SEC Form 4 · accession 0001179110-15-007944
MERRIMACK PHARMACEUTICALS INC · MACK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Vivian S Lee
Director
Period of report
May 13, 2015
Accepted (ET)
May 18, 2015 · 7:51 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 | $11.88 | May 13, 2015 | A | 20,981 | A | — | May 12, 2025 | Common Stock | 20,981 | 20,981 | D |
Explanation of responses
- F1This option is fully vested.