Marshall Tyson Eliot (CIK 1666669) reported 21 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-09). Recent activity: Buy ATEC (15,000 shares), Buy ATEC (15,000 shares), Buy ATEC (12,500 shares), Buy ATEC (60,000 shares), Sell ATEC (23,393 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 15,000 | $29,700 |
| 2026-04-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 15,000 | $25,200 |
| 2026-04-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 12,500 | $41,750 |
| 2026-04-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 60,000 | $161,400 |
| 2026-04-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 23,393 | $258,025 |
| 2026-03-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 88,835 | $1.1M |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 205,094 | $0 |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 84,918 | $0 |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 12,840 | $0 |
| 2025-12-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 9,924 | $213,168 |
| 2025-12-09 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 12,965 | $278,359 |
| 2025-11-21 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 70,000 | $1.4M |
| 2025-08-05 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 12,878 | $154,536 |
| 2025-08-05 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 9,924 | $147,471 |
| 2025-08-05 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 8,168 | $122,193 |
| 2025-07-14 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 1,500 | $18,000 |
| 2025-04-03 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 19,848 | $0 |
| 2025-03-07 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Sell | 27,805 | $318,089 |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 105,833 | $0 |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 114,322 | $0 |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | GENERAL COUNSEL & CORP. SEC. | Buy | 12,965 | $0 |
Source: SEC Form 4 filings · as of 2026-04-09