Sec Form 4 Filing - MOYES JAY M @ SERA PROGNOSTICS, INC. - 2021-07-19

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person MOYES JAY M 2. Issuer Name and Ticker or Trading Symbol SERA PROGNOSTICS, INC. [ SERA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) C/O SERA PROGNOSTICS, INC., 2749 EAST PARLEYS WAY, SUITE 200 3. Date of Earliest Transaction (MM/DD/YY) 07/19/2021 (Street) SALT LAKE CITY, UT84109 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 07/19/2021 C 2,455 A 2,455 D Class A Common Stock 07/19/2021 C 375 A 2,830 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Series A-2 Preferred Stock ( 1 ) 07/19/2021 C 2,455 ( 3 ) ( 1 ) Class A Common Stock 2,455 $ 0 0 D Series B-1 Preferred Stock ( 2 ) 07/19/2021 C 375 ( 3 ) ( 2 ) Class A Common Stock 375 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other MOYES JAY M C/O SERA PROGNOSTICS, INC. 2749 EAST PARLEYS WAY, SUITE 200 SALT LAKE CITY, UT84109 Chief Financial Officer Signatures /s/ Nishant Dharia, Attorney-in-fact 07/21/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Issuer's Series A-2 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series A-2 Preferred Stock has no expiration date. ( 2 )The Issuer's Series B-1 Preferred Stock is convertible at the option of a holder at any time into shares of the Issuer's Class A Common Stock at a conversion price, as adjusted to reflect the Issuer's recent 1-for-0.481 reverse stock split, of $5.20 per share. The Series B-1 Preferred Stock has no expiration date. ( 3 )The shares of preferred stock automatically converted into the Issuer's Class A Common Stock in accordance with the Issuer's Restated Certificate of Incorporation, as amended, immediately upon completion of the Issuer's initial public offering, which became effective on July 19, 2021.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.