17 insiders reported 164 Form 4 transactions for Alphatec Holdings, Inc. (ATEC) over the past 18 months (most recent 2026-06-12). Recent activity: Valentine Keith (Director) Buy 32,012 shares, MCGINNIS KAREN K (Director) Buy 32,012 shares, Berkowitz Mortimer III (Director) Buy 32,012 shares, Demski David M (Director) Buy 32,012 shares, Blackford Quentin S. (Director) Buy 32,012 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-12 | Valentine Keith | Director | Buy | 32,012 | $0 |
| 2026-06-12 | MCGINNIS KAREN K | Director | Buy | 32,012 | $0 |
| 2026-06-12 | Berkowitz Mortimer III | Director | Buy | 32,012 | $0 |
| 2026-06-12 | Demski David M | Director | Buy | 32,012 | $0 |
| 2026-06-12 | Blackford Quentin S. | Director | Buy | 32,012 | $0 |
| 2026-06-12 | Pelizzon David R | Director | Buy | 32,012 | $0 |
| 2026-06-12 | MCGINNIS KAREN K | Director | Sell | 6,050 | $48,460 |
| 2026-05-11 | Valentine Keith | Director | Buy | 56,153 | $420,586 |
| 2026-05-11 | Valentine Keith | Director | Buy | 43,847 | $330,606 |
| 2026-05-11 | Valentine Keith | Director | Buy | 35,000 | $245,000 |
| 2026-04-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Buy | 12,500 | $41,750 |
| 2026-04-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Buy | 15,000 | $25,200 |
| 2026-04-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Buy | 15,000 | $29,700 |
| 2026-04-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Buy | 60,000 | $161,400 |
| 2026-04-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Sell | 23,393 | $258,025 |
| 2026-03-17 | Lish Scott | CHIEF OPERATING OFFICER | Sell | 260,535 | $3.2M |
| 2026-03-17 | Koning John Todd | CHIEF FINANCIAL OFFICER | Sell | 79,789 | $986,192 |
| 2026-03-13 | Sponsel David | EVP, SALES | Sell | 163,452 | $2.0M |
| 2026-03-10 | Hunsaker Craig E | EVP, PEOPLE & CULTURE | Sell | 33,602 | $410,616 |
| 2026-03-10 | Hunsaker Craig E | EVP, PEOPLE & CULTURE | Sell | 82,765 | $1.0M |
| 2026-03-10 | Hunsaker Craig E | EVP, PEOPLE & CULTURE | Sell | 600 | $0 |
| 2026-03-09 | Koning John Todd | CHIEF FINANCIAL OFFICER | Sell | 68,910 | $866,199 |
| 2026-03-09 | Miles Patrick | CEO | Sell | 219,749 | $2.8M |
| 2026-03-09 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Sell | 88,835 | $1.1M |
| 2026-02-27 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Buy | 205,094 | $0 |
Source: SEC Form 4 filings · as of 2026-06-12