Alphatec (ATEC)
Builds spine-focused surgical implants, imaging, and procedural software for spine disorder treatment.
$10.14
vs last close−0.19 (−1.84%)
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13F · 13D/G · Form 4
| Institutions | 72.93% | 112.65M shares | |
|---|---|---|---|
| 281 holders · as of Jun 30, 2026 | |||
| Insiders | 15.23% | 23.53M shares | |
| 14 holders · as of Sep 10, 2026 | |||
| Strategic holders | 6.89% | 10.65M shares | |
| 1 holder · as of Dec 10, 2025 | |||
| Other | 4.95% | 7.63M shares | |
| remainder | |||
154.45M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
281 holders · 112.65M shares · 43 new positions · 150 increased · 82 reduced · 58 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 11.33M | 7.33% | +1.24M | Aug 7, 2026 |
| Braidwell LP | 6.53M | 4.23% | +4.36M | Aug 14, 2026 |
| American Century Companies Inc | 6.52M | 4.22% | +96.9K | Aug 12, 2026 |
| Vanguard Capital Management LLC | 5.12M | 3.32% | +208.9K | Aug 13, 2026 |
| BNP Paribas Asset Management Holding S.A. | 3.54M | 2.29% | −79.8K | Aug 13, 2026 |
| State Street Corp | 3.48M | 2.25% | +450.2K | Aug 7, 2026 |
| Jacobs Levy Equity Management, Inc | 3.35M | 2.17% | +3.35Mnew | Aug 14, 2026 |
| Geode Capital Management, LLC | 3.19M | 2.06% | +282.5K | Aug 12, 2026 |
13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 10, 2026 | Patrick Milesdirector, officer: CEO | Purchase | 115,000 | $8.81 | 5,893,551 |
| Aug 5, 2026 | Tyson Eliot Marshallofficer: GENERAL COUNSEL & CORP. SEC. | Sale | 8,168 | $9.65 | 630,398 |
| Jun 11, 2026 | Karen K. Mcginnisdirector | Sale | 6,050 | $8.01 | 94,671 |
| May 7, 2026 | Keith Valentinedirector | Purchase | 56,153 | $7.49 | 153,424 |
| May 8, 2026 | Keith Valentinedirector | Purchase | 43,847 | $7.54 | 197,271 |
| May 11, 2026 | Keith Valentinedirector | Purchase | 35,000 | $7.00 | 232,271 |
| Mar 13, 2026 | Scott Lishofficer: CHIEF OPERATING OFFICER | Sale | 260,535 | $12.30 | 815,704 |
| Mar 13, 2026 | John Todd Koningofficer: CHIEF FINANCIAL OFFICER | Sale | 79,789 | $12.36 | 600,721 |
| Mar 11, 2026 | David Sponselofficer: EVP, SALES | Sale | 163,452 | $12.52 | 504,932 |
| Mar 9, 2026 | Craig E. Hunsakerofficer: EVP, PEOPLE & CULTURE | Sale | 82,765 | $12.45 | 1,726,209 |
House and Senate disclosures
Not reported.