Who owns AtaiBeckley Inc. (ATAI)? Elite investor 13F holders

3 tracked elite investors reported holding AtaiBeckley Inc as of 2026-06-30, including Ruane Cunniff LP, D.E. Shaw, Ancora Advisors / Ancora Holdings. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

3 tracked investors currently reported holding · Latest report period: 2026-06-30 · Health Care · Pharmaceuticals, Biotechnology & Life Sciences

Reported holders and securities, including exits (up to 20)

Reported holders and securities, including exits (up to 20)
InvestorSecurityInstrumentReport periodFiledValueQuantityUnitsChangeSource
Ruane Cunniff LPCommon stock, par value $0.01 per shareSHARE2026-06-302026-08-14 00:00:00221930.00 USD42112.000000SharesbuyOriginal filing
D.E. ShawCommon stock, par value $0.01 per shareSHARE2026-06-302026-08-14 00:00:0077306.00 USD14669.000000SharesreduceOriginal filing
Ancora Advisors / Ancora HoldingsCommon stock, par value $0.01 per shareSHARE2026-06-302026-08-14 00:00:006814.00 USD1293.000000SharesaddOriginal filing

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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