Sponsel David - Insider Non-Derivative Transactions at Alphatec Holdings, Inc. (ATEC) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 10, 2025, Sponsel David's relationship to Alphatec Holdings, Inc. (ATEC) is Officer (EVP, SALES), and currently has 439,767 shares of Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other ATEC insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Sponsel David - Insider Non-Derivative Transactions of ATEC Common Stock
Sponsel David - Insider Non-Derivative Transactions at ATEC
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 11, 2025 | Sell -- (Common Stock) | 21106 | 20.79 | 439767 |
| Dec 9, 2025 | Sell -- (Common Stock) | 988 | 21.45 | 460873 |
| Oct 25, 2025 | Sell -- (Common Stock) | 70000 | 16.18 | 461861 |
| Sep 20, 2025 | Sell -- (Common Stock) | 2555 | 15.34 | 531861 |
| Sep 19, 2025 | Sell -- (Common Stock) | 137445 | 15.09 | 534416 |
| Aug 7, 2025 | F -- (Common Stock) | 982 | 15.34 | 671861 |
| Apr 2, 2025 | Acquisition -- (Common Stock) | 3866 | 0 | 672843 |
| Mar 7, 2025 | Sell -- (Common Stock) | 33732 | 10.83 | 668977 |
| Feb 26, 2025 | Sell -- (Common Stock) | 19419 | 10.41 | 702709 |
| Feb 25, 2025 | Sell -- (Common Stock) | 12946 | 10.73 | 722128 |
| Feb 4, 2025 | Sell -- (Common Stock) | 36256 | 11.42 | 735074 |
| Jan 30, 2025 | Acquisition -- (Common Stock) | 133591 | 0 | 635902 |
| Jan 30, 2025 | Acquisition -- (Common Stock) | 114322 | 0 | 750224 |
| Jan 30, 2025 | Acquisition -- (Common Stock) | 21106 | 0 | 771330 |
| Jan 14, 2025 | Sell -- (Common Stock) | 58283 | 10.71 | 502311 |
| Jan 11, 2025 | Sell -- (Common Stock) | 238 | 10 | 560594 |
| Dec 12, 2024 | Sell -- (Common Stock) | 62018 | 9.69 | 560832 |
| Feb 28, 2024 | Sell -- (Common Stock) | 32365 | 15.19 | 622296 |
| Feb 22, 2024 | Sell -- (Common Stock) | 17820 | 15.34 | 654661 |
| Feb 22, 2024 | Acquisition -- (Common Stock) | 35063 | 0 | 672481 |
| Feb 15, 2024 | Sell -- (Common Stock) | 2500 | 16.16 | 637418 |
| Feb 3, 2024 | Sell -- (Common Stock) | 36620 | 16.47 | 639918 |
| Feb 2, 2024 | Acquisition -- (Common Stock) | 121258 | 0 | 676538 |
| Jan 17, 2024 | Sell -- (Common Stock) | 2500 | 15 | 555280 |
| Dec 22, 2023 | Sell -- (Common Stock) | 2500 | 15 | 557780 |
| Jun 16, 2023 | Sell -- (Common Stock) | 55577 | 16.17 | 559840 |
| May 16, 2023 | F -- (Common Stock) | 68174 | 15.59 | 615417 |
| Apr 27, 2023 | F -- (Common Stock) | 35590 | 16.15 | 683591 |
| Mar 7, 2023 | Sell -- (Common Stock) | 16823 | 15.82 | 719181 |
| Feb 2, 2023 | Acquisition -- (Common Stock) | 98078 | 0 | 645061 |
| Feb 2, 2023 | Acquisition -- (Common Stock) | 60629 | 0 | 705690 |
| Feb 2, 2023 | Acquisition -- (Common Stock) | 30314 | 0 | 736004 |
| Jan 10, 2023 | Sell -- (Common Stock) | 10000 | 11.99 | 546983 |
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