Robert J. Mulroy serves as Executive at MERRIMACK PHARMACEUTICALS INC, where they oversee executive responsibilities. Since joining the company, Robert J. Mulroy has executed 34 insider transactions totaling $5.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Mar 24, 2015 involved exercising options for 94,338 shares valued at $200.0K.
Robert J. Mulroy currently holds 1,683,328 shares of MERRIMACK PHARMACEUTICALS INC (MACK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert J. Mulroy has been a net seller of MACK stock. They have purchased $177.9K and sold $5.2M worth of shares.
Robert J. Mulroy's most recent insider trade was on Mar 24, 2015, when they sold 94,338 shares at $2.12 per share.
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| 26,689 |
| $2.59 |
| Discretionary |
| Mar 24, 2015 | MACK | $130.9K | Option Exercise | 52,985 | $2.47 | Discretionary |
| Mar 24, 2015 | MACK | $1.2M | Sale | 103,968 | $11.71 | Discretionary |
| Mar 24, 2015 | MACK | $468.5K | Option Exercise | 273,968 | $1.71 | Discretionary |
| Mar 23, 2015 | MACK | $17.8K | Option Exercise | 10,400 | $1.71 | Discretionary |
| Mar 23, 2015 | MACK | $121.6K | Sale | 10,400 | $11.69 | Discretionary |
| Mar 5, 2015 | MACK | $279.8K | Sale | 22,385 | $12.50 | Discretionary |
| Mar 5, 2015 | MACK | $38.3K | Option Exercise | 22,385 | $1.71 | Discretionary |
| Feb 20, 2015 | MACK | $1.6M | Sale | 150,000 | $10.94 | Discretionary |
| Feb 20, 2015 | MACK | $256.5K | Option Exercise | 150,000 | $1.71 | Discretionary |
| Dec 8, 2014 | MACK | $243.3K | Sale | 25,000 | $9.73 | Discretionary |
| Dec 8, 2014 | MACK | $32.3K | Option Exercise | 25,837 | $1.25 | Discretionary |
| Dec 8, 2014 | MACK | $61.5K | Option Exercise | 49,163 | $1.25 | Discretionary |
| Dec 8, 2014 | MACK | $74.0K | Option Exercise | 43,247 | $1.71 | Discretionary |
| Dec 5, 2014 | MACK | $1.7M | Sale | 175,000 | $9.85 | Discretionary |
| Dec 5, 2014 | MACK | $218.8K | Option Exercise | 175,000 | $1.25 | Discretionary |
| Aug 29, 2014 | MACK | $24.8K | Option Exercise | 19,832 | $1.25 | Discretionary |
| Aug 21, 2014 | MACK | $350.2K | Option Exercise | 280,168 | $1.25 | Discretionary |
| May 5, 2014 | MACK | $31.6K | Purchase | 5,000 | $6.31 | Discretionary |
| Dec 4, 2013 | MACK | $146.3K | Purchase | 33,100 | $4.42 | Discretionary |
| Dec 2, 2013 | MACK | $0 | Will Acquisition | 58,290 | $N/A | Discretionary |
| Dec 2, 2013 | MACK | $0 | Will Acquisition | 9,715 | $N/A | Discretionary |
| May 6, 2013 | MACK | $109.5K | Option Exercise | 50,000 | $2.19 | Discretionary |
| Jan 4, 2013 | MACK | $0 | Will Acquisition | 58,290 | $N/A | Discretionary |
| Jan 4, 2013 | MACK | $0 | Will Acquisition | 7,443 | $N/A | Discretionary |
| Jun 15, 2012 | MACK | $164.3K | Option Exercise | 75,000 | $2.19 | Discretionary |
| Jun 15, 2012 | MACK | $164.3K | Option Exercise | 75,000 | $2.19 | Discretionary |
| Apr 3, 2012 | MACK | $0 | Conversion | 17,142 | $N/A | Discretionary |
| Apr 3, 2012 | MACK | $0 | Conversion | 142,850 | $N/A | Discretionary |