SEC Form 4 · accession 0001209191-16-107647
Sierra Oncology, Inc. · SRRA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Richard A Messmann
Officer — Chief Medical Officer
Period of report
Mar 8, 2016
Accepted (ET)
Mar 10, 2016 · 5:13 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001290149
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F1 | $6.58 | Mar 8, 2016 | A | 25,000 | A | — | Mar 8, 2026 | Common Stock | 25,000 | 25,000 | D |
Explanation of responses
- F1The option vests as to 25% of the total shares on January 1, 2017, and then 2.0833% of the total shares vest monthly thereafter, with 100% of the total shares vested on January 1, 2020, subject to the reporting person's provision of service to the issuer on each vesting date.