Company · CIK 0001350653 · SIC 3841 — Surgical & Medical Instruments & Apparatus · Nasdaq
Alphatec Holdings, Inc. · ATEC
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 PForm 4 → | Sep 10, 8:58 pm EDT | Patrick MilesCEO, Director | 115,000 | $8.81 | $1,013,150 | 5,893,551 | +1.99% | |
| Aug 5, 2026 SForm 4 → | Aug 7, 8:25 pm EDT | Tyson Eliot MarshallGENERAL COUNSEL & CORP. SEC. | 8,168 | $9.65 | $78,821 | 630,398 | −1.28% | 10b5-1 |
| Jun 11, 2026 SForm 4 → | Jun 12, 5:54 pm EDT | Karen K McGinnisDirector | 6,050 | $8.01 | $48,461 | 94,671 | −6.01% | 10b5-1 |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:54 pm EDT | Karen K McGinnisDirector | 32,012 | — | — | 100,721 | — | 10b5-1 |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:34 pm EDT | Quentin S. BlackfordDirector | 32,012 | — | — | 600,381 | — | |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:30 pm EDT | Keith ValentineDirector | 32,012 | — | — | 264,283 | — | |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:30 pm EDT | David R PelizzonDirector | 32,012 | — | — | 378,839 | — | |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:30 pm EDT | David M DemskiDirector | 32,012 | — | — | 431,635 | — | |
| Jun 10, 2026 AForm 4 → | Jun 12, 5:30 pm EDT | Mortimer Berkowitz IIIDirector | 32,012 | — | — | 650,062 | — |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.