SEC Form 4 · accession 0001485003-16-000168
Sesen Bio, Inc. · SESN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Abbie Celniker
Director
Period of report
Sep 20, 2016
Accepted (ET)
Sep 22, 2016 · 4:45 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001485003
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 | $0.28 | Sep 20, 2016 | A | 29,988 | A | Sep 20, 2016 | Feb 24, 2026 | Common Stock | 29,988 | 90,000 | D |
Explanation of responses
- F1On February 25, 2016, the reporting person was granted an option to purchase 90,000 shares of common stock. This option vests in installments based on the achievement of certain regulatory and business milestones. The Compensation Committee of the Company determined that one of these performance milestones was met, resulting in vesting of the option with respect to 29,988 shares. The option had previously vested with respect to 60,012 shares.