Joshua Richardson - Jan 31, 2022 Form 4 Insider Report for Sierra Oncology, Inc. (SRRA)

Role: Director, 10%+ Owner
Signature: /s/ Joshua Richardson
Stock symbol: SRRA
Transactions as of: Jan 31, 2022
Transactions value $: $4,725,000
Form type: 4
Date filed: 2/2/2022, 08:24 PM
Previous filing: Jan 27, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SRRA	Common Stock	Purchase	$4.73M	+175K		$27.00	175K	Feb 2, 2022	See footnote	F1
holding	SRRA	Common Stock						1.96M	Jan 31, 2022	See footnote	F2

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

Explanation of Responses:

Id	Content
F1	The securities are held directly by Longitude Prime Fund, L.P. ("LPF"). Longitude Prime Partners, LLC ("LPP"), the general partner of LPF, may be deemed to have voting and investment power with respect to the shares held by LPF. Patrick G. Enright, Juliet Tammenoms Bakker and the Reporting Person, a member of the Issuer's board of directors, are each members of LPF and may be deemed to share voting, investment and dispositive power over such securities. Mr. Enright and Ms. Tammenoms Bakker are the managing members of LPP. Each of Mr. Enright, Ms. Tammenoms Bakker and the Reporting Person disclaim beneficial ownership of such shares except to the extent of their respective pecuniary interests therein, and the inclusion of such 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 purpose.
F2	The securities are held directly by Longitude Venture Partners III, L.P. ("LVP III"). Longitude Capital Partners III, LLC ("LCP III") is the general partner of LVP III and may be deemed to have voting, investment and dispositive power with respect to such securities. Patrick G. Enright, Juliet Tammenoms Bakker and the Reporting Person, a member of the Issuer's board of directors, are each members of LCP III and may be deemed to share voting, investment and dispositive power over such securities. Mr. Enright and Ms. Tammenoms Bakker are the managing members of LCP III. Each of LCP III, Mr. Enright, Ms. Tammenoms Bakker and the Reporting Person disclaim beneficial ownership over such securities except to the extent of their respective pecuniary interest therein, and the inclusion of such 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 purpose.

Content

The securities are held directly by Longitude Prime Fund, L.P. ("LPF"). Longitude Prime Partners, LLC ("LPP"), the general partner of LPF, may be deemed to have voting and investment power with respect to the shares held by LPF. Patrick G. Enright, Juliet Tammenoms Bakker and the Reporting Person, a member of the Issuer's board of directors, are each members of LPF and may be deemed to share voting, investment and dispositive power over such securities. Mr. Enright and Ms. Tammenoms Bakker are the managing members of LPP. Each of Mr. Enright, Ms. Tammenoms Bakker and the Reporting Person disclaim beneficial ownership of such shares except to the extent of their respective pecuniary interests therein, and the inclusion of such 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 purpose.

The securities are held directly by Longitude Venture Partners III, L.P. ("LVP III"). Longitude Capital Partners III, LLC ("LCP III") is the general partner of LVP III and may be deemed to have voting, investment and dispositive power with respect to such securities. Patrick G. Enright, Juliet Tammenoms Bakker and the Reporting Person, a member of the Issuer's board of directors, are each members of LCP III and may be deemed to share voting, investment and dispositive power over such securities. Mr. Enright and Ms. Tammenoms Bakker are the managing members of LCP III. Each of LCP III, Mr. Enright, Ms. Tammenoms Bakker and the Reporting Person disclaim beneficial ownership over such securities except to the extent of their respective pecuniary interest therein, and the inclusion of such 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 purpose.