Robert Gardner Harrison - Mar 6, 2023 Form 4 Insider Report for SERA PROGNOSTICS, INC. (SERA)

Role: Chief Information Officer
Signature: /s/ Benjamin G. Jackson, Attorney-in-fact
Stock symbol: SERA
Transactions as of: Mar 6, 2023
Transactions value $: $0
Form type: 4
Date filed: 3/7/2023, 06:50 PM
Previous filing: Mar 25, 2022
Next filing: Jun 6, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SERA	Class A Common Stock	Award	$0	+28.5K		$0.00	28.5K	Mar 6, 2023	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SERA	Stock Option (right to buy)	Award	$0	+45K		$0.00	45K	Mar 6, 2023	Class A Common Stock	45K	$3.80	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over four years as follows: 1/4 of the original grant amount vests in annual installments for four years following the vesting commencement date, which is March 6, 2023, subject to the reporting person continuing to provide services to the issuer.
F2	These stock options vest over four years as follows: 1/48 of the original grant amount vests in monthly installments for four years following the vesting commencement date, which is March 6, 2023, subject to the reporting person continuing to provide services to the issuer.