- Company Directors - P
- Porter Michael E
Insider Trading History of Porter Michael E
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Porter Michael E since 2005.
The trader's CIK number is 1108494.
At the time of the last reporting, Porter Michael E was the Director of Merrimack Pharmaceuticals Inc. (stock ticker symbol MACK).
Also see 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:
Yearly summary of insider trading at Merrimack Pharmaceuticals Inc (MACK) by Porter Michael E
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | MACK | 0 | $0 | 0 | $0 | 85,000 | $228,650 |
| 2016 | MACK | 55,000 | $363,099 | 0 | $0 | 0 | $0 |
| 2015 | MACK | 67,474 | $729,364 | 0 | $0 | 0 | $0 |
| 2014 | MACK | 142,299 | $1,063,209 | 0 | $0 | 20,000 | $41,160 |
| 2013 | MACK | 193,000 | $780,772 | 0 | $0 | 0 | $0 |
| 2012 | MACK | 22,500 | $148,300 | 0 | $0 | 15,000 | $32,850 |
Yearly summary of insider trading at Thermo Fisher Scientific Inc. (TMO) by Porter Michael E
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2012 | TMO | 0 | $0 | 7,500 | $421,762 | 7,500 | $198,974 |
| 2011 | TMO | 0 | $0 | 7,500 | $397,050 | 7,500 | $215,475 |
| 2010 | TMO | 0 | $0 | 7,500 | $373,875 | 7,500 | $141,375 |
| 2009 | TMO | 0 | $0 | 11,000 | $417,400 | 11,000 | $201,960 |
| 2008 | TMO | 0 | $0 | 17,444 | $1,009,490 | 17,444 | $315,561 |
| 2005 | TMO | 1,297 | $34,482 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Ptc Inc. (PTC) by Porter Michael E
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2015 | PTC | 0 | $0 | 0 | $0 | 9,134 | $0 |
| 2014 | PTC | 0 | $0 | 10,000 | $371,780 | 21,886 | $114,750 |
| 2013 | PTC | 0 | $0 | 10,000 | $235,610 | 10,000 | $49,750 |
| 2012 | PTC | 0 | $0 | 20,000 | $405,760 | 20,000 | $170,000 |
| 2011 | PTC | 0 | $0 | 51,900 | $868,027 | 60,000 | $754,500 |
| 2007 | PTC | 0 | $0 | 0 | $0 | 12,000 | $63,000 |
| 2006 | PTC | 6,500 | $62,358 | 0 | $0 | 0 | $0 |
| 2005 | PTC | 12,400 | $75,426 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Scotts Miracle-gro Co (SMG) by Porter Michael E
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2015 | SMG | 0 | $0 | 0 | $0 | 3,014 | $0 |
| 2014 | SMG | 810 | $46,080 | 0 | $0 | 0 | $0 |
| 2013 | SMG | 1,500 | $72,005 | 0 | $0 | 0 | $0 |
Insider trading activities at 4 companies by Porter Michael E:
1. Merrimack Pharmaceuticals Inc (MACK)
2. Thermo Fisher Scientific Inc. (TMO)
3. Ptc Inc. (PTC)
4. Scotts Miracle-gro Co (SMG)
Table 1. Insider trading of Merrimack Pharmaceuticals Inc (MACK) by Porter Michael E
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-03-10 | MACK | Option Ex | 85,000 | 2.69 | 228,650 |
| 2016-03-17 | MACK | Buy | 5,000 | 7.20 | 36,000 |
| 2016-03-15 | MACK | Buy | 5,000 | 7.65 | 38,250 |
| 2016-03-08 | MACK | Buy | 10,000 | 7.09 | 70,900 |
| 2016-03-02 | MACK | Buy | 5,000 | 6.63 | 33,150 |
| 2016-03-03 | MACK | Buy | 10,000 | 6.27 | 62,699 |
| 2016-03-01 | MACK | Buy | 10,000 | 6.60 | 66,000 |
| 2016-02-29 | MACK | Buy | 10,000 | 5.61 | 56,100 |
| 2015-08-21 | MACK | Buy | 5,000 | 9.76 | 48,800 |
| 2015-08-14 | MACK | Buy | 3,000 | 10.18 | 30,540 |
| 2015-08-13 | MACK | Buy | 10,000 | 10.65 | 106,500 |
| 2015-08-12 | MACK | Buy | 20,000 | 10.16 | 203,200 |
| 2015-05-13 | MACK | Buy | 8,284 | 11.79 | 97,668 |
| 2015-03-24 | MACK | Buy | 5,000 | 11.70 | 58,500 |
| 2015-03-20 | MACK | Buy | 5,000 | 11.77 | 58,850 |
| 2015-03-17 | MACK | Buy | 1,190 | 11.77 | 14,006 |
| 2015-03-11 | MACK | Buy | 5,000 | 11.33 | 56,650 |
| 2015-03-02 | MACK | Buy | 5,000 | 10.93 | 54,650 |
| 2014-12-02 | MACK | Buy | 8,000 | 8.71 | 69,680 |
| 2014-11-21 | MACK | Buy | 5,675 | 9.00 | 51,075 |
| 2014-11-20 | MACK | Buy | 6,234 | 8.76 | 54,609 |
| 2014-11-14 | MACK | Buy | 5,000 | 8.29 | 41,449 |
| 2014-11-12 | MACK | Buy | 40,000 | 8.37 | 334,799 |
| 2014-06-23 | MACK | Buy | 32,390 | 6.84 | 221,547 |
| 2014-05-14 | MACK | Buy | 10,000 | 6.49 | 64,900 |
| 2014-05-16 | MACK | Buy | 5,000 | 6.50 | 32,500 |
| 2014-05-08 | MACK | Option Ex | 20,000 | 2.06 | 41,160 |
| 2014-05-08 | MACK | Buy | 5,000 | 6.48 | 32,400 |
| 2014-05-07 | MACK | Buy | 5,000 | 6.70 | 33,500 |
| 2014-05-05 | MACK | Buy | 5,000 | 6.12 | 30,600 |
| 2014-05-05 | MACK | Buy | 15,000 | 6.41 | 96,150 |
| 2013-12-16 | MACK | Buy | 12,500 | 4.71 | 58,875 |
| 2013-12-17 | MACK | Buy | 12,500 | 4.79 | 59,937 |
| 2013-12-10 | MACK | Buy | 18,000 | 4.38 | 78,840 |
| 2013-12-03 | MACK | Buy | 5,000 | 4.25 | 21,255 |
| 2013-12-02 | MACK | Buy | 70,000 | 4.17 | 291,690 |
| 2013-11-27 | MACK | Buy | 50,000 | 3.51 | 175,350 |
| 2013-11-29 | MACK | Buy | 25,000 | 3.79 | 94,825 |
| 2012-12-17 | MACK | Option Ex | 15,000 | 2.19 | 32,850 |
| 2012-12-10 | MACK | Buy | 10,000 | 6.08 | 60,800 |
| 2012-04-03 | MACK | Buy | 12,500 | 7.00 | 87,500 |
Table 2. Insider trading of Thermo Fisher Scientific Inc. (TMO) by Porter Michael E
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2012-03-09 | TMO | Sale | 3,750 | 56.42 | 211,575 |
| 2012-03-09 | TMO | Option Ex | 3,750 | 26.53 | 99,487 |
| 2012-03-08 | TMO | Sale | 3,750 | 56.05 | 210,187 |
| 2012-03-08 | TMO | Option Ex | 3,750 | 26.53 | 99,487 |
| 2011-03-18 | TMO | Option Ex | 7,500 | 28.73 | 215,475 |
| 2011-03-18 | TMO | Sale | 7,500 | 52.94 | 397,050 |
| 2010-03-19 | TMO | Option Ex | 1,600 | 18.85 | 30,160 |
| 2010-03-19 | TMO | Sale | 1,600 | 49.93 | 79,888 |
| 2010-03-18 | TMO | Option Ex | 900 | 18.85 | 16,965 |
