SEC Form 4 · accession 0001179110-15-009843
MERRIMACK PHARMACEUTICALS INC · MACK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Edward J. Stewart
Officer — Head of Commercial
Period of report
Jun 15, 2015
Accepted (ET)
Jun 15, 2015 · 6:12 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001274792
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jun 15, 2015 | M | 6,000 | $1.81 | A | 27,385 | D | |
| Common StockF2 | Jun 15, 2015 | S | 6,000 | $10.67 | D | 21,385 | D |
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)F3 | $1.81 | Jun 15, 2015 | M | 6,000 | D | — | Sep 22, 2018 | Common Stock | 6,000 | 49,000 | D |
Explanation of responses
- F1This transaction was effected pursuant to a Rule 10b5-1 trading plan.
- F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.51 to $10.85, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
- F3This option is fully vested.