ATEC Insider Trading Activity and SEC Form 4 Filings
ATEC insider trading summary
Over the past 12 months, insiders at Alphatec Holdings, Inc. (ATEC) reported 38 sales worth $84.8M by 12 insiders and 5 open-market purchases worth $2.4M by 3 insiders on SEC Form 4. Net insider selling was $82.4M.
Latest ATEC insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Oct 30, 2026 | David M Demski | Insider | Buy | $409K (60,000 @ $6.81) |
| Sep 10, 2026 | Patrick Miles | CEO | Buy | $1.0M (115,000 @ $8.81) |
| Aug 5, 2026 | Tyson Eliot Marshall | General Counsel & Corp. Sec. | Sell | $79K (8,168 @ $9.65) |
| Jun 11, 2026 | Karen K McGinnis | Insider | Sell | $48K (6,050 @ $8.01) |
| May 11, 2026 | Keith Valentine | Insider | Buy | $245K (35,000 @ $7.00) |
| May 8, 2026 | Keith Valentine | Insider | Buy | $331K (43,847 @ $7.54) |
| May 7, 2026 | Keith Valentine | Insider | Buy | $421K (56,153 @ $7.49) |
| Mar 13, 2026 | Scott Lish | Chief Operating Officer | Sell | $3.2M (260,535 @ $12.30) |
| Mar 13, 2026 | John Todd Koning | Chief Financial Officer | Sell | $986K (79,789 @ $12.36) |
| Mar 9, 2026 | Craig E Hunsaker | EVP, People & Culture | Sell | $1.0M (82,765 @ $12.45) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.