Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Merrimack Pharmaceuticals Inc (MACK) since 2014 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Merrimack Pharmaceuticals Inc. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1274792.
Total stock buying since 2014: $17,885,283.
Total stock sales since 2014: $14,549,189.
Total stock option exercises since 2014: $4,840,824.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2023 | 663,979 | $8,034,506 | 0 | $0 | 0 | $0 |
| 2022 | 311,313 | $1,460,406 | 0 | $0 | 0 | $0 |
| 2021 | 112,407 | $738,257 | 1,000 | $3,840 | 0 | $0 |
| 2020 | 652,561 | $2,157,539 | 193,509 | $606,263 | 0 | $0 |
| 2019 | 241,001 | $1,426,815 | 0 | $0 | 0 | $0 |
| 2017 | 0 | $0 | 33,549 | $438,004 | 118,549 | $628,436 |
| 2016 | 57,000 | $374,539 | 54,000 | $307,000 | 84,000 | $187,340 |
| 2015 | 177,474 | $1,844,864 | 728,987 | $8,525,680 | 1,220,056 | $2,498,011 |
| 2014 | 242,989 | $1,848,357 | 518,282 | $4,668,402 | 1,056,529 | $1,527,037 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2015-10-01 | Stewart Edward J. (Head of Commercial) | Option Ex | 4,000 | 1.81 | 7,240 |
| 2015-09-01 | Stewart Edward J. (Head of Commercial) | Sale | 6,000 | 9.88 | 59,280 |
| 2015-09-01 | Stewart Edward J. (Head of Commercial) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-08-21 | Porter Michael E (Director) | Buy | 5,000 | 9.76 | 48,800 |
| 2015-08-17 | Stewart Edward J. (Head of Commercial) | Sale | 6,000 | 10.49 | 62,940 |
| 2015-08-17 | Stewart Edward J. (Head of Commercial) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-08-14 | Porter Michael E | Buy | 3,000 | 10.18 | 30,540 |
| 2015-08-13 | Porter Michael E | Buy | 10,000 | 10.65 | 106,500 |
| 2015-08-12 | Dineen John M. | Buy | 100,000 | 10.15 | 1,015,000 |
| 2015-08-12 | Lee Vivian S | Buy | 10,000 | 10.05 | 100,500 |
| 2015-08-12 | Porter Michael E | Buy | 20,000 | 10.16 | 203,200 |
| 2015-07-20 | Nielsen Ulrik B. | Sale | 20,000 | 10.71 | 214,200 |
| 2015-07-20 | Nielsen Ulrik B. | Option Ex | 20,000 | 2.59 | 51,800 |
| 2015-07-15 | Stewart Edward J. (Head of Commercial) | Sale | 6,000 | 11.84 | 71,040 |
| 2015-07-15 | Stewart Edward J. (Head of Commercial) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-07-15 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 11.85 | 177,750 |
| 2015-07-15 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 2.12 | 31,800 |
| 2015-06-19 | Nielsen Ulrik B. | Sale | 40,000 | 12.02 | 480,800 |
| 2015-06-19 | Nielsen Ulrik B. | Option Ex | 40,000 | 2.53 | 101,199 |
| 2015-06-18 | Stewart Edward J. (Head of Commercial) | Sale | 2,000 | 12.00 | 24,000 |
| 2015-06-18 | Stewart Edward J. (Head of Commercial) | Option Ex | 2,000 | 1.81 | 3,620 |
| 2015-06-15 | Stewart Edward J. (Head of Commercial) | Sale | 6,000 | 10.67 | 64,020 |
| 2015-06-15 | Stewart Edward J. (Head of Commercial) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-06-15 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 10.65 | 159,750 |
| 2015-06-15 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 2.12 | 31,800 |
