expenses payable by the Company.
The
Offering was made pursuant to the Company’s existing shelf registration statement on Form F-3 (File No. 333-283358), which was
declared effective on November 27, 2024 by the U.S. Securities and Exchange Commission (the “Registration Statement”). A
prospectus supplement to the Registration Statement is expected to be filed with the Commission on or around December 17, 2024.
Pursuant
to the Second Purchase Agreement, the Company agreed not to issue, enter into any agreement to issue or announce the issuance or proposed
issuance of, any Ordinary Shares of the Company or any securities convertible into or exercisable or exchangeable for Ordinary Shares
of the Company or file any registration statement or prospectus, or any amendment or supplement thereto until the earlier of (i) 90 days
after the closing of an additional convertible note tranche in an aggregate principle amount of $10.0 million pursuant to that certain
securities purchase agreement, dated July 11, 2023, as amended, (the “Note Tranche Closing”), or (ii) March 31, 2025, subject
to certain exceptions, without the prior consent of the Investors. The Investors agreed that the aforementioned standstill provision,
which is also set forth in the securities purchase agreement, dated December 12, 2024, would not apply to the transactions contemplated
by the Second Securities Purchase Agreement.
In
addition, the Company agreed not to effect or enter into an agreement to effect any issuance of Ordinary Shares or any securities convertible
into or exercisable or exchangeable for Ordinary Shares involving a Variable Rate Transaction (as defined in the Purchase Agreement)
until 180 days after the Note Tranche Closing, subject to certain exceptions.
In
addition, the Company agreed that the offering and sale of the Shares to the Investors pursuant the Second Purchase Agreement shall not
result in the lowering of the exercise price of the warrants issued by the Company to the Investors prior to the date hereof below US$2.00
per share.
Placement
Agency Agreement
On
December 16, 2024, the Company entered into a second placement agency agreement (the “Second Placement Agency Agreement”)
with Maxim Group LLC (the “Placement Agent”), pursuant to which the Company agreed to pay the Placement Agent an aggregate
fee equal to 7.0% of the aggregate gross proceeds received by the Company from the sale of the Ordinary Shares in the Offering. The Company
also agreed to reimburse the Placement Agent for up to $40,000 in accountable expenses, including the Placement Agent’s legal counsel’s
fees.
The
foregoing descriptions of the Second Purchase Agreement and the Second Placement Agency Agreement are qualified in their entirety by
reference to the full text of the Second Purchase Agreement and the Second Placement Agency Agreement, respectively, forms of which are
attached to this Report of Foreign Private Issuer on Form 6-K as Exhibits 10.1 and 10.2, respectively, and incorporated herein by reference.
The
foregoing information contained in this Report on Form 6-K (this “Report”) and Exhibits 5.1, 10.1 and 10.2 filed herewith
are hereby incorporated by reference in the Registration Statement and are deemed to be a part thereof from the date on which this Report
is filed, to the extent not superseded by documents or reports subsequently filed with or furnished to the SEC.
Convertible
Note Facility Update
As previously reported, the
Company issued convertible notes to certain investors in an aggregate amount of $30.0 million pursuant to that certain securities purchase
agreement, dated July 11, 2023, as amended (the “Note Purchase Agreement”), on July 11, 2023, January 9, 2024 and March 1,
2024, respectively (collectively, the “Notes”). As of the date hereof, such investors have converted all of the Notes into
an aggregate of 48,692,078 Ordinary Shares. The warrants issued to such investors under the Note Purchase Agreement remain outstanding
as of the date hereof.
After
giving effect to the Offering and the conversion in full of the Notes, the total number of outstanding Ordinary Shares of the Company
is 77,051,966.
This Report shall not constitute an offer to sell or a solicitation of an offer to buy any Ordinary Shares, nor shall
there be any sale of Ordinary Shares in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior
to registration or qualification under the securities laws of any such state or other jurisdiction.
SIGNATURES
Pursuant to the requirements of
the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized.
Date: December 17, 2024 |
SEALSQ CORP |
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By: |
/s/ Carlos Moreira |
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Name: Carlos Moreira |
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Title: Chief Executive Officer |
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By: |
/s/ John O’Hara |
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Name: John O’Hara |
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Title: Chief Financial Officer |
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