Heidi Hunter - 19 Nov 2021 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role
Director
Signature
/s/ Edward C. Albini as attorney-in-fact for Heidi Hunter
Issuer symbol
STRO
Transactions as of
19 Nov 2021
Net transactions value
$0
Form type
4
Filing time
22 Nov 2021, 16:29:18 UTC
Next filing
08 Jun 2022
SEC
View on sec.gov

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 +24,000 $0.000000 24,000 19 Nov 2021 Common Stock 24,000 $17.56 Direct F1
transaction STRO Stock Option (right to buy Common Stock) Award $0 +9,884 $0.000000 9,884 19 Nov 2021 Common Stock 9,884 $17.56 Direct F2
* 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 2.778% of the total shares monthly, beginning on December 19, 2021, with 100% of the total shares vested and exercisable on November 19, 2024, subject to the reporting person's provision of service to the issuer on each vesting date.
F2 The option vests as to 15.59% of the total shares monthly beginning on December 19, 2021 through May 19, 2022, and 6.45% on June 2, 2022, with 100% of the total shares vested and exercisable on the issuer's 2022 annual meeting of stockholders, subject to the reporting person's provision of service to the issuer on each vesting date.