Anne Borgman - Mar 15, 2023 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role
Chief Medical Officer
Signature
/s/ Edward C. Albini as attorney-in-fact for Anne E. Borgman
Stock symbol
STRO
Transactions as of
Mar 15, 2023
Transactions value $
$0
Form type
4
Date filed
3/17/2023, 04:05 PM
Previous filing
Mar 7, 2023
Next filing
Jun 23, 2023

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 Common Stock) Award $0 +175K $0.00 175K Mar 15, 2023 Common Stock 175K $5.40 Direct F1
transaction STRO Restricted Stock Unit (RSU) Award $0 +150K $0.00 150K Mar 15, 2023 Common Stock 150K 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 1/4th of the total shares on February 28, 2024 and then 1/48th of the total shares vest monthly thereafter, with 100% of the total shares vested and exercisable on February 28, 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 February 28, 2024, subject to continued service through each vesting date.