Dirk Kuyper serves as Executive at Alphatec Holdings, Inc., where they oversee executive responsibilities. Since joining the company, Dirk Kuyper has executed 58 insider transactions totaling $2.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Aug 2, 2019 involved selling 2,549 shares valued at $232.4K.
Dirk Kuyper currently holds 5,000 shares of Alphatec Holdings, Inc. (ATEC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Dirk Kuyper has been a net seller of ATEC stock. They have purchased $306.0K and sold $2.3M worth of shares.
Dirk Kuyper's most recent insider trade was on Aug 2, 2019, when they sold 2,549 shares at $91.17 per share.
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| $69.03 |
| Discretionary |
| Aug 2, 2019 | CNMD | $491.6K | Sale | 5,396 | $91.10 | Discretionary |
| Aug 2, 2019 | CNMD | $221.6K | Option Exercise | 5,396 | $41.06 | Discretionary |
| Aug 2, 2019 | CNMD | $190.4K | Option Exercise | 3,669 | $51.90 | Discretionary |
| Aug 2, 2019 | CNMD | $334.0K | Sale | 3,669 | $91.04 | Discretionary |
| Jun 14, 2019 | CNMD | $744.5K | Sale | 8,970 | $83.00 | Discretionary |
| May 31, 2019 | CNMD | $0 | Option Exercise | 1,629 | $N/A | Discretionary |
| Apr 8, 2019 | CNMD | $39.7K | Payment | 482 | $82.38 | Discretionary |
| Apr 8, 2019 | CNMD | $55.8K | Payment | 677 | $82.38 | Discretionary |
| Apr 8, 2019 | CNMD | $55.7K | Option Exercise | 1,000 | $55.70 | Discretionary |
| Apr 8, 2019 | CNMD | $166.8K | Sale | 2,000 | $83.39 | Discretionary |
| Apr 8, 2019 | CNMD | $39.6K | Option Exercise | 1,000 | $39.64 | Discretionary |
| Apr 8, 2019 | CNMD | $33.4K | Payment | 406 | $82.38 | Discretionary |
| Apr 8, 2019 | CNMD | $33.4K | Option Exercise | 1,000 | $33.43 | Discretionary |
| Jun 1, 2018 | CNMD | $0 | Option Exercise | 2,167 | $N/A | Discretionary |
| Jun 13, 2017 | CNMD | $52.2K | Sale | 1,000 | $52.24 | Discretionary |
| Jun 1, 2017 | CNMD | $0 | Option Exercise | 2,739 | $N/A | Discretionary |
| Jun 1, 2016 | CNMD | $0 | Option Exercise | 3,000 | $N/A | Discretionary |
| Jun 1, 2015 | CNMD | $0 | Option Exercise | 3,000 | $N/A | Discretionary |
| Dec 1, 2014 | CNMD | $8.6K | Sale | 200 | $42.86 | Discretionary |
| Dec 1, 2014 | CNMD | $21.4K | Sale | 500 | $42.84 | Discretionary |
| Dec 1, 2014 | CNMD | $12.9K | Sale | 300 | $42.85 | Discretionary |
| Jun 1, 2014 | CNMD | $0 | Option Exercise | 3,000 | $N/A | Discretionary |
| Aug 15, 2013 | CNMD | $31.6K | Purchase | 1,000 | $31.63 | Discretionary |
| Aug 31, 2011 | ATEC | $61.2K | Purchase | 22,272 | $2.75 | Discretionary |
| Aug 30, 2011 | ATEC | $79.7K | Purchase | 29,728 | $2.68 | Discretionary |
| Jul 5, 2011 | ATEC | $0 | Payment | 15,818 | $N/A | Discretionary |
| Apr 4, 2011 | ATEC | $0 | Payment | 15,817 | $N/A | Discretionary |
| Jan 3, 2011 | ATEC | $0 | Payment | 17,856 | $N/A | Discretionary |