AtaiBeckley Inc. ATAI

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7.35 USD 0.00 (+0.00%)

At closeSep 10, 2026, 4:00 PM EDT

5.26 -2.09 -28.44%

After hours · Sep 10, 4:00 PM ET

7.30 Day range 7.37

3.27 52-week range 7.45

Held by insiders 2.18%

Held by institutions 52.30%

Float held by institutions 53.47%

Institutions 313

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	6.90%	25,574,573	187.97M	Jun 29, 2026
Deep Track Capital, Lp	3.89%	14,417,442	105.97M	Jun 29, 2026
Vanguard Capital Management LLC	3.17%	11,747,249	86.34M	Jun 29, 2026
State Street Corporation	2.23%	8,287,054	60.91M	Jun 29, 2026
Geode Capital Management, LLC	1.87%	6,933,309	50.96M	Jun 29, 2026
Adage Capital Partners GP L.L.C.	1.52%	5,642,758	41.47M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	2.48%	9,192,000	67.56M	Jun 29, 2026
iShares Trust-iShares Russell 2000 ETF	2.23%	8,262,163	60.73M	Jun 29, 2026
Fidelity Salem Street Trust-Fidelity Small Cap Index Fund	0.94%	3,473,435	25.53M	Jun 29, 2026
iShares Trust-iShares Russell 2000 Growth ETF	0.71%	2,615,721	19.23M	Jun 29, 2026
VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund	0.61%	2,261,718	16.62M	Jun 29, 2026
iShares Trust-iShares Biotechnology ETF	0.56%	2,073,448	15.24M	Jun 29, 2026

ATAI insiders
Insider	Relation	Latest transaction	Date	Shares held
ANGERMAYER CHRISTIAN	Director and Beneficial Owner of more than 10% of a Class of Security	Conversion of Exercise of derivative security	Apr 7, 2026	55,770,900
APEIRON INVESTMENT GROUP LTD.	Beneficial Owner of more than 10% of a Class of Security	Conversion of Exercise of derivative security	Sep 29, 2025	0
CRAIG KEVIN JAMES M.D.	Officer	Sale	Jun 24, 2026	8,437
FEILDING-MELLEN COSMO	Director	Sale	Jan 1, 2026	7,663,400
HERSHBERG ROBERT M	Director	Sale	Jul 6, 2026	100,000
JOHNSON ANNE NAGENGAST	Chief Financial Officer	Sale	Mar 20, 2025	140,045

Held by funds