Who owns AtaiBeckley Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Apeiron Investment Group Ltd.: 15.1% · 55,770,948 shares — Apeiron Presight Capital Fund II, L.P.: 0.5% · 1,799,302 shares — Presight Capital Management I, L.L.C.: 0.5% · 1,799,302 shares
Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of AtaiBeckley Inc. they hold. Together these 286 managers report 41.52% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. | $135M | 25,574,573 | 0.00% | 6.90% | June 30, 2026 |
| Deep Track Capital, LP | $76M | 14,417,442 | 1.11% | 3.89% | June 30, 2026 |
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 75 funds hold 7.70% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | $48.4M | 0.00% | 2.48% | June 30, 2026 |
| ARK Genomic Revolution ETF | $18.2M | 1.48% | 1.18% | April 30, 2026 |
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