Jonathan Root - Mar 3, 2021 Form 4 Insider Report for Silverback Therapeutics, Inc. (SPRY)

Role: Director
Signature: Dale Holladay, Attorney in Fact for the Reporting Person
Stock symbol: SPRY
Transactions as of: Mar 3, 2021
Transactions value $: $36,048
Form type: 4
Date filed: 3/18/2022, 05:14 PM
Previous filing: Mar 18, 2022
Next filing: May 17, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SPRY	Common Stock	Purchase	$18.2K	+350		$52.07	350	Mar 3, 2021	Directly owned by Spouse	F1
transaction	SPRY	Common Stock	Purchase	$17.8K	+2.01K	+575.43%	$8.85	2.36K	Nov 15, 2021	Directly owned by Spouse	F1
holding	SPRY	Common Stock						2.07M	Mar 3, 2021	Directly owned by USVP X	F2
holding	SPRY	Common Stock						105K	Mar 3, 2021	Directly owned by AFF X	F2
holding	SPRY	Common Stock						95.2K	Mar 3, 2021	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares are being reported following the discovery that shares of the issuer were purchased in discretionary IRA accounts held by the spouse of the reporting person. The reporting person is not an owner of such IRA accounts. The total in Column 5 of Table I does not reflect previously reported transactions that occurred after 3/3/2021.
F2	Presidio Management Group XII, L.L.C. (PMG XII), the general partner of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, USVP XII), has sole voting and dispositive power with respect to the shares held by USVP XII. The reporting person is a managing member of PMG XII, and shares voting and dispositive power with respect to the shares held by USVP XII. The reporting person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

Content

Shares are being reported following the discovery that shares of the issuer were purchased in discretionary IRA accounts held by the spouse of the reporting person. The reporting person is not an owner of such IRA accounts. The total in Column 5 of Table I does not reflect previously reported transactions that occurred after 3/3/2021.

Presidio Management Group XII, L.L.C. (PMG XII), the general partner of U.S. Venture Partners XII, L.P. and U.S. Venture Partners XII-A, L.P. (together, USVP XII), has sole voting and dispositive power with respect to the shares held by USVP XII. The reporting person is a managing member of PMG XII, and shares voting and dispositive power with respect to the shares held by USVP XII. The reporting person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.