FALSE000153496900015349692023-12-062023-12-06

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): December 6, 2023
SERA PROGNOSTICS, INC.
(Exact name of registrant as specified in its charter)
Delaware001-4060626-1911522
(State or other jurisdiction
of incorporation)
(Commission File Number)(IRS Employer
Identification No.)
2749 East Parleys WaySuite 200
Salt Lake CityUtah
84109
(Address of principal executive offices)(zip code)
Registrant’s telephone number, including area code: (801990-0520
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading
Symbol(s)
Name of each exchange
on which registered
Class A Common Stock, $0.0001 par value per shareSERA
The Nasdaq Stock Market LLC
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging Growth Company x
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o



Item 1.01     Entry into a Material Definitive Agreement.
On December 6, 2023, Sera Prognostics, Inc. (the “Company”) entered into the second amendment (“Amendment No. 2”) to that certain Side Letter, dated as of April 29, 2021 (the “Side Letter”), previously amended effective February 16, 2023, with Baker Bros. Advisors LP and certain affiliates of Baker Bros. Advisors LP (collectively, “Baker Bros. Investors”). Pursuant to Amendment No. 2, the Baker Bros. Investors’ right to nominate one director to the Company’s board of directors was amended such that in order to exercise the right, among other conditions, the Baker Bros. Investors must beneficially own shares or other equity securities of the Company representing at least 19.9% of the then-outstanding total voting power of the Company.
The foregoing description of Amendment No. 2 does not purport to be complete and is qualified in its entirety by reference to Amendment No. 2, which will be filed as an exhibit to the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, and is incorporated herein by reference.



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.
SERA PROGNOSTICS, INC.
By:/s/ Austin Aerts
Austin Aerts
Chief Financial Officer
Date: December 12, 2023

v3.23.3
Cover
Dec. 06, 2023
Cover [Abstract]  
Document Type 8-K
Document Period End Date Dec. 06, 2023
Entity Registrant Name SERA PROGNOSTICS, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-40606
Entity Tax Identification Number 26-1911522
Entity Address, Address Line One 2749 East Parleys Way
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Salt Lake City
Entity Address, State or Province UT
Entity Address, Postal Zip Code 84109
City Area Code 801
Local Phone Number 990-0520
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Title of 12(b) Security Class A Common Stock, $0.0001 par value per share
Trading Symbol SERA
Security Exchange Name NASDAQ
Amendment Flag false
Entity Central Index Key 0001534969

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