SERA PROGNOSTICS, INC. — Director's Dealing 2025

Jun 7, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SERA PROGNOSTICS, INC. (SERA)
CIK: 0001534969
Period of Report: 2025-06-05

Reporting Person: Mirza Mansoor Raza (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-06-05	Class A Common Stock	A	15596	—	Acquired	59268	Direct
2025-06-06	Class A Common Stock	S	107	$1.58	Disposed	59161	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-06-05	Stock Option (right to buy)	$1.6	A	25000	Acquired	2035-06-05	Class A Common Stock (25000)	Direct

Footnotes

F1: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

F2: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F3: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.