DOSSIER · 13F Holders · Q4 2025

ATAI LIFE SCIENCES NV

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

CUSIP N0731H103·14 13F holders·last filed Dec 31, 2025
Market cap
13F value held
$31M
visible holders
Holders
14
filers reporting
Concentration
36.63%
Foresite Capital Management VI LLC #1
top holder share
AI Holders Summary · Q4 2025

14 institutions reported ATAI LIFE SCIENCES NV in Q4 2025. Foresite Capital Management VI LLC leads at 36.6% of the visible book.

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
Burkehill Global Management, LP
CIK 0001904549
$757K185K0.05%Q4 2025
07
TWO SIGMA ADVISERS, LP
CIK 0001478735
$721K176K0.00%Q4 2025
08
KLP KAPITALFORVALTNING AS
CIK 0001717443
$247K70K0.00%Q1 2026
09
Audent Global Asset Management, LLC
CIK 0001834874
$69K17K0.04%Q4 2025
10
Global Retirement Partners, LLC
CIK 0001749744
$4K1K0.00%Q4 2025
11
RHL GROUP, LLC
CIK 0002066311
$255720.00%Q1 2026
12
Sankala Group LLC
CIK 0002113426
$177520.00%Q1 2026
13
Global Frontier Investments LLC
CIK 0001821219
$000.00%Q1 2026
14
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025