Insider Stock Trading History of Porter Michael E


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Porter Michael E since year 2005. The trader's CIK number is 1108494. At the time of this reporting, Porter Michael E is the Director of Merrimack Pharmaceuticals Inc . (stock ticker symbol MACK). See this page for all insider trading activities at Merrimack Pharmaceuticals Inc .

Note that in the past PORTER MICHAEL E also reported insider trading activities as an insider of the following companies:
Stock purchases, sales, and option exercises reported by insider Porter Michael E since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-03-10 MACK Merrimack Pharmaceuticals Inc Option Ex 85,000 2.69 228,650
2016-03-17 MACK Merrimack Pharmaceuticals Inc Buy 5,000 7.20 36,000
2016-03-15 MACK Merrimack Pharmaceuticals Inc Buy 5,000 7.65 38,250
2016-03-08 MACK Merrimack Pharmaceuticals Inc Buy 10,000 7.09 70,900
2016-03-02 MACK Merrimack Pharmaceuticals Inc Buy 5,000 6.63 33,150
2016-03-03 MACK Merrimack Pharmaceuticals Inc Buy 10,000 6.27 62,699
2016-03-01 MACK Merrimack Pharmaceuticals Inc Buy 10,000 6.60 66,000
2016-02-29 MACK Merrimack Pharmaceuticals Inc Buy 10,000 5.61 56,100
2015-08-21 MACK Merrimack Pharmaceuticals Inc Buy 5,000 9.76 48,800
2015-08-14 MACK Merrimack Pharmaceuticals Inc Buy 3,000 10.18 30,540
2015-08-13 MACK Merrimack Pharmaceuticals Inc Buy 10,000 10.65 106,500
2015-08-12 MACK Merrimack Pharmaceuticals Inc Buy 20,000 10.16 203,200
2015-05-13 MACK Merrimack Pharmaceuticals Inc Buy 8,284 11.79 97,668
2015-03-24 MACK Merrimack Pharmaceuticals Inc Buy 5,000 11.70 58,500
2015-03-20 MACK Merrimack Pharmaceuticals Inc Buy 5,000 11.77 58,850
2015-03-17 MACK Merrimack Pharmaceuticals Inc Buy 1,190 11.77 14,006
2015-03-11 MACK Merrimack Pharmaceuticals Inc Buy 5,000 11.33 56,650
2015-03-04 PTC Parametric Technology Corp Option Ex 9,134 .00 0
2015-03-02 MACK Merrimack Pharmaceuticals Inc Buy 5,000 10.93 54,650
2015-01-29 SMG Scotts Miracle-gro Co Option Ex 3,014 .00 0
2014-12-02 MACK Merrimack Pharmaceuticals Inc Buy 8,000 8.71 69,680
2014-11-21 MACK Merrimack Pharmaceuticals Inc Buy 5,675 9.00 51,075
2014-11-20 MACK Merrimack Pharmaceuticals Inc Buy 6,234 8.76 54,609
2014-11-14 MACK Merrimack Pharmaceuticals Inc Buy 5,000 8.29 41,449
2014-11-15 PTC Parametric Technology Corp Option Ex 3,107 .00 0
2014-11-12 MACK Merrimack Pharmaceuticals Inc Buy 40,000 8.37 334,799
2014-08-15 SMG Scotts Miracle-gro Co Buy 810 56.89 46,080
2014-06-23 MACK Merrimack Pharmaceuticals Inc Buy 32,390 6.84 221,547
2014-05-14 MACK Merrimack Pharmaceuticals Inc Buy 10,000 6.49 64,900
2014-05-16 MACK Merrimack Pharmaceuticals Inc Buy 5,000 6.50 32,500
2014-05-08 MACK Merrimack Pharmaceuticals Inc Option Ex 20,000 2.06 41,160
2014-05-08 MACK Merrimack Pharmaceuticals Inc Buy 5,000 6.48 32,400
2014-05-07 MACK Merrimack Pharmaceuticals Inc Buy 5,000 6.70 33,500
2014-05-05 MACK Merrimack Pharmaceuticals Inc Buy 5,000 6.12 30,600
2014-05-05 MACK Merrimack Pharmaceuticals Inc Buy 15,000 6.41 96,150
2014-03-05 PTC Parametric Technology Corp Option Ex 8,779 .00 0
2014-02-12 PTC Parametric Technology Corp Option Ex 10,000 11.47 114,750
2014-02-12 PTC Parametric Technology Corp Sale 10,000 37.18 371,780
2013-12-16 MACK Merrimack Pharmaceuticals Inc Buy 12,500 4.71 58,875
2013-12-17 MACK Merrimack Pharmaceuticals Inc Buy 12,500 4.79 59,937
2013-12-10 MACK Merrimack Pharmaceuticals Inc Buy 18,000 4.38 78,840
2013-12-03 MACK Merrimack Pharmaceuticals Inc Buy 5,000 4.25 21,255
