ATEC
Alphatec Holdings, Inc. · Healthcare · Medical - Devices
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 194.85K | $2.01M | n/a | n/a |
| Q2 2026 | 99 | -8 | 76.22M | $659.91M | +3 | −10 |
| Q1 2026 | 109 | +7 | 80.20M | $874.01M | +9 | −3 |
| Q4 2025 | 102 | 0 | 84.66M | $1.78B | +2 | −1 |
| Q3 2025 | 18 | +2 | 33.33M | $484.67M | +2 | n/a |
| Q2 2025 | 13 | -1 | 26.04M | $289.00M | n/a | −1 |
| Q1 2025 | 11 | +1 | 10.43M | $105.73M | +1 | n/a |
| Q4 2024 | 10 | 0 | 10.18M | $93.47M | n/a | n/a |
| Q3 2024 | 9 | 0 | 9.49M | $52.77M | n/a | n/a |
| Q2 2024 | 9 | n/a | 10.94M | $114.34M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | 125.29K | -61.1% | $1.29M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 2 | Wealth Enhancement Advisory… | 69.56K | +31.7% | $719,905 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 282 holders, 112.73M shares, $1.22B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Officer, Director · CEO · 115.00K sh @ 8.81 · $1.01M
Open-market sales (S)
No open-market insider sales in our coverage window.
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology