Insider Stock Trading History of Grierson Donald K


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 Grierson Donald K since year 2005. The trader's CIK number is 1191246. At the time of this reporting, Grierson Donald K is the $RPTTTL of Parametric Technology Corp . (stock ticker symbol PMTC). See this page for all insider trading activities at Parametric Technology Corp .


Stock purchases, sales, and option exercises reported by insider Grierson Donald K since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-08-03 PTC Parametric Technology Corp Sale 5,000 53.77 268,850
2017-04-21 PTC Parametric Technology Corp Sale 5,000 52.45 262,250
2017-03-01 PTC Parametric Technology Corp Option Ex 7,471 .00 0
2017-02-07 PTC Parametric Technology Corp Sale 10,000 53.78 537,810
2016-08-03 PTC Parametric Technology Corp Sale 5,000 39.41 197,060
2015-11-02 PTC Parametric Technology Corp Sale 5,000 35.94 179,695
2015-08-03 PTC Parametric Technology Corp Sale 5,000 36.40 182,020
2015-05-07 PTC Parametric Technology Corp Sale 5,000 38.09 190,430
2015-03-04 PTC Parametric Technology Corp Option Ex 7,535 .00 0
2014-03-07 PTC Parametric Technology Corp Sale 10,000 39.24 392,380
2014-03-05 PTC Parametric Technology Corp Option Ex 12,249 .00 0
2013-02-01 PMTC Parametric Technology Corp Sale 10,103 23.54 237,784
2012-12-04 PMTC Parametric Technology Corp Sale 10,000 20.10 201,030
2012-08-15 PMTC Parametric Technology Corp Option Ex 10,000 11.47 114,750
2012-08-15 PMTC Parametric Technology Corp Sale 10,000 21.67 216,720
2012-01-30 PMTC Parametric Technology Corp Option Ex 15,000 8.50 127,500
2012-01-30 PMTC Parametric Technology Corp Sale 15,000 25.10 376,515
2011-09-08 PMTC Parametric Technology Corp Sale 20,000 16.73 334,560
2011-09-07 PMTC Parametric Technology Corp Sale 10,000 17.07 170,680
2011-09-08 PMTC Parametric Technology Corp Option Ex 20,000 12.57 251,500
2011-09-07 PMTC Parametric Technology Corp Option Ex 10,000 12.57 125,750
2011-05-10 PMTC Parametric Technology Corp Option Ex 10,000 12.57 125,750
2011-05-10 PMTC Parametric Technology Corp Sale 10,000 23.12 231,200
2010-03-12 PMTC Parametric Technology Corp Sale 3,000 17.98 53,949
2007-05-17 PMTC Parametric Technology Corp Option Ex 2,500 4.97 12,437
2006-11-02 PMTC Parametric Technology Corp Option Ex 12,500 6.74 84,212
2006-11-02 PMTC Parametric Technology Corp Sale 12,500 18.51 231,375

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 Grierson Donald K ($RPTTTL of Parametric Technology Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.