STEPHEN GEORGE DILLY - 19 May 2021 Form 4 Insider Report for Sierra Oncology, Inc.

Role: CEO and President, Director
Signature: /s/ Stephen George Dilly (By: Mary Christina Thomson, Attorney-In-Fact)
Issuer symbol: N/A
Transactions as of: 19 May 2021
Net transactions value: +$89,150
Form type: 4
Filing time: 20 May 2021, 18:59:53 UTC
Next filing: 17 Jun 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SRRA	Common Stock	Purchase	$89,150	+5,000		$17.83	5,000	19 May 2021	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares purchased. These shares were purchased in multiple transactions at prices ranging from $17.78 to $17.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth herein.

Content

The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares purchased. These shares were purchased in multiple transactions at prices ranging from $17.78 to $17.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the SEC staff, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth herein.