Ownership Summary
AtaiBeckley Inc. (NASDAQ:ATAI) has 7 institutional investors with active 13F positions as of March 2026.
- Collectively, these holders controlled 0.3% of AtaiBeckley's outstanding shares in March 2026, down from 22.3% in December 2025.
- They increased total shares held in AtaiBeckley by 4.37% from last quarter, and the number of investors in ATAI decreased 91.25% annually.
- Of these 7 holders, 1 added to their stakes in AtaiBeckley, 1 trimmed positions, and 5 made no changes.
- Institutional investors collectively held 1.13Mn shares in AtaiBeckley as of March 2026, up by 47.17K shares quarter on quarter, and down 22.25Mn shares year over year.
- As of March 31, 2026, Brown University held the largest stake in AtaiBeckley with 718.5K shares, accounting for 0.2% of total shares outstanding.
- Top purchasers of ATAI stock for the quarter ending March 2026 included WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (52.44K).
- Leading sellers of AtaiBeckley shares for the quarter ending March 2026 were STABLEFORD CAPITAL II LLC (5.28K).
- Per Business Quant, the top 7 investors in ATAI for the quarter ending March 2026 include Brown University (718.5K), STABLEFORD CAPITAL II LLC (286.28K), KLP KAPITALFORVALTNING AS (69.8K), WEALTH ENHANCEMENT ADVISORY SERVICES, LLC (52.44K), RHL GROUP, LLC (72), Sankala Group LLC (52), Global Frontier Investments LLC (0).