ATEC Alphatec Holdings, Inc.: institutional ownership and insider trading
295 funds reported holding $1.24B of Alphatec Holdings, Inc. in their latest 13F filings; in Q2 2026 funds net sold $20.0M, with 36 new positions and 54 funds selling out; over the last 12 months insiders bought $2.01M and sold $94.6M on the open market.
Famous investors holding ATEC
- Two Sigma (Two Sigma Investments): $7.12M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $23.3M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $9.91M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $2.46M, 0.0% of the portfolio
Largest institutional holders of ATEC
- VANGUARD GROUP INC — $145M
- BlackRock, Inc. (BLK) — $98.0M
- UBS Group AG (UBS) — $62.5M
- BRAIDWELL LP — $56.5M
- AMERICAN CENTURY COMPANIES INC — $56.4M
- VANGUARD CAPITAL MANAGEMENT LLC — $44.3M
- BNP Paribas Asset Management Holding S.A. — $30.6M
- STATE STREET CORP (STT, STT-PG) — $30.1M
- ROYAL BANK OF CANADA (RY, RBMCF, RYLBF, RYPBF) — $30.0M
- JACOBS LEVY EQUITY MANAGEMENT, INC — $29.0M
Recent ATEC insider trades
- Sep 10, 2026: Miles Patrick bought 115,000 shares ($1.01M)
- Aug 5, 2026: Marshall Tyson Eliot sold 8,168 shares ($78.8K)
- Jun 11, 2026: Mcginnis Karen K sold 6,050 shares ($48.5K)
- May 11, 2026: Valentine Keith bought 135,000 shares ($996K)
5%+ owners
- Jennifer N. Pritzker: 8.9% (Schedule 13D/A, filed Dec 17, 2025)