DOSSIER · 13F Holders · Q4 2025Most-boughtAI cap-ex

ATAI LIFE SCIENCES N V COMM

17 institutions still hold ATAI LIFE SCIENCES N V COMM as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP n0731h103·17 13F holders·last filed Dec 31, 2025
Market cap
2.0%
vs prior quarter
13F value held
$32M
74.0% inst. owned
of float
Holders
17
-39 QoQ
filers reporting
Activity
+74 / −16
+786 added · −786 reduced
this quarter
Concentration
35.24%
Foresite Capital Management VI LLC #1
top holder share
AI Holders Summary · Q4 2025

17 institutions reported ATAI LIFE SCIENCES N V COMM in Q4 2025. Foresite Capital Management VI LLC leads at 35.2% of the visible book. -39 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Foresite Capital Management VI LLC
CIK 0002013341
$11M2.8M3.40%Q4 2025
02
CITADEL ADVISORS LLC
CIK 0001423053
$8M2.0M0.00%Q4 2025
03
HRT FINANCIAL LP
CIK 0001475597
$6M1.5M0.02%Q4 2025
04
Brown University
CIK 0001664741
$3M719K2.50%Q1 2026
05
D. E. Shaw & Co., Inc.
CIK 0001009207
$1M265K0.00%Q4 2025
06
STABLEFORD CAPITAL II LLC
CIK 0001842089
$1M286K0.38%Q1 2026
07
Burkehill Global Management, LP
CIK 0001904549
$756,650185K0.05%Q4 2025
08
TWO SIGMA ADVISERS, LP
CIK 0001478735
$720,658176K0.00%Q4 2025
09
KLP KAPITALFORVALTNING AS
CIK 0001717443
$247,09270K0.00%Q1 2026
10
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC
CIK 0001632972
$198,76352K0.00%Q1 2026
11
Audent Global Asset Management, LLC
CIK 0001834874
$68,86317K0.04%Q4 2025
12
Global Retirement Partners, LLC
CIK 0001749744
$4,4171K0.00%Q4 2025
13
RHL GROUP, LLC
CIK 0002066311
$255720.00%Q1 2026
14
Sankala Group LLC
CIK 0002113426
$177520.00%Q1 2026
15
Global Frontier Investments LLC
CIK 0001821219
$000.00%Q1 2026
16
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025
17
AlphaMark Advisors, LLC
CIK 0001348183
$02000.00%Q4 2024