• Info
  • Insider Trading

Insider Transactions Reported by 22 Insiders of Sierra Oncology, Inc.

Location
San Mateo, CA

There are no Buy or Sell transactions made by insiders since 12 Mar 2025

Sierra Oncology, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Joshua Richardson Director, 10%+ Owner $117,687,405 31 Jan 2022
Abingworth LLP 10%+ Owner $72,276,985 28 Jan 2022
Longitude Prime Partners, LLC 10%+ Owner $9,625,000 31 Jan 2022
Longitude Capital Partners III, LLC 10%+ Owner $440,825 27 Apr 2022
Kevin Norrett Chief Business Officer 01 Jul 2022
Robert Pelzer Director 01 Jul 2022
Gaurav Aggarwal Director 01 Jul 2022
Andrew R. Allen Director, 10%+ Owner 01 Jul 2022
Mary Christina Thomson General Counsel 01 Jul 2022
William D. Turner Chief Reg & Tech Ops Officer 01 Jul 2022
Sukhi Jagpal Chief Financial Officer 01 Jul 2022
Mona Ashiya Director, 10%+ Owner 01 Jul 2022
Jeffrey H. Cooper Director 01 Jul 2022
Andrew Sinclair Director 01 Jul 2022
Craig A. Collard Director 01 Jul 2022
Mark Kowalski Chief, Research & Early Dev 28 Jan 2022
Georgia Erbez Director 01 Jul 2022
Barbara Klencke Chief Medical Officer 01 Jul 2022
Vivo Opportunity, LLC Director, 10%+ Owner 01 Jul 2022
Christy J. Oliger Director 01 Jul 2022
ORBIMED ADVISORS LLC Director, 10%+ Owner 01 Jul 2022
STEPHEN GEORGE DILLY CEO and President, Director 01 Jul 2022

