Alphatec (ATEC) Superinvestor holders
14 of the superinvestors we track hold Alphatec (ATEC) in their latest 13F filings, $87M in total.
Summary
The largest holder is Brett Barakett (Tremblant Capital Group), with $22M, 0.6% of the portfolio.
In their latest quarter: 1 opened a new position, 8 added, 5 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Brett Barakett Tremblant Capital Group |
Added | 2,577,799 | $22M | 0.6% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | 2,386,326 | $21M | 0.0% | Q2 2026 |
| Arrowstreet Capital | Added | 1,564,766 | $14M | 0.0% | Q2 2026 |
| Jean-Marie Eveillard First Eagle Investment Management |
Added | 996,637 | $9M | 0.0% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Trimmed | 823,496 | $7M | 0.0% | Q2 2026 |
| Chuck Royce Royce Investment Partners |
Added | 358,081 | $4M | 0.0% | Q3 2026 |
| Peter Muller PDT Partners |
Trimmed | 387,592 | $3M | 0.2% | Q2 2026 |
| Jim Simons Renaissance Technologies |
Trimmed | 284,500 | $2M | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 270,709 | $2M | 0.0% | Q2 2026 |
| Louis Bacon Moore Capital Management |
New position | 188,504 | $2M | 0.0% | Q2 2026 |
| Man Group Man Group plc |
Added | 44,125 | $381,681 | 0.0% | Q2 2026 |
| Alan Howard Brevan Howard |
Trimmed | 36,601 | $316,599 | 0.0% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Added | 12,150 | $105,098 | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
Trimmed | 771 | $7,000 | 0.0% | Q3 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 14 |
| Q1 2026 | 17 |
| Q4 2025 | 18 |
| Q3 2025 | 16 |
| Q2 2025 | 13 |
| Q1 2025 | 11 |
| Q4 2024 | 14 |
| Q3 2024 | 15 |
Questions about Alphatec
Which superinvestors own Alphatec?
14 of the superinvestors we track hold Alphatec (ATEC) in their latest 13F filings, $87M in total. Brett Barakett, Cliff Asness, Arrowstreet Capital, Jean-Marie Eveillard, Two Sigma, Chuck Royce.
Who is the largest superinvestor holder of ATEC?
The largest holder is Brett Barakett (Tremblant Capital Group), with $22M, 0.6% of the portfolio.
From Alphatec's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.