| 2015-06-09 | Schoeberl Birgit M. (Head of Discovery) | Option Ex | 62,057 | 2.12 | 131,560 |
| 2015-05-19 | Nielsen Ulrik B. | Sale | 40,000 | 13.04 | 521,599 |
| 2015-05-19 | Nielsen Ulrik B. | Option Ex | 40,000 | 2.47 | 98,800 |
| 2015-05-15 | Stewart Edward J. (Head of Commercial) | Sale | 8,000 | 12.33 | 98,640 |
| 2015-05-15 | Stewart Edward J. (Head of Commercial) | Option Ex | 8,000 | 1.81 | 14,480 |
| 2015-05-15 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 12.37 | 185,550 |
| 2015-05-15 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 2.12 | 31,800 |
| 2015-05-13 | Porter Michael E | Buy | 8,284 | 11.79 | 97,668 |
| 2015-04-20 | Nielsen Ulrik B. | Sale | 40,000 | 12.88 | 515,200 |
| 2015-04-20 | Nielsen Ulrik B. | Option Ex | 40,000 | 1.76 | 70,400 |
| 2015-04-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 8,000 | 12.79 | 102,320 |
| 2015-04-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 8,000 | 1.81 | 14,480 |
| 2015-04-15 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 12.87 | 193,050 |
| 2015-04-15 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 2.12 | 31,800 |
| 2015-04-13 | Fehr Gordon J. | Sale | 20,000 | 13.00 | 260,000 |
| 2015-04-13 | Fehr Gordon J. | Option Ex | 20,000 | 1.71 | 34,200 |
| 2015-04-02 | Crocker Gary L | Option Ex | 85,000 | 2.09 | 177,650 |
| 2015-03-24 | Mulroy Robert J. (President and CEO) | Sale | 103,968 | 11.71 | 1,217,465 |
| 2015-03-24 | Mulroy Robert J. (President and CEO) | Option Ex | 447,980 | 2.22 | 995,859 |
| 2015-03-24 | Porter Michael E | Buy | 5,000 | 11.70 | 58,500 |
| 2015-03-23 | Mulroy Robert J. (President and CEO) | Sale | 10,400 | 11.69 | 121,576 |
| 2015-03-23 | Mulroy Robert J. (President and CEO) | Option Ex | 10,400 | 1.71 | 17,784 |
| 2015-03-20 | Porter Michael E | Buy | 5,000 | 11.77 | 58,850 |
| 2015-03-19 | Nielsen Ulrik B. | Sale | 40,000 | 11.97 | 478,800 |
| 2015-03-19 | Nielsen Ulrik B. | Option Ex | 40,000 | 1.71 | 68,400 |
| 2015-03-19 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 11.97 | 179,550 |
| 2015-03-19 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 2.12 | 31,800 |
| 2015-03-17 | Schoeberl Birgit M. (Head of Discovery) | Sale | 21,337 | 12.00 | 256,044 |
| 2015-03-17 | Schoeberl Birgit M. (Head of Discovery) | Option Ex | 21,337 | 1.76 | 37,553 |
| 2015-03-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 2,000 | 12.00 | 24,000 |
| 2015-03-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 2,000 | 1.81 | 3,620 |
| 2015-03-17 | Porter Michael E | Buy | 1,190 | 11.77 | 14,006 |
| 2015-03-16 | Schoeberl Birgit M. (Head of Discovery) | Sale | 20,897 | 12.00 | 250,764 |
| 2015-03-16 | Schoeberl Birgit M. (Head of Discovery) | Option Ex | 20,897 | 1.76 | 36,778 |
| 2015-03-16 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 6,000 | 11.93 | 71,580 |
| 2015-03-16 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-03-11 | Porter Michael E | Buy | 5,000 | 11.33 | 56,650 |
| 2015-03-05 | Mulroy Robert J. (President and CEO) | Sale | 22,385 | 12.50 | 279,812 |
