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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1290149	Sierra Oncology Inc.	SRRA	Pharmaceutical Preparations (2834)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1551965	Gaurav Aggarwal	C/O Sierra Oncology, Inc. 1820 Gateway Drive, Suite 110 San Mateo CA 94404		Yes	No	Yes	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2022-01-31	800,000	$27.00	2,735,853	No	4	P	Indirect	By Vivo Opportunity Fund, L.P.

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Indirect	By Vivo Opportunity Fund, L.P.

Footnotes

The Reporting Person is a managing member of Vivo Opportunity, LLC, which is the general partner of Vivo Opportunity Fund, L.P. The Reporting Person may be deemed to share voting and dispositive power over the securities held by Vivo Opportunity Fund, L.P. with four other managing members of Vivo Opportunity, LLC. The Reporting Person disclaims beneficial ownership over such securities except to the extent of his 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 purposes.