William J. Newell - 24 Sep 2021 Form 4 Insider Report for SUTRO BIOPHARMA, INC. (STRO)

Signature
/s/ Edward C. Albini as attorney-in-fact for William Newell
Issuer symbol
STRO
Transactions as of
24 Sep 2021
Net transactions value
-$254,201
Form type
4
Filing time
28 Sep 2021, 18:58:03 UTC
Next filing
03 Jan 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STRO Common Stock Gift $0 -104,662 -56% $0.000000 80,687 01 Jul 2021 Direct
transaction STRO Common Stock Gift $0 +104,662 $0.000000 104,662 01 Jul 2021 By William J. Newell Family Trust DTD 03/15/2019 F1
transaction STRO Common Stock Options Exercise $0 +25,253 +31% $0.000000 105,940 24 Sep 2021 Direct
transaction STRO Common Stock Tax liability $254,201 -13,219 -12% $19.23 92,721 24 Sep 2021 Direct F2
holding STRO Common Stock 10,577 24 Sep 2021 By Newell Family Revocable Trust DTD 08/14/2008 F3
holding STRO Common Stock 26,091 24 Sep 2021 By Taluswood Partners, L.P. F4

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 -25,253 -100% $0.000000* 0 24 Sep 2021 Common Stock 25,253 Direct F5, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The securities are held of record by the reporting person as trustee of the William J. Newell Family Trust DTD 03/15/2019.
F2 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.
F3 The securities are held of record by the reporting person as trustee of the Newell Family Revocable Trust DTD 08/14/2008.
F4 The reporting person is the general partner of Taluswood Partners, L.P. The reporting person disclaims beneficial ownership over such securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
F5 Each RSU represents a contingent right to receive one (1) share of the issuer's Common Stock upon settlement.
F6 The RSUs vest as to 1/3rd of the total shares annually beginning on September 26, 2019, subject to continued service through each vesting date.