Peter L. Chang serves as Executive at GSI GROUP INC, where they oversee executive responsibilities. Since joining the company, Peter L. Chang has executed 82 insider transactions totaling $3.1M, demonstrating a bearish approach to their equity position. Their most recent transaction on Mar 3, 2017 involved exercising options for 3,518 shares valued at $89.9K.
Peter L. Chang currently holds 16,660 shares of GSI GROUP INC (GSIG), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Peter L. Chang has been a net seller of GSIG stock. They have purchased $0 and sold $3.1M worth of shares.
Peter L. Chang's most recent insider trade was on Mar 3, 2017, when they sold 3,518 shares at $25.55 per share.
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| 1,656 |
| $25.55 |
| Discretionary |
| Feb 27, 2017 | NOVT | $38.5K | Payment | 1,568 | $24.55 | Discretionary |
| Feb 27, 2017 | NOVT | $83.1K | Option Exercise | 3,386 | $24.55 | Discretionary |
| Feb 24, 2017 | NOVT | $46.5K | Payment | 1,894 | $24.55 | Discretionary |
| Feb 24, 2017 | NOVT | $89.2K | Option Exercise | 3,635 | $24.55 | Discretionary |
| Aug 19, 2016 | NOVT | $5.1K | Sale | 300 | $17.14 | Discretionary |
| Aug 19, 2016 | NOVT | $12.0K | Sale | 700 | $17.13 | Discretionary |
| Mar 8, 2016 | GSIG | $18.3K | Payment | 1,377 | $13.31 | Discretionary |
| Mar 8, 2016 | GSIG | $57.0K | Option Exercise | 4,281 | $13.31 | Discretionary |
| Mar 3, 2016 | GSIG | $46.4K | Option Exercise | 3,517 | $13.18 | Discretionary |
| Mar 3, 2016 | GSIG | $14.6K | Payment | 1,110 | $13.18 | Discretionary |
| Feb 26, 2016 | GSIG | $42.6K | Option Exercise | 3,386 | $12.59 | Discretionary |
| Feb 26, 2016 | GSIG | $16.1K | Payment | 1,279 | $12.59 | Discretionary |
| Mar 9, 2015 | GSIG | $42.9K | Option Exercise | 3,467 | $12.37 | Discretionary |
| Mar 9, 2015 | GSIG | $13.6K | Payment | 1,096 | $12.37 | Discretionary |
| Mar 9, 2015 | GSIG | $52.9K | Option Exercise | 4,280 | $12.37 | Discretionary |
| Mar 9, 2015 | GSIG | $17.1K | Payment | 1,379 | $12.37 | Discretionary |
| Mar 3, 2015 | GSIG | $15.3K | Payment | 1,225 | $12.53 | Discretionary |
| Mar 3, 2015 | GSIG | $44.1K | Option Exercise | 3,517 | $12.53 | Discretionary |
| Aug 15, 2014 | GSIG | $16.0K | Payment | 1,302 | $12.31 | Discretionary |
| Aug 15, 2014 | GSIG | $49.2K | Option Exercise | 4,000 | $12.31 | Discretionary |
| Mar 10, 2014 | GSIG | $15.5K | Payment | 1,232 | $12.55 | Discretionary |
| Mar 10, 2014 | GSIG | $43.5K | Option Exercise | 3,467 | $12.55 | Discretionary |
| Mar 10, 2014 | GSIG | $53.7K | Option Exercise | 4,280 | $12.55 | Discretionary |
| Mar 10, 2014 | GSIG | $17.0K | Payment | 1,355 | $12.55 | Discretionary |
| Aug 15, 2013 | GSIG | $33.8K | Option Exercise | 4,000 | $8.44 | Discretionary |
| Aug 15, 2013 | GSIG | $11.0K | Payment | 1,304 | $8.44 | Discretionary |
| Mar 8, 2013 | GSIG | $0 | Option Exercise | 3,466 | $N/A | Discretionary |
| Mar 8, 2013 | GSIG | $12.9K | Payment | 1,314 | $9.78 | Discretionary |