Anne Elizabeth Borgman - 29 Feb 2024 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Signature
/s/ Edward C. Albini as attorney-in-fact for Anne E. Borgman
Issuer symbol
STRO
Transactions as of
29 Feb 2024
Net transactions value
-$64,449
Form type
4
Filing time
04 Mar 2024, 16:15:38 UTC
Previous filing
23 Jun 2023
Next filing
07 Mar 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STRO Common Stock Options Exercise $0 +37,500 $0.000000 37,500 29 Feb 2024 Direct
transaction STRO Common Stock Tax liability $64,449 -13,126 -35% $4.91 24,374 29 Feb 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 -37,500 -25% $0.000000 112,500 29 Feb 2024 Common Stock 37,500 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 RSU award vests as to 1/4th of the total award annually on the last calendar day of February, beginning on February 29, 2024, subject to continued service through each vesting date.