Arturo Molina - Jan 29, 2022 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role
Chief Medical Officer
Signature
/s/ Edward C. Albini as attorney-in-fact for Arturo Molina
Stock symbol
STRO
Transactions as of
Jan 29, 2022
Transactions value $
-$22,349
Form type
4
Date filed
2/1/2022, 07:36 PM
Previous filing
Jan 13, 2022
Next filing
Mar 7, 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STRO Common Stock Options Exercise $0 +5.25K +19.82% $0.00 31.7K Jan 29, 2022 Direct
transaction STRO Common Stock Tax liability -$22.3K -2.15K -6.78% $10.39 29.6K Jan 29, 2022 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 -5.25K -33.33% $0.00 10.5K Jan 29, 2022 Common Stock 5.25K 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 the RSUs and 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 vest as to 1/4th of the total shares annually beginning on January 29, 2021, subject to continued service through each vesting date.