| 2010-03-18 | TMO | Sale | 900 | 50.25 | 45,225 |
| 2010-03-17 | TMO | Option Ex | 2,500 | 18.85 | 47,125 |
| 2010-03-17 | TMO | Sale | 2,500 | 50.00 | 125,000 |
| 2010-03-16 | TMO | Sale | 2,500 | 49.51 | 123,762 |
| 2010-03-16 | TMO | Option Ex | 2,500 | 18.85 | 47,125 |
| 2009-05-28 | TMO | Option Ex | 10,000 | 18.31 | 183,100 |
| 2009-05-28 | TMO | Sale | 10,000 | 38.08 | 380,800 |
| 2009-05-12 | TMO | Option Ex | 1,000 | 18.86 | 18,860 |
| 2009-05-12 | TMO | Sale | 1,000 | 36.60 | 36,600 |
| 2008-07-15 | TMO | Option Ex | 3,944 | 18.09 | 71,346 |
| 2008-07-15 | TMO | Sale | 2,900 | 55.39 | 160,639 |
| 2008-07-15 | TMO | Sale | 1,044 | 55.13 | 57,551 |
| 2008-06-05 | TMO | Option Ex | 3,500 | 18.09 | 63,315 |
| 2008-06-05 | TMO | Sale | 3,500 | 59.05 | 206,675 |
| 2008-05-30 | TMO | Option Ex | 5,000 | 18.09 | 90,450 |
| 2008-05-30 | TMO | Sale | 5,000 | 59.02 | 295,075 |
| 2008-05-23 | TMO | Option Ex | 5,000 | 18.09 | 90,450 |
| 2008-05-23 | TMO | Sale | 5,000 | 57.91 | 289,550 |
| 2005-05-20 | TMO | Buy | 500 | 27.25 | 13,625 |
| 2005-03-18 | TMO | Buy | 797 | 26.17 | 20,857 |
Table 3. Insider trading of Ptc Inc. (PTC) by Porter Michael E
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2015-03-04 | PTC | Option Ex | 9,134 | .00 | 0 |
| 2014-11-15 | PTC | Option Ex | 3,107 | .00 | 0 |
| 2014-03-05 | PTC | Option Ex | 8,779 | .00 | 0 |
| 2014-02-12 | PTC | Option Ex | 10,000 | 11.47 | 114,750 |
| 2014-02-12 | PTC | Sale | 10,000 | 37.18 | 371,780 |
| 2013-01-28 | PMTC | Option Ex | 10,000 | 4.97 | 49,750 |
| 2013-01-28 | PMTC | Sale | 10,000 | 23.56 | 235,610 |
| 2012-05-29 | PMTC | Sale | 10,000 | 20.59 | 205,930 |
| 2012-05-29 | PMTC | Option Ex | 10,000 | 8.50 | 85,000 |
| 2012-05-23 | PMTC | Option Ex | 10,000 | 8.50 | 85,000 |
| 2012-05-23 | PMTC | Sale | 10,000 | 19.98 | 199,830 |
| 2011-09-08 | PMTC | Option Ex | 60,000 | 12.57 | 754,500 |
| 2011-09-08 | PMTC | Sale | 51,900 | 16.73 | 868,027 |
| 2007-09-19 | PMTC | Option Ex | 12,000 | 5.25 | 63,000 |
| 2006-08-08 | PMTC | Buy | 1,000 | 14.28 | 14,280 |
| 2006-08-09 | PMTC | Buy | 1,500 | 14.53 | 21,798 |
| 2006-02-06 | PMTC | Buy | 4,000 | 6.57 | 26,280 |
| 2005-08-30 | PMTC | Buy | 5,133 | 6.20 | 31,824 |
| 2005-08-12 | PMTC | Buy | 2,267 | 6.26 | 14,202 |
| 2005-05-20 | PMTC | Buy | 5,000 | 5.88 | 29,400 |
Table 4. Insider trading of Scotts Miracle-gro Co (SMG) by Porter Michael E
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2015-01-29 | SMG | Option Ex | 3,014 | .00 | 0 |
| 2014-08-15 | SMG | Buy | 810 | 56.89 | 46,080 |
| 2013-05-14 | SMG | Buy | 500 | 48.25 | 24,125 |
| 2013-05-10 | SMG | Buy | 1,000 | 47.88 | 47,880 |
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.