Hans-Peter Gerber - Sep 18, 2023 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Role
Chief Scientific Officer
Signature
/s/ Edward C. Albini as attorney-in-fact for Hans-Peter Gerber
Stock symbol
STRO
Transactions as of
Sep 18, 2023
Transactions value $
$0
Form type
4
Date filed
9/19/2023, 05:19 PM
Next filing
Mar 7, 2024

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) Award $0 +175K $0.00 175K Sep 18, 2023 Common Stock 175K $3.77 Direct F1
transaction STRO Restricted Stock Unit (RSU) Award $0 +150K $0.00 150K Sep 18, 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 25% of the option award vests on September 18, 2024. The remainder vests ratably as to 1/48th of the total award monthly thereafter, subject to the reporting person's continued 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 RSU award vests annually as to 1/4th of the total award beginning on September 18, 2024, subject to the reporting person's continued service to the Issuer on each vesting date.