Jane Chung - Aug 9, 2024 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role: PRESIDENT AND COO
Signature: /s/ Edward C. Albini as attorney-in-fact for Jane Chung
Stock symbol: STRO
Transactions as of: Aug 9, 2024
Transactions value $: -$20,870
Form type: 4
Date filed: 8/13/2024, 04:16 PM
Previous filing: Jun 24, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	STRO	Common Stock	Options Exercise	$0	+18.8K	+44.43%	$0.00	61K	Aug 9, 2024	Direct
transaction	STRO	Common Stock	Tax liability	-$20.9K	-6.69K	-10.97%	$3.12	54.3K	Aug 9, 2024	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	STRO	Restricted Stock Unit (RSU)	Options Exercise	$0	-18.8K	-50%	$0.00	18.8K	Aug 9, 2024	Common Stock	18.8K		Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Represents the number of shares of Common Stock that have been withheld by the issuer to satisfy its income tax withholding and remittance obligations in connection with the net settlement of restricted stock units; does not represent a sale by the reporting person.
F2	Each RSU represents a contingent right to receive one (1) share of the issuer's Common Stock upon settlement.
F3	The RSUs vested or vest as to 1/4th of the total award annually beginning on August 9, 2022, subject to the reporting person's provision of service to the issuer on each vesting date.