AtaiBeckley Inc. (ATAI)
Who owns AtaiBeckley Inc. (ATAI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 82.7% of the shares are freely tradable; institutional investors hold 44.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Deep Track Capital, LP | 3.24 | 12,000,000 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.18 | 11,761,398 | +0.0 | 03/31/2026 |
| UBS Group AG | 2.01 | 7,426,867 | +0.0 | 03/31/2026 |
| BlackRock Inc | 1.85 | 6,835,300 | +0.0 | 03/31/2026 |
| Adage Capital Partners Gp LLC | 1.53 | 5,642,758 | +0.0 | 03/31/2026 |
| Susquehanna International Group, LLP | 1.43 | 5,286,326 | +0.0 | 03/31/2026 |
| Millennium Management LLC | 1.18 | 4,364,096 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Morn Total Stk Mkt Idx Investor | 2.48 | 9,192,000 | -1.2 | 06/30/2026 |
| iShares Russell 2000 ETF | 2.24 | 8,289,073 | +1.1 | 07/28/2026 |
| ARK Genomic Revolution | 1.16 | 4,297,820 | +4.4 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 20. Apr 2026 | Kevin James Craig | Insider | Sell | 42,579 | 5.00 | 212,895 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: August 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.