Alphatec Holdings, Inc (ATEC) insider trading
Every open-market stock purchase and sale by Alphatec Holdings, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Patrick Miles (CEO) bought $1M in the last 90 days.
- Tyson Eliot Marshall (General Counsel) sold $78.8K in the last 90 days.
Last 12 months: insiders bought $2M (2 buys) and sold $97.2M (38 sales). Last close $10.58 on Sep 11, 2026.
Recent ATEC insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 10, 2026 | Patrick Miles (CEO) | Bought | $1M |
| Aug 5, 2026 | Tyson Eliot Marshall (General Counsel) | Sold | $78.8K |
| Jun 11, 2026 | Karen K McGinnis (Insider) | Sold | $48.5K |
| Jun 10, 2026 | Karen K McGinnis (Insider) | Bought (not open market) | — |
| Jun 10, 2026 | Mortimer Berkowitz III (Insider) | Bought (not open market) | — |
| Jun 10, 2026 | David M Demski (Insider) | Bought (not open market) | — |
| Jun 10, 2026 | David R Pelizzon (Insider) | Bought (not open market) | — |
| Jun 10, 2026 | Keith Valentine (Insider) | Bought (not open market) | — |
| Jun 10, 2026 | Quentin S. Blackford (Insider) | Bought (not open market) | — |
| May 11, 2026 | Keith Valentine (Insider) | Bought | $245K |
| May 8, 2026 | Keith Valentine (Insider) | Bought | $331K |
| May 7, 2026 | Keith Valentine (Insider) | Bought | $421K |
| Apr 7, 2026 | Tyson Eliot Marshall (General Counsel) | Sold (not open market) | $258K |
| Apr 7, 2026 | Tyson Eliot Marshall (General Counsel) | Bought (not open market) | — |
| Apr 7, 2026 | Tyson Eliot Marshall (General Counsel) | Bought (not open market) | — |
| Apr 7, 2026 | Tyson Eliot Marshall (General Counsel) | Bought (not open market) | — |
| Mar 13, 2026 | Scott Lish (COO) | Sold | $3.2M |
| Mar 13, 2026 | John Todd Koning (CFO) | Sold | $986K |
| Mar 11, 2026 | David Sponsel (VP) | Sold | $2M |
| Mar 9, 2026 | Craig E Hunsaker (VP) | Sold | $1M |
| Mar 9, 2026 | Craig E Hunsaker (VP) | Sold (not open market) | — |
| Mar 6, 2026 | Craig E Hunsaker (VP) | Sold | $411K |
| Mar 5, 2026 | Patrick Miles (CEO) | Sold (not open market) | $2.8M |
| Mar 5, 2026 | Tyson Eliot Marshall (General Counsel) | Sold | $1.1M |
| Mar 5, 2026 | John Todd Koning (CFO) | Sold (not open market) | $866K |
Who's trading ATEC
- Patrick Miles, CEO: bought $1M (1 buy), sold $7.6M (4 sales), last Sep 10, 2026
- Tyson Eliot Marshall, General Counsel: sold $3M (5 sales), last Aug 5, 2026
- Karen K McGinnis, Insider: sold $48.5K (1 sale), last Jun 11, 2026
- David M Demski, Insider: sold $636K (1 sale), last Jun 10, 2026
- Keith Valentine, Insider: bought $996K (3 buys), last Jun 10, 2026
- Mortimer Berkowitz III, Insider: other filings, last Jun 10, 2026
- Quentin S. Blackford, Insider: other filings, last Jun 10, 2026
- David R Pelizzon, Insider: sold $20.6M (5 sales), last Jun 10, 2026
- John Todd Koning, CFO: sold $986K (1 sale), last Mar 13, 2026
- Scott Lish, COO: sold $4.3M (4 sales), last Mar 13, 2026
- David Sponsel, VP: sold $4.5M (5 sales), last Mar 11, 2026
- Craig E Hunsaker, VP: sold $4.7M (5 sales), last Mar 9, 2026
- Squadron Capital LLC, Insider: sold $15.7M (4 sales), last Dec 9, 2025
- Jennifer N. Pritzker, Insider: sold $15.7M (4 sales), last Dec 9, 2025
- Squadron Capital Holdings LLC, Insider: sold $15.7M (4 sales), last Dec 9, 2025
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