13F Insight
DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
ATAI

ATAIBECKLEY INC

173 institutions still hold ATAIBECKLEY INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 04650F101·173 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.1%
vs prior quarter
13F value held
$288M
52.0% inst. owned
of float
Holders
173
-79 QoQ
filers reporting
Activity
+55 / −81
+739 added · −656 reduced
this quarter
Concentration
14.73%
Deep Track Capital, LP #1
top holder share
AI Holders Summary · Q1 2026

173 institutions reported ATAI in Q1 2026. Deep Track Capital, LP leads at 14.7% of the visible book. -79 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Deep Track Capital, LP
CIK 0001856083
$42M12.0M0.69%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$42M11.8M0.00%Q1 202603
UBS Group AG
CIK 0001610520
$26M7.4M0.00%Q1 202604
BlackRock, Inc.
CIK 0002012383
$24M6.8M0.00%Q1 202605
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$21M6.0M0.00%Q1 202606
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$20M5.6M0.03%Q1 202607
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$15M4.4M0.01%Q1 202608
MORGAN STANLEY
CIK 0000895421
$14M3.9M0.00%Q1 202609
MARSHALL WACE, LLP
CIK 0001318757
$11M2.7M0.01%Q4 202510
Candriam S.C.A.
CIK 0001537014
$11M3.1M0.06%Q1 202611
Qube Research & Technologies Ltd
CIK 0001729829
$10M2.9M0.01%Q1 202612
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$9M2.5M0.00%Q1 202613
RTW INVESTMENTS, LP
CIK 0001493215
$7M2.0M0.07%Q1 202614
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$7M2.0M0.01%Q1 202615
Newtyn Management, LLC
CIK 0001569241
$6M1.8M0.67%Q1 202616
Eagle Health Investments LP
CIK 0001842545
$6M1.7M1.06%Q1 202617
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$4M1.3M0.00%Q1 202618
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$4M1.2M0.00%Q1 202619
STATE STREET CORP
CIK 0000093751
$4M1.1M0.00%Q1 202620
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
$3M952K0.07%Q1 2026
Page 1 of 9
153 more holders available. Log in →