0001209191-22-040250.txt : 20220701 0001209191-22-040250.hdr.sgml : 20220701 20220701163407 ACCESSION NUMBER: 0001209191-22-040250 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220701 FILED AS OF DATE: 20220701 DATE AS OF CHANGE: 20220701 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Thomson Mary Christina CENTRAL INDEX KEY: 0001295674 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37490 FILM NUMBER: 221061940 MAIL ADDRESS: STREET 1: C/O SIERRA ONCOLOGY, INC. STREET 2: 1820 GATEWAY DRIVE, SUITE 110 CITY: SAN MATEO STATE: CA ZIP: 94404 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Sierra Oncology, Inc. CENTRAL INDEX KEY: 0001290149 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1820 GATEWAY DRIVE STREET 2: SUITE 110 CITY: SAN MATEO STATE: CA ZIP: 94404 BUSINESS PHONE: (605) 376-8679 MAIL ADDRESS: STREET 1: 1820 GATEWAY DRIVE STREET 2: SUITE 110 CITY: SAN MATEO STATE: CA ZIP: 94404 FORMER COMPANY: FORMER CONFORMED NAME: ProNAi Therapeutics Inc DATE OF NAME CHANGE: 20040513 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2022-07-01 1 0001290149 Sierra Oncology, Inc. SRRA 0001295674 Thomson Mary Christina C/O SIERRA ONCOLOGY, INC. 1820 GATEWAY DR., SUITE 110 SAN MATEO CA 94404 0 1 0 0 General Counsel Stock Option (right to buy) 13.04 2022-07-01 4 D 0 92000 0.00 D 2030-07-28 Common Stock 92000 0 D Stock Option (right to buy) 12.15 2022-07-01 4 D 0 49000 0.00 D 2030-08-12 Common Stock 49000 0 D Stock Option (right to buy) 16.73 2022-07-01 4 D 0 12900 0.00 D 2031-03-15 Common Stock 12900 0 D Stock Option (right to buy) 31.54 2022-07-01 4 D 0 35000 0.00 D 2032-03-14 Common Stock 35000 0 D The option vested as to 25% of the total shares on July 28, 2021, and then the remaining shares vest in equal monthly installments over the following 36 months, with 100% of the total shares vested on July 28, 2024, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Pursuant to the terms of the merger agreement between issuer, GlaxoSmithKline plc ("GSK") and a subsidiary of GSK, this option was cancelled on the effective date of the merger in exchange for a cash payment equal to, on a per share basis, the offer price of $55.00 less the exercise price. On August 12, 2020, the reporting person was granted an option to purchase 49,000 shares of common stock. The option vests based on the satisfaction by Issuer of certain performance criteria. The option vested as to 25% of the total shares subject to the option on March 15, 2022, and then 2.0833% of the shares subject to the option vest monthly thereafter, with 100% of the total shares subject to the option vested on March 15, 2025, subject to Reporting Person's provision of service to the Issuer on each vesting date. The option vests as to 25% of the total shares subject to the option on March 14, 2023, and then 2.0833% of the shares subject to the option vest monthly thereafter, with 100% of the total shares subject to the option vested on March 14, 2026, subject to Reporting Person's provision of service to the Issuer on each vesting date. /s/ Mary Christina Thomson 2022-07-01