Who owns AtaiBeckley Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATAI from SEC Form 13F filings across 243 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 243 institutions disclosed 134.9M shares of AtaiBeckley Inc. worth $710.6M — about 37.4% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
243
13F holders
$710.6M
value, 2026 filers
37.4%
of shares outstanding (134.9M sh)
85
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATAI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 25.6M | $134.8M | 0.0% | 7.1% | +274.2% |
| 2 | Deep Track Capital, LP | 14.4M | $76.0M | 1.1% | 4% | +20.1% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 11.7M | $61.9M | 0.0% | 3.3% | -0.1% |
| 4 | STATE STREET CORP | 8.3M | $43.7M | 0.0% | 2.3% | +624.2% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 6.9M | $36.5M | 0.0% | 1.9% | +176.2% |
| 6 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 5.6M | $29.7M | 0.0% | 1.6% | 0.0% |
| 7 | UBS Group AG | 4.4M | $23.3M | 0.0% | 1.2% | -40.4% |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 4.1M | $21.6M | 0.0% | 1.1% | new |
| 9 | MORGAN STANLEY | 3.8M | $20.3M | 0.0% | 1.1% | -0.2% |
| 10 | Candriam S.C.A. | 3.0M | $16.0M | 0.1% | 0.8% | -1.5% |
| 11 | Foresite Capital Management VI LLC | 2.8M | $14.5M | 2.3% | 0.8% | 0.0% |
| 12 | NORTHERN TRUST CORP | 2.6M | $13.6M | 0.0% | 0.7% | +381.2% |
| 13 | CITADEL ADVISORS LLC | 2.1M | $11.1M | 0.0% | 0.6% | +1134.0% |
| 14 | RTW INVESTMENTS, LP | 2.0M | $10.5M | 0.1% | 0.6% | 0.0% |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.0M | $10.4M | 0.0% | 0.5% | +66.4% |
| 16 | MILLENNIUM MANAGEMENT LLC | 1.8M | $9.3M | 0.0% | 0.5% | -59.4% |
| 17 | Eagle Health Investments LP | 1.7M | $9.0M | 1.5% | 0.5% | 0.0% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 1.6M | $8.3M | 0.0% | 0.4% | +25.4% |
| 19 | Halter Ferguson Financial Inc.NEW | 1.5M | $7.8M | 1.3% | 0.4% | new |
| 20 | FIRST TRUST ADVISORS LPNEW | 1.4M | $7.2M | 0.0% | 0.4% | new |
| 21 | PRICE T ROWE ASSOCIATES INC /MD/NEW | 1.4M | $7.1M | 0.0% | 0.4% | new |
| 22 | Nuveen, LLC | 1.3M | $6.8M | 0.0% | 0.4% | +631.3% |
| 23 | Newtyn Management, LLC | 1.2M | $6.3M | 0.8% | 0.3% | -33.3% |
| 24 | MOORE CAPITAL MANAGEMENT, LP | 952,380 | $5.0M | 0.1% | 0.3% | 0.0% |
| 25 | GOLDMAN SACHS GROUP INC | 946,100 | $5.0M | 0.0% | 0.3% | +81.6% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.