Nicki Vasquez - Aug 9, 2021 Form 3 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role
Chief Port. Strat & Alnce Ofcr
Signature
/s/ Edward C. Albini as attorney-in-fact
Stock symbol
STRO
Transactions as of
Aug 9, 2021
Transactions value $
$0
Form type
3
Date filed
8/11/2021, 05:22 PM
Next filing
Sep 28, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding STRO Common Stock 7.27K Aug 9, 2021 Direct

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
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 27.8K $11.98 Direct F1
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 4.85K $11.98 Direct F1
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 107K $15.00 Direct F2
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 15.6K $10.45 Direct F3
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 30K $10.09 Direct F4
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 45K $21.11 Direct F5
holding STRO Stock Option (right to buy) Aug 9, 2021 Common Stock 12.5K $18.12 Direct F6
holding STRO Restricted Stock Unit (RSU) Aug 9, 2021 Common Stock 5.97K Direct F7, F8
holding STRO Restricted Stock Unit (RSU) Aug 9, 2021 Common Stock 7.5K Direct F8, F9
holding STRO Restricted Stock Unit (RSU) Aug 9, 2021 Common Stock 22K Direct F8, F10
holding STRO Restricted Stock Unit (RSU) Aug 9, 2021 Common Stock 13K Direct F8, F11
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option is fully vested and exercisable.
F2 The option vests as to 2.0833% of the total shares monthly, beginning on October 26, 2018, with 100% of the total shares vested and exercisable on September 26, 2022, subject to the reporting person's provision of service to the issuer on each vesting date.
F3 The option vests as to 2.0833% of the total shares monthly, beginning on February 28, 2019, with 100% of the total shares vested and exercisable on January 29, 2023, subject to the reporting person's provision of service to the issuer on each vesting date.
F4 The option vests as to 2.0833% of the total shares monthly, beginning on February 29, 2020, with 100% of the total shares vested and exercisable on January 29, 2024, subject to the reporting person's provision of service to the issuer on each vesting date.
F5 The option vests as to 2.0833% of the total shares monthly, beginning on April 5, 2021, with 100% of the total shares vested and exercisable on March 5, 2025, subject to the reporting person's provision of service to the issuer on each vesting date.
F6 The option vests as to 2.0833% of the total shares monthly, beginning on August 12, 2021, with 100% of the total shares vested and exercisable on July 12, 2025, subject to the reporting person's provision of service to the issuer on each vesting date.
F7 The RSUs vest as to 1/3rd of the total shares annually beginning on September 26, 2019, subject to the reporting person's provision of service to the issuer on each vesting date.
F8 Each RSU represents a contingent right to receive one (1) share of the issuer's Common Stock upon settlement.
F9 The RSUs vest as to 1/4th of the total shares annually beginning on January 29, 2021, subject to the reporting person's provision of service to the issuer on each vesting date.
F10 The RSUs vest as to 1/4th of the total shares annually beginning on March 5, 2022, subject to the reporting person's provision of service to the issuer on each vesting date.
F11 The RSUs vest as to 1/4th of the total shares annually beginning on July 12, 2022, subject to the reporting person's provision of service to the issuer on each vesting date.

Remarks:

Exhibit 24.1 - Power of Attorney