Insider holders · CIK 0001274792
MERRIMACK PHARMACEUTICALS INC · MACK
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Gary L CrockerDirector | 2,943,961 | — | 2,943,961 | Apr 10, 2015 · 9:41 am EDT | Form 4 |
| Robert J. MulroyPresident and CEO | 1,683,328 | — | 1,683,328 | Mar 25, 2015 · 5:26 pm EDT | Form 4 |
| Michael E PorterDirector | 839,448 | — | 839,448 | Mar 13, 2017 · 9:04 pm EDT | Form 4 |
| Gordon J. FehrDirector | 215,143 | — | 215,143 | Apr 15, 2015 · 6:07 pm EDT | Form 4 |
| Daryl C DrummondHead of Research | 92,420 | 101,731 | 194,151 | May 12, 2017 · 5:00 pm EDT | Form 4 |
| John M. DineenDirector | 100,000 | — | 100,000 | Aug 13, 2015 · 8:34 am EDT | Form 4 |
| Birgit M. SchoeberlHead of Discovery | 65,657 | — | 65,657 | Jul 27, 2016 · 4:48 pm EDT | Form 4 |
| Vivian S LeeDirector | 65,000 | — | 65,000 | Feb 29, 2016 · 2:57 pm EST | Form 4 |
| Edward J. StewartHead of Commercial | 51,385 | — | 51,385 | Jul 27, 2016 · 4:51 pm EDT | Form 4 |
| Ulrik B. NielsenDirector | 22,681 | — | 22,681 | Sep 15, 2017 · 4:43 pm EDT | Form 4 |
| William M. McClementsHead of Corporate Operations | 14,072 | — | 14,072 | Mar 1, 2016 · 1:54 pm EST | Form 4 |
| William A. SullivanCFO and Treasurer | 11,000 | — | 11,000 | Jul 17, 2015 · 4:11 pm EDT | Form 4 |
| Russell T RayDirector | — | 10,000 | 10,000 | Jan 8, 2015 · 1:32 pm EST | Form 3 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.