| 2015-03-05 | Mulroy Robert J. (President and CEO) | Option Ex | 22,385 | 1.71 | 38,278 |
| 2015-03-04 | Nielsen Ulrik B. | Sale | 20,000 | 12.01 | 240,200 |
| 2015-03-04 | Nielsen Ulrik B. | Option Ex | 20,000 | 1.71 | 34,200 |
| 2015-03-04 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 6,000 | 12.00 | 72,000 |
| 2015-03-04 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-03-02 | Porter Michael E | Buy | 5,000 | 10.93 | 54,650 |
| 2015-02-23 | Nielsen Ulrik B. | Sale | 20,000 | 10.91 | 218,200 |
| 2015-02-23 | Nielsen Ulrik B. | Option Ex | 20,000 | 1.71 | 34,200 |
| 2015-02-20 | Mulroy Robert J. (President and CEO) | Sale | 150,000 | 10.94 | 1,641,000 |
| 2015-02-20 | Mulroy Robert J. (President and CEO) | Option Ex | 150,000 | 1.71 | 256,500 |
| 2015-02-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 6,000 | 10.31 | 61,860 |
| 2015-02-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2015-01-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 6,000 | 11.19 | 67,140 |
| 2015-01-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 6,000 | 1.81 | 10,860 |
| 2014-12-24 | Sullivan William A. (CFO and Treasurer) | Sale | 15,000 | 10.70 | 160,500 |
| 2014-12-24 | Sullivan William A. (CFO and Treasurer) | Option Ex | 15,000 | 1.81 | 27,150 |
| 2014-12-23 | Lee Vivian S | Buy | 20,000 | 10.23 | 204,600 |
| 2014-12-18 | Sinskey Anthony J | Sale | 20,000 | 10.31 | 206,200 |
| 2014-12-18 | Sinskey Anthony J | Option Ex | 20,000 | 1.71 | 34,200 |
| 2014-12-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 6,000 | 10.63 | 63,780 |
| 2014-12-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 6,000 | 1.76 | 10,560 |
| 2014-12-08 | Mulroy Robert J. (President and CEO) | Sale | 25,000 | 9.73 | 243,250 |
| 2014-12-08 | Mulroy Robert J. (President and CEO) | Option Ex | 118,247 | 1.40 | 165,900 |
| 2014-12-05 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 3,000 | 10.00 | 30,000 |
| 2014-12-05 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 3,000 | 1.71 | 5,130 |
| 2014-12-05 | Mulroy Robert J. (President and CEO) | Sale | 175,000 | 9.85 | 1,723,750 |
| 2014-12-05 | Mulroy Robert J. (President and CEO) | Option Ex | 175,000 | 1.25 | 218,750 |
| 2014-12-02 | Porter Michael E | Buy | 8,000 | 8.71 | 69,680 |
| 2014-11-21 | Porter Michael E | Buy | 5,675 | 9.00 | 51,075 |
| 2014-11-20 | Porter Michael E | Buy | 6,234 | 8.76 | 54,609 |
| 2014-11-18 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 1,000 | 9.00 | 9,000 |
| 2014-11-18 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 1,000 | 1.71 | 1,710 |
| 2014-11-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 4,000 | 8.44 | 33,760 |
| 2014-11-17 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 4,000 | 1.71 | 6,840 |
| 2014-11-14 | Porter Michael E | Buy | 5,000 | 8.29 | 41,449 |
| 2014-11-13 | Crocker Gary L | Buy | 8,630 | 8.37 | 72,233 |
| 2014-11-12 | Porter Michael E | Buy | 40,000 | 8.37 | 334,799 |
| 2014-11-12 | Crocker Gary L | Buy | 5,760 | 8.62 | 49,651 |
| 2014-10-23 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 3,000 | 9.05 | 27,150 |