2013-12-02 MACK Merrimack Pharmaceuticals Inc Buy 70,000 4.17 291,690
2013-11-27 MACK Merrimack Pharmaceuticals Inc Buy 50,000 3.51 175,350
2013-11-29 MACK Merrimack Pharmaceuticals Inc Buy 25,000 3.79 94,825
2013-05-14 SMG Scotts Miracle-gro Co Buy 500 48.25 24,125
2013-05-10 SMG Scotts Miracle-gro Co Buy 1,000 47.88 47,880
2013-01-28 PMTC Parametric Technology Corp Option Ex 10,000 4.97 49,750
2013-01-28 PMTC Parametric Technology Corp Sale 10,000 23.56 235,610
2012-12-17 MACK Merrimack Pharmaceuticals Inc Option Ex 15,000 2.19 32,850
2012-12-10 MACK Merrimack Pharmaceuticals Inc Buy 10,000 6.08 60,800
2012-05-29 PMTC Parametric Technology Corp Sale 10,000 20.59 205,930
2012-05-29 PMTC Parametric Technology Corp Option Ex 10,000 8.50 85,000
2012-05-23 PMTC Parametric Technology Corp Option Ex 10,000 8.50 85,000
2012-05-23 PMTC Parametric Technology Corp Sale 10,000 19.98 199,830
2012-04-03 MACK Merrimack Pharmaceuticals Inc Buy 12,500 7.00 87,500
2012-03-09 TMO Thermo Electron Corp Sale 3,750 56.42 211,575
2012-03-09 TMO Thermo Electron Corp Option Ex 3,750 26.53 99,487
2012-03-08 TMO Thermo Electron Corp Sale 3,750 56.05 210,187
2012-03-08 TMO Thermo Electron Corp Option Ex 3,750 26.53 99,487
2011-09-08 PMTC Parametric Technology Corp Option Ex 60,000 12.57 754,500
2011-09-08 PMTC Parametric Technology Corp Sale 51,900 16.73 868,027
2011-03-18 TMO Thermo Electron Corp Option Ex 7,500 28.73 215,475
2011-03-18 TMO Thermo Electron Corp Sale 7,500 52.94 397,050
2010-03-19 TMO Thermo Electron Corp Option Ex 1,600 18.85 30,160
2010-03-19 TMO Thermo Electron Corp Sale 1,600 49.93 79,888
2010-03-18 TMO Thermo Electron Corp Option Ex 900 18.85 16,965
2010-03-18 TMO Thermo Electron Corp Sale 900 50.25 45,225
2010-03-17 TMO Thermo Electron Corp Option Ex 2,500 18.85 47,125
2010-03-17 TMO Thermo Electron Corp Sale 2,500 50.00 125,000
2010-03-16 TMO Thermo Electron Corp Sale 2,500 49.51 123,762
2010-03-16 TMO Thermo Electron Corp Option Ex 2,500 18.85 47,125
2009-05-28 TMO Thermo Electron Corp Option Ex 10,000 18.31 183,100
2009-05-28 TMO Thermo Electron Corp Sale 10,000 38.08 380,800
2009-05-12 TMO Thermo Electron Corp Option Ex 1,000 18.86 18,860
2009-05-12 TMO Thermo Electron Corp Sale 1,000 36.60 36,600
2008-07-15 TMO Thermo Electron Corp Option Ex 3,944 18.09 71,346
2008-07-15 TMO Thermo Electron Corp Sale 2,900 55.39 160,639
2008-07-15 TMO Thermo Electron Corp Sale 1,044 55.13 57,551
2008-06-05 TMO Thermo Electron Corp Option Ex 3,500 18.09 63,315
2008-06-05 TMO Thermo Electron Corp Sale 3,500 59.05 206,675
2008-05-30 TMO Thermo Electron Corp Option Ex 5,000 18.09 90,450
2008-05-30 TMO Thermo Electron Corp Sale 5,000 59.02 295,075
2008-05-23 TMO Thermo Electron Corp Option Ex 5,000 18.09 90,450
2008-05-23 TMO Thermo Electron Corp Sale 5,000 57.91 289,550
2007-09-19 PMTC Parametric Technology Corp Option Ex 12,000 5.25 63,000
2006-08-08 PMTC Parametric Technology Corp Buy 1,000 14.28 14,280
2006-08-09 PMTC Parametric Technology Corp Buy 1,500 14.53 21,798
2006-02-06 PMTC Parametric Technology Corp Buy 4,000 6.57 26,280
2005-08-30 PMTC Parametric Technology Corp Buy 5,133 6.20 31,824
2005-08-12 PMTC Parametric Technology Corp Buy 2,267 6.26 14,202
2005-05-20 TMO Thermo Electron Corp Buy 500 27.25 13,625
2005-05-20 PMTC Parametric Technology Corp Buy 5,000 5.88 29,400
2005-03-18 TMO Thermo Electron Corp Buy 797 26.17 20,857

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Porter Michael E (Director of Merrimack Pharmaceuticals Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.