John Todd Koning serves as Executive at Alphatec Holdings, Inc., where they oversee executive responsibilities. Since joining the company, John Todd Koning has executed 20 insider transactions totaling $2.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 8, 2025 involved selling 15,266 shares valued at $327.5K.
John Todd Koning currently holds 445,955 shares of Alphatec Holdings, Inc. (ATEC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John Todd Koning has been a net seller of ATEC stock. They have purchased $55.9K and sold $2.9M worth of shares.
John Todd Koning's most recent insider trade was on Dec 8, 2025, when they sold 15,266 shares at $21.45 per share.
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| $15.34 |
| Discretionary |
| Apr 24, 2024 | ATEC | $480.8K | Sale | 37,500 | $12.82 | Planned |
| Mar 1, 2024 | ATEC | $1.6M | Sale | 121,601 | $13.30 | Planned |
| Feb 21, 2024 | ATEC | $0 | Award | 31,746 | $N/A | Discretionary |
| Feb 1, 2024 | ATEC | $407.9K | Payment | 24,453 | $16.68 | Discretionary |
| Feb 1, 2024 | ATEC | $0 | Award | 129,612 | $N/A | Discretionary |
| Apr 20, 2023 | ATEC | $270.9K | Sale | 16,500 | $16.42 | Planned |
| Feb 27, 2023 | ATEC | $332.1K | Sale | 22,500 | $14.76 | Discretionary |
| Feb 22, 2023 | ATEC | $185.6K | Sale | 13,068 | $14.20 | Discretionary |
| Feb 1, 2023 | ATEC | $0 | Award | 90,242 | $N/A | Discretionary |
| Feb 1, 2023 | ATEC | $0 | Award | 64,806 | $N/A | Discretionary |
| Feb 1, 2023 | ATEC | $0 | Award | 32,403 | $N/A | Discretionary |
| Apr 28, 2022 | ATEC | $185.7K | Payment | 16,092 | $11.54 | Discretionary |
| Mar 18, 2022 | ATEC | $115.8K | Payment | 10,582 | $10.94 | Discretionary |
| Feb 24, 2022 | ATEC | $0 | Award | 60,161 | $N/A | Discretionary |
| Feb 24, 2022 | ATEC | $0 | Award | 50,000 | $N/A | Discretionary |
| Dec 16, 2021 | ATEC | $55.9K | Purchase | 5,000 | $11.17 | Discretionary |
| Apr 19, 2021 | ATEC | $0 | Award | 150,000 | $N/A | Discretionary |
| Apr 19, 2021 | ATEC | $0 | Award | 40,000 | $N/A | Discretionary |