GRIERSON DONALD K
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to GRIERSON DONALD K. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| PTC | Option Exercise | 2,779 | — | — | Feb 12, 2020 | |
| PTC | Sale | 900 | $86.09 | $77,481 | Feb 4, 2020 | |
| PTC | Sale | 100 | $67.54 | $6,754 | Aug 1, 2019 | |
| PTC | Option Exercise | 3,113 | — | — | Mar 6, 2019 | |
| PTC | Sale | 784 | $93.71 | $73,469 | Mar 1, 2019 | |
| PTC | Sale | 5,000 | $93.02 | $465,100 | Aug 1, 2018 | |
| PTC | Sale | 5,000 | $84.51 | $422,550 | Apr 20, 2018 | |
| PTC | Option Exercise | 4,484 | — | — | Mar 8, 2018 | |
| PTC | Sale | 5,000 | $53.77 | $268,850 | Aug 3, 2017 | |
| PTC | Sale | 600 | $52.74 | $31,644 | Apr 21, 2017 | |
| PTC | Option Exercise | 7,471 | — | — | Mar 1, 2017 | |
| PTC | Sale | 10,000 | $53.78 | $537,800 | Feb 7, 2017 | |
| PTC | Sale | 5,000 | $39.41 | $197,050 | Aug 3, 2016 | |
| PTC | Option Exercise | 7,136 | — | — | Mar 2, 2016 | |
| PTC | Sale | 5,000 | $35.94 | $179,700 | Nov 2, 2015 | |
| PTC | Sale | 5,000 | $36.40 | $182,000 | Aug 3, 2015 | |
| PTC | Sale | 5,000 | $38.09 | $190,450 | May 7, 2015 | |
| PTC | Option Exercise | 7,535 | — | — | Mar 4, 2015 | |
| PTC | Sale | 10,000 | $39.24 | $392,400 | Mar 7, 2014 | |
| PTC | Option Exercise | 12,249 | — | — | Mar 5, 2014 | |
| PTC | Sale | 10,103 | $23.54 | $237,825 | Feb 1, 2013 | |
| PTC | Sale | 10,000 | $20.10 | $201,000 | Dec 4, 2012 | |
| PTC | Option Exercise | 10,000 | $11.48 | $114,800 | Aug 15, 2012 | |
| PTC | Award / Grant | 2,075 | — | — | Jul 31, 2012 | |
| PTC | Award / Grant | 9,014 | — | — | Mar 7, 2012 | |
| PTC | Sale | 15,000 | $25.10 | $376,500 | Jan 30, 2012 | |
| PTC | Sale | 10,000 | $17.07 | $170,700 | Sep 7, 2011 | |
| PTC | Option Exercise | 10,000 | $12.58 | $125,800 | May 10, 2011 | |
| PTC | Award / Grant | 10,103 | — | — | Mar 9, 2011 | |
| PTC | Sale | 3,000 | $17.98 | $53,940 | Mar 12, 2010 | |
| PTC | Award / Grant | 12,912 | — | — | Mar 3, 2010 | |
| PTC | Award / Grant | 15,464 | — | — | May 13, 2009 | |
| PTC | Award / Grant | 3,843 | $11.15 | $42,849 | May 8, 2009 | |
| PTC | Award / Grant | 11,213 | $15.06 | $168,868 | Mar 5, 2008 | |
| PTC | Option Exercise | 2,500 | $4.98 | $12,450 | May 17, 2007 | |
| PTC | Award / Grant | 9,888 | — | — | Mar 7, 2007 | |
| PTC | Option Exercise | 5,000 | $8.50 | $42,500 | Nov 2, 2006 | |
| PTC | Award / Grant | 12,000 | — | — | Mar 1, 2006 |