ATAI AtaiBeckley Inc.: institutional ownership and insider trading
213 funds reported holding $708M of AtaiBeckley Inc. in their latest 13F filings; in Q2 2026 funds net bought $189M, with 79 new positions and 22 funds selling out; over the last 12 months insiders bought $0 and sold $1.66M on the open market.
Famous investors holding ATAI
- Ken Griffin (Citadel Advisors): $13.3M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $9.33M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $4.33M, 0.0% of the portfolio
- Sequoia Fund (Ruane, Cunniff & Goldfarb): $222K, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $77.3K, 0.0% of the portfolio
Largest institutional holders of ATAI
- BlackRock, Inc. (BLK) — $135M
- Deep Track Capital, LP — $76.0M
- VANGUARD CAPITAL MANAGEMENT LLC — $61.9M
- STATE STREET CORP (STT, STT-PG) — $43.7M
- GEODE CAPITAL MANAGEMENT, LLC — $36.5M
- ADAGE CAPITAL PARTNERS GP, L.L.C. — $29.7M
- UBS Group AG (UBS) — $23.3M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $21.6M
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $20.3M
- Candriam S.C.A. — $16.0M
Recent ATAI insider trades
- Jul 7, 2026: Hershberg Robert sold 100,000 shares ($496K)
- Jun 26, 2026: Kochendoerfer Gerd sold 50,000 shares ($250K)
- Jun 25, 2026: Craig Kevin James sold 42,579 shares ($192K)
- Apr 20, 2026: Craig Kevin James sold 42,579 shares ($213K)
5%+ owners
- Christian Angermayer: 15.4% (Schedule 13D/A, filed Jul 17, 2026)