| 2014-10-23 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 3,000 | 1.71 | 5,130 |
| 2014-10-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 4,000 | 8.00 | 32,000 |
| 2014-10-15 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 4,000 | 1.71 | 6,840 |
| 2014-09-30 | Sullivan William A. (CFO and Treasurer) | Sale | 40,878 | 8.94 | 365,449 |
| 2014-09-30 | Sullivan William A. (CFO and Treasurer) | Option Ex | 40,878 | 2.69 | 109,961 |
| 2014-09-29 | Sullivan William A. (CFO and Treasurer) | Sale | 64,404 | 8.40 | 540,993 |
| 2014-09-29 | Sullivan William A. (CFO and Treasurer) | Option Ex | 64,404 | 2.12 | 136,536 |
| 2014-09-24 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 12,000 | 8.22 | 98,640 |
| 2014-09-24 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 12,000 | 1.71 | 20,520 |
| 2014-08-29 | Mulroy Robert J. (President and CEO) | Option Ex | 19,832 | 1.25 | 24,790 |
| 2014-08-26 | Nielsen Ulrik B. (SVP and CSO) | Option Ex | 50,000 | 1.25 | 62,500 |
| 2014-08-26 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 24,000 | 6.87 | 164,880 |
| 2014-08-26 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 24,000 | 1.25 | 30,000 |
| 2014-08-25 | Sinskey Anthony J | Option Ex | 25,000 | 1.25 | 31,250 |
| 2014-08-21 | Mulroy Robert J. (President and CEO) | Option Ex | 280,168 | 1.25 | 350,210 |
| 2014-06-23 | Porter Michael E | Buy | 32,390 | 6.84 | 221,547 |
| 2014-06-23 | Crocker Gary L | Buy | 36,000 | 6.84 | 246,240 |
| 2014-06-02 | Dresser James Van B. | Option Ex | 25,000 | 1.25 | 31,250 |
| 2014-05-27 | Nielsen Ulrik B. (SVP and CSO) | Sale | 105,000 | 8.01 | 841,050 |
| 2014-05-27 | Nielsen Ulrik B. (SVP and CSO) | Option Ex | 105,000 | 1.48 | 155,400 |
| 2014-05-27 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Sale | 16,000 | 8.00 | 128,000 |
| 2014-05-27 | Stewart Edward J. (SVP & Pres, Healthcare Sol) | Option Ex | 16,000 | 1.25 | 20,000 |
| 2014-05-20 | Crocker Gary L | Buy | 4,000 | 6.69 | 26,760 |
| 2014-05-19 | Quigley James H. | Buy | 5,000 | 6.58 | 32,900 |
| 2014-05-19 | Crocker Gary L | Buy | 6,000 | 6.71 | 40,260 |
| 2014-05-16 | Porter Michael E | Buy | 5,000 | 6.50 | 32,500 |
| 2014-05-16 | Crocker Gary L | Buy | 3,400 | 6.63 | 22,542 |
| 2014-05-14 | Porter Michael E | Buy | 10,000 | 6.49 | 64,900 |
| 2014-05-13 | Sinskey Anthony J | Buy | 5,000 | 6.74 | 33,700 |
| 2014-05-12 | Fehr Gordon J. | Option Ex | 25,000 | 1.25 | 31,250 |
| 2014-05-08 | Porter Michael E | Buy | 5,000 | 6.48 | 32,400 |
| 2014-05-08 | Porter Michael E | Option Ex | 20,000 | 2.06 | 41,160 |
| 2014-05-07 | Nash Sarah E | Buy | 15,000 | 6.79 | 101,850 |
| 2014-05-07 | Porter Michael E | Buy | 5,000 | 6.70 | 33,500 |
| 2014-05-07 | Crocker Gary L | Buy | 4,400 | 6.77 | 29,787 |
| 2014-05-06 | Crocker Gary L | Buy | 7,500 | 6.85 | 51,375 |
Insider trading activities including stock purchases, stock sales, and option exercises of MACK listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Merrimack Pharmaceuticals Inc (symbol MACK, CIK number 1274792) see the Securities and Exchange Commission (SEC) website.