DOSSIER · 13F Holders · Q4 2025

ATAI LIFE SCIENCES NV

9 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 N0731H103·9 13F holders·last filed Dec 31, 2025
Market cap
13F value held
$23M
visible holders
Holders
9
filers reporting
Concentration
49.23%
Foresite Capital Management VI LLC #1
top holder share
AI Holders Summary · Q4 2025

9 institutions reported ATAI LIFE SCIENCES NV in Q4 2025. Foresite Capital Management VI LLC leads at 49.2% 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
HRT FINANCIAL LP
CIK 0001475597
$6M1.5M0.02%Q4 2025
03
Brown University
CIK 0001664741
$4M719K3.39%Q2 2026
04
D. E. Shaw & Co., Inc.
CIK 0001009207
$1M265K0.00%Q4 2025
05
TWO SIGMA ADVISERS, LP
CIK 0001478735
$721K176K0.00%Q4 2025
06
Sankala Group LLC
CIK 0002113426
$379520.00%Q2 2026
07
RHL GROUP, LLC
CIK 0002066311
$360720.00%Q2 2026
08
Global Frontier Investments LLC
CIK 0001821219
$000.00%Q1 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025