ATEC · Insider Trading
Alphatec Holdings, Inc.
Every open-market purchase and sale reported by ATEC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-05 | Thomas Andrew Carls | EVP, Data & Imaging Solutions | A | +200,000 | — |
| 2026-09-10 | Patrick Miles | CEO | Buy | +115,000 | +$1.01M |
| 2026-08-07 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | Sell | −8,168 | −$78.82K |
| 2026-08-07 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | Sell | −8,168 | −$78.82K |
| 2026-06-12 | Karen K McGinnis | Director | MIXED | +25,962 | −$48.46K |
| 2026-06-12 | David M Demski | Director | A | +32,012 | — |
| 2026-06-12 | David R Pelizzon | Director | A | +32,012 | — |
| 2026-06-12 | Keith Valentine | Director | A | +32,012 | — |
| 2026-06-12 | Quentin S. Blackford | Director | A | +32,012 | — |
| 2026-06-12 | Mortimer Berkowitz III | Director | A | +32,012 | — |
| 2026-05-11 | Keith Valentine | Director | Buy | +135,000 | +$996.19K |
| 2026-04-09 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | MIXED | +79,107 | +$25 |
| 2026-03-17 | Scott Lish | CHIEF OPERATING OFFICER | Sell | −260,535 | −$3.20M |
| 2026-03-17 | John Todd Koning | CHIEF FINANCIAL OFFICER | Sell | −79,789 | −$986.19K |
| 2026-03-13 | David Sponsel | EVP, SALES | Sell | −163,452 | −$2.05M |
| 2026-03-10 | Craig E Hunsaker | EVP, PEOPLE & CULTURE | MIXED | −116,967 | −$1.44M |
| 2026-03-09 | John Todd Koning | CHIEF FINANCIAL OFFICER | F | −68,910 | −$866.20K |
| 2026-03-09 | Patrick Miles | CEO | F | −219,749 | −$2.76M |
| 2026-03-09 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | Sell | −88,835 | −$1.11M |
| 2026-02-27 | John Todd Koning | CHIEF FINANCIAL OFFICER | A | +335,868 | — |
| 2026-02-27 | Craig E Hunsaker | EVP, PEOPLE & CULTURE | A | +459,480 | — |
| 2026-02-27 | Scott Lish | CHIEF OPERATING OFFICER | A | +459,480 | — |
| 2026-02-27 | Patrick Miles | CEO | A | +966,293 | — |
| 2026-02-27 | David Sponsel | EVP, SALES | A | +318,884 | — |
| 2026-02-27 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | A | +302,852 | — |
| 2026-02-17 | Craig E Hunsaker | EVP, PEOPLE & CULTURE | MIXED | +210,071 | +$25 |
| 2026-02-06 | David Sponsel | EVP, SALES | Sell | −60,425 | −$833.26K |
| 2026-02-04 | Craig E Hunsaker | EVP, PEOPLE & CULTURE | Sell | −37,358 | −$549.54K |
| 2026-01-06 | Patrick Miles | CEO | Sell | −100,000 | −$2.10M |
| 2025-12-18 | David R Pelizzon | Director | Sell | −250,000 | −$4.92M |
| 2025-12-18 | Scott Lish | CHIEF OPERATING OFFICER | Sell | −19,900 | −$390.84K |
| 2025-12-12 | Craig E Hunsaker | EVP, PEOPLE & CULTURE | Sell | −32,584 | −$679.05K |
| 2025-12-12 | David Sponsel | EVP, SALES | Sell | −21,106 | −$438.79K |
| 2025-12-12 | David M Demski | Director | Sell | −30,000 | −$636.00K |
| 2025-12-10 | David R Pelizzon | Director | Sell | −250,000 | −$5.30M |
| 2025-12-10 | Squadron Capital LLC | 10%+ Owner | Sell | −250,000 | −$5.30M |
| 2025-12-10 | Squadron Capital Holdings LLC | 10%+ Owner | Sell | −250,000 | −$5.30M |
| 2025-12-10 | Patrick Miles | CEO | F | −28,680 | −$615.19K |
| 2025-12-10 | David Sponsel | EVP, SALES | Sell | −988 | −$21.19K |
| 2025-12-10 | John Todd Koning | CHIEF FINANCIAL OFFICER | F | −15,266 | −$327.46K |
| 2025-12-10 | Jennifer N. Pritzker | 10%+ Owner | Sell | −250,000 | −$5.30M |
| 2025-12-09 | Scott Lish | CHIEF OPERATING OFFICER | Sell | −10,875 | −$233.49K |
| 2025-12-09 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | Sell | −22,889 | −$491.53K |
| 2025-12-03 | Patrick Miles | CEO | Sell | −100,000 | −$2.21M |
| 2025-11-26 | Squadron Capital Holdings LLC | 10%+ Owner | Sell | −250,000 | −$5.16M |
| 2025-11-26 | Jennifer N. Pritzker | 10%+ Owner | Sell | −250,000 | −$5.16M |
| 2025-11-25 | Squadron Capital LLC | 10%+ Owner | Sell | −250,000 | −$5.16M |
| 2025-11-25 | David R Pelizzon | Director | Sell | −250,000 | −$5.16M |
| 2025-11-21 | Scott Lish | CHIEF OPERATING OFFICER | MIXED | — | −$404.25K |
| 2025-11-21 | Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | Sell | −70,000 | −$1.37M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| David R Pelizzon | Director | 10,773,884 | $122.71M |
| Squadron Capital Holdings LLC | 10%+ Owner | 10,673,879 | $121.58M |
| Squadron Capital LLC | 10%+ Owner | 10,673,879 | $121.58M |
| Patrick Miles | CEO | 5,904,451 | $67.25M |
| Ward W Woods Jr | Director | 2,210,602 | $25.18M |
| Craig E Hunsaker | EVP, PEOPLE & CULTURE | 1,725,609 | $19.65M |
| Scott Lish | CHIEF OPERATING OFFICER | 815,704 | $9.29M |
| Mortimer Berkowitz III | Director | 796,637 | $9.07M |
| Tyson Eliot Marshall | GENERAL COUNSEL & CORP. SEC. | 630,398 | $7.18M |
| John Todd Koning | CHIEF FINANCIAL OFFICER | 600,721 | $6.84M |
| Quentin S. Blackford | Director | 600,381 | $6.84M |
| David Sponsel | EVP, SALES | 504,932 | $5.75M |
| David M Demski | Director | 431,635 | $4.92M |
| Jeffrey P Rydin | Director | 385,441 | $4.39M |
| Keith Valentine | Director | 264,283 | $3.01M |
| Thomas Andrew Carls | EVP, Data & Imaging Solutions | 202,520 | $2.31M |
| Karen K McGinnis | Director | 94,671 | $1.08M |
| Jennifer N. Pritzker | 10%+ Owner | 59,000 | $672.01K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ATEC quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.