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ATAI Life Sciences
ATAI

Overview Fund Activity

79 hedge funds and large institutions have $29.7M invested in ATAI Life Sciences in 2025 Q1 according to their latest regulatory filings, with 9 funds opening new positions, 17 increasing their positions, 21 reducing their positions, and 16 closing their positions.

Holders
79
Holders Change
-9
Holders Change %
-10.23%
% of All Funds
1.07%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
9
Increased
17
Reduced
21
Closed
16
Calls
$1.27M
Puts
$388K
Net Calls
+$884K
Net Calls Change
+$45K

Top Buyers

1
UBS Group
1
UBS Group
Switzerland
$7.53M
2
PFCS
2
Pale Fire Capital SE
Czech Republic
$3.53M
3
D.E. Shaw & Co
3
D.E. Shaw & Co
New York
$1.35M
4
MCM
4
Moore Capital Management
New York
$1.3M
5
DKCM
5
Davidson Kempner Capital Management
New York
$1.92M

Top Sellers

1
Citadel Advisors
1
Citadel Advisors
Florida
$34K
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$0
3
WP
3
Woodline Partners
California
$384K
4
XT
4
XTX Topco
Cayman Islands
$0
5
Simplex Trading
5
Simplex Trading
Illinois
$0
Name Market Value Shares Shares
Change 		Shares
Change %
UBS Group
1
UBS Group
Switzerland
$7.53M 5,535,482 +3,596,374 +185%
Morgan Stanley
2
Morgan Stanley
New York
$4.48M 3,293,535 -37,005 -1%
PFCS
3
Pale Fire Capital SE
Czech Republic
$3.53M 2,592,584 +2,095,182 +421%
DKCM
4
Davidson Kempner Capital Management
New York
$1.92M 1,413,443 +464,070 +49%
Millennium Management
5
Millennium Management
New York
$1.54M 1,135,752 +154,195 +16%
D.E. Shaw & Co
6
D.E. Shaw & Co
New York
$1.35M 993,361 +978,327 +6,507%
MCM
7
Moore Capital Management
New York
$1.3M 952,380 +952,380 New
BU
8
Brown University
Rhode Island
$977K 718,500 – –
BC
9
BIT Capital
Germany
$597K 439,107 +439,107 New
Vanguard Group
10
Vanguard Group
Pennsylvania
$529K 389,183 -11,377 -3%
AI
11
AdvisorShares Investments
Maryland
$507K 408,762 +97,272 +31%
Two Sigma Investments
12
Two Sigma Investments
New York
$506K 371,965 -18,912 -5%
Franklin Resources
13
Franklin Resources
California
$485K 356,357 – –
BlackRock
14
BlackRock
New York
$420K 309,043 -5,425 -2%
WP
15
Woodline Partners
California
$384K 282,185 -280,187 -50%
PEAK6
16
PEAK6
Illinois
$313K 229,848 +129,848 +130%
Bank of America
17
Bank of America
North Carolina
$285K 209,899 -77,578 -27%
CCM
18
Catalio Capital Management
New York
$268K 196,858 – –
SC
19
Shay Capital
New York
$239K 175,448 +175,448 New
HCA
20
Hyperion Capital Advisors
New York
$229K 168,416 – –
Barclays
21
Barclays
United Kingdom
$224K 164,964 -5 -0%
Citigroup
22
Citigroup
New York
$182K 133,545 +130,711 +4,612%
Goldman Sachs
23
Goldman Sachs
New York
$134K 98,641 -72,951 -43%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$126K 92,619 – –
State Street
25
State Street
Massachusetts
$109K 80,194 -1,294 -2%
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