David Sponsel

Companies

• Alphatec Holdings, Inc.EVP, Sales Apr 8, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• AAlphatec Holdings, Inc. ATEC504,932 shares²$5.2M at $10.39Mar 11, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 11, 2026Sold 163,452 shares at $12.52 of Alphatec Holdings, Inc.²
• Feb 25, 2026Granted 20,380 shares of Alphatec Holdings, Inc.³
• Feb 25, 2026Granted 93,410 shares of Alphatec Holdings, Inc.³
• Feb 25, 2026Granted 205,094 shares of Alphatec Holdings, Inc.³
• Feb 5, 2026Sold 60,425 shares at $13.79 of Alphatec Holdings, Inc.⁴
• Dec 10, 2025Sold 21,106 shares at $20.79 of Alphatec Holdings, Inc.⁵
• Dec 8, 2025Sold 988 shares at $21.45 of Alphatec Holdings, Inc.⁶
• Oct 24, 2025Sold 70,000 shares at $16.18 of Alphatec Holdings, Inc.⁷
• Sep 19, 2025Sold 2,555 shares at $15.34 of Alphatec Holdings, Inc.⁸
• Sep 18, 2025Sold 137,445 shares at $15.09 of Alphatec Holdings, Inc.⁸
• Aug 6, 2025Shares withheld for tax 982 shares at $15.34 of Alphatec Holdings, Inc.⁹
• Apr 1, 2025Granted 3,866 shares of Alphatec Holdings, Inc.¹⁰
• Mar 6, 2025Sold 33,732 shares at $10.83 of Alphatec Holdings, Inc.¹¹
• Feb 25, 2025Sold 19,419 shares at $10.41 of Alphatec Holdings, Inc.¹²
• Feb 24, 2025Sold 12,946 shares at $10.73 of Alphatec Holdings, Inc.¹²
• Feb 3, 2025Sold 36,256 shares at $11.42 of Alphatec Holdings, Inc.¹³
• Jan 29, 2025Granted 21,106 shares of Alphatec Holdings, Inc.¹⁴
• Jan 29, 2025Granted 114,322 shares of Alphatec Holdings, Inc.¹⁴
• Jan 29, 2025Granted 133,591 shares of Alphatec Holdings, Inc.¹⁴
• Jan 13, 2025Sold 58,283 shares at $10.71 of Alphatec Holdings, Inc.¹⁵
• Jan 10, 2025Sold 238 shares at $10.00 of Alphatec Holdings, Inc.¹⁵
• Dec 11, 2024Sold 62,018 shares at $9.69 of Alphatec Holdings, Inc.¹⁶
• Feb 27, 2024Sold 32,365 shares at $15.19 of Alphatec Holdings, Inc.¹⁷
• Feb 21, 2024Sold 17,820 shares at $15.34 of Alphatec Holdings, Inc.¹⁸
• Feb 21, 2024Granted 35,063 shares of Alphatec Holdings, Inc.¹⁸