SEC Form 4 · accession 0001179110-15-012063
MERRIMACK PHARMACEUTICALS INC · MACK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Yasir B. Al-Wakeel
Officer — CFO and Head of Corp Dev
Period of report
Aug 11, 2015
Accepted (ET)
Aug 13, 2015 · 8:30 am EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001274792
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 | $10.08 | Aug 11, 2015 | A | 300,000 | A | — | Aug 10, 2025 | Common Stock | 300,000 | 300,000 | D |
Explanation of responses
- F1This option vests as to 1/6th of the total number of shares on 2/11/16 and an additional 1/12th of the total number of shares at the end of each successive three month period thereafter until 8/11/18.