Recent Insider Transactions by Companies or Individuals for Sierra Oncology, Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Craig A. Collard Common Stock Disposed to Issuer -100% -13,500 0 01 Jul 2022 Direct
Craig A. Collard Stock Option (right to buy) Disposed to Issuer -100% -16,000 0 01 Jul 2022 Direct
STEPHEN GEORGE DILLY Common Stock Disposed to Issuer -100% -5,000 0 01 Jul 2022 Direct
STEPHEN GEORGE DILLY Stock Option (right to buy) Disposed to Issuer -100% -1,037,000 0 01 Jul 2022 Direct
Mary Christina Thomson Stock Option (right to buy) Disposed to Issuer -100% -188,900 0 01 Jul 2022 Direct
William D. Turner Stock Option (right to buy) Disposed to Issuer -100% -171,300 0 01 Jul 2022 Direct
Kevin Norrett Stock Option (right to buy) Disposed to Issuer -100% -195,700 0 01 Jul 2022 Direct
Christy J. Oliger Stock Option (right to buy) Disposed to Issuer -100% -18,000 0 01 Jul 2022 Direct
Mona Ashiya Common Stock Disposed to Issuer -100% -1,964,770 0 01 Jul 2022 See footnotes
Mona Ashiya Series A Warrants Disposed to Issuer -100% -1,477,124 0 01 Jul 2022 See footnotes
Mona Ashiya Stock Option (right to buy) Disposed to Issuer -100% -14,374 0 01 Jul 2022 Direct
Vivo Opportunity, LLC Common Stock Disposed to Issuer -100% -161,712 0 01 Jul 2022 By: Vivo Ventures Fund VII, L.P. and Vivo Ventures VII Affiliates Fund, L.P.
Vivo Opportunity, LLC Common Stock Disposed to Issuer -100% -2,735,853 0 01 Jul 2022 By: Vivo Opportunity Fund Holdings, L.P.
Vivo Opportunity, LLC Common Stock Disposed to Issuer -100% -431,947 0 01 Jul 2022 By: Vivo Capital Fund IX, L.P.
Vivo Opportunity, LLC Series A Warrants Disposed to Issuer -100% -75,749 0 01 Jul 2022 By: Vivo Ventures Fund VII, L.P. and Vivo Ventures VII Affiliates Fund, L.P.
Vivo Opportunity, LLC Series A Warrants Disposed to Issuer -100% -1,455,384 0 01 Jul 2022 By: Vivo Opportunity Fund Holdings, L.P.
Vivo Opportunity, LLC Series A Warrants Disposed to Issuer -100% -324,740 0 01 Jul 2022 By: Vivo Capital Fund IX, L.P.
Andrew Sinclair Common Stock, $0.001 par value Disposed to Issuer -100% -1,314,127 0 01 Jul 2022 See footnotes
Andrew Sinclair Series A Warrants (Right to Buy) Disposed to Issuer -100% -871,125 0 01 Jul 2022 See footnotes
Andrew Sinclair Stock Option (Right to Buy) Disposed to Issuer -100% -14,374 0 01 Jul 2022 Direct
Sukhi Jagpal Stock Option (right to buy) Disposed to Issuer -100% -249,536 0 01 Jul 2022 Direct
Barbara Klencke Common Stock Disposed to Issuer -100% -10,000 0 01 Jul 2022 Direct
Barbara Klencke Common Stock Disposed to Issuer -100% -5,000 0 01 Jul 2022 By spouse
Barbara Klencke Stock Option (right to buy) Disposed to Issuer -100% -332,551 0 01 Jul 2022 Direct
Jeffrey H. Cooper Stock Option (right to buy) Disposed to Issuer -100% -28,002 0 01 Jul 2022 Direct
Robert Pelzer Stock Option (right to buy) Disposed to Issuer -100% -26,327 0 01 Jul 2022 Direct
Andrew R. Allen Common Stock Disposed to Issuer -100% -1,650 0 01 Jul 2022 Direct
Andrew R. Allen Stock Option (right to buy) Disposed to Issuer -100% -20,655 0 01 Jul 2022 Direct
Gaurav Aggarwal Common Stock Disposed to Issuer -100% -2,735,853 0 01 Jul 2022 By: Vivo Opportunity Fund Holdings, L.P.
Gaurav Aggarwal Series A Warrant Disposed to Issuer -100% -1,455,384 0 01 Jul 2022 By: Vivo Opportunity Fund Holdings, L.P.
Gaurav Aggarwal Stock Option (right to buy) Disposed to Issuer -100% -14,374 0 01 Jul 2022 Direct
Georgia Erbez Stock Option (right to buy) Disposed to Issuer -100% -18,000 0 01 Jul 2022 Direct
Orbimed Advisors Llc Common Stock Disposed to Issuer -100% -1,964,770 0 01 Jul 2022 See footnotes
Orbimed Advisors Llc Series A Warrants Disposed to Issuer -100% -1,477,124 0 01 Jul 2022 See footnotes
William D. Turner Stock Option (Right to Buy) Award 12,250 12,250 17 Jun 2022 Direct
Barbara Klencke Stock Option (Right to Buy) Award 12,250 12,250 17 Jun 2022 Direct
Sukhi Jagpal Stock Option (Right to Buy) Award 12,250 12,250 17 Jun 2022 Direct
STEPHEN GEORGE DILLY Stock Option (Right to Buy) Award 65,000 65,000 17 Jun 2022 Direct
Mary Christina Thomson Stock Option (Right to Buy) Award 12,250 12,250 17 Jun 2022 Direct
Kevin Norrett Stock Option (Right to Buy) Award 12,250 12,250 17 Jun 2022 Direct
Longitude Capital Partners III, LLC Common Stock Other 16,030 8,015 27 Apr 2022 See footnote
Longitude Capital Partners III, LLC Common Stock Other -100% -2,139,771 0 27 Apr 2022 See footnote
William D. Turner Common Stock Options Exercise 6,347 6,347 06 Apr 2022 Direct
William D. Turner Common Stock Sale -100% $236,409 $37.25 -6,347 0 06 Apr 2022 Direct
William D. Turner Stock Option (Right to Buy) Options Exercise 6,347 0 06 Apr 2022 Direct
William D. Turner Common Stock Sale -100% $3,709 $37.09 -100 0 05 Apr 2022 Direct
William D. Turner Common Stock Options Exercise 100 100 05 Apr 2022 Direct
William D. Turner Stock Option (Right to Buy) Options Exercise 100 0 05 Apr 2022 Direct
Mary Christina Thomson Common Stock Sale -100% $70,277 $35.14 -2,000 0 04 Apr 2022 Direct
Mary Christina Thomson Common Stock Options Exercise 2,000 2,000 04 Apr 2022 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.