SERA PROGNOSTICS, INC. — Director's Dealing 2025

Oct 16, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SERA PROGNOSTICS, INC. (SERA)
CIK: 0001534969
Period of Report: 2025-10-15

Reporting Person: Inglis Tiffany Eul Davis (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-15	Class A Common Stock	A	75000	—	Acquired	75000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-15	Stock Option (right to buy)	$3.13	A	107000	Acquired	2035-10-15	Class A Common Stock (107000)	Direct

Footnotes

F1: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is October 10, 2025, and 1/12 of the remaining amount vests in quarterly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.

F2: These stock options vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is October 10, 2025, and 1/36 of the remaining amount vests in monthly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.