SEC Form 4 · accession 0001209191-18-052496
SUTRO BIOPHARMA, INC. · STRO
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Stephen Worsley
Officer — Chief Business Officer
Period of report
Sep 26, 2018
Accepted (ET)
Sep 27, 2018 · 6:07 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001382101
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 Common Stock)F1 | $15.00 | Sep 26, 2018 | A | 203,056 | A | — | Sep 25, 2028 | Common Stock | 203,056 | 203,056 | D |
Explanation of responses
- F1The option vests as to 25% of the total shares on the one year anniversary of September 10, 2018 and then 2.0833% of the total shares vest monthly thereafter, with 100% of the total shares vested and exercisable on September 10, 2022, subject to the reporting person's provision of service to the issuer on each vesting date.