Jane Chung - Dec 1, 2023 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
Dec 1, 2023
Transactions value $
$0
Form type
4
Date filed
12/4/2023, 04:19 PM
Previous filing
Aug 11, 2023
Next filing
Mar 5, 2024

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 Stock Option (right to buy) Award $0 +35K $0.00 35K Dec 1, 2023 Common Stock 35K $2.75 Direct F1
transaction STRO Restricted Stock Unit (RSU) Award $0 +100K $0.00 100K Dec 1, 2023 Common Stock 100K Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option vests as to 2.0833% of the total shares monthly, beginning on January 1, 2024, with 100% of the total shares vested and exercisable on December 1, 2027, subject to the reporting person's provision of service to the issuer on each vesting date.
F2 Each RSU represents a contingent right to receive one (1) share of the issuer's Common Stock upon settlement.
F3 The RSUs vest as to 1/4th of the total shares annually beginning on December 1, 2024, subject to continued service through each vesting date.