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ATAI Life Sciences
ATAI

Overview Fund Activity

93 hedge funds and large institutions have $63.9M invested in ATAI Life Sciences in 2025 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 19 increasing their positions, 22 reducing their positions, and 7 closing their positions.

Holders
93
Holders Change
+14
Holders Change %
+17.72%
% of All Funds
1.25%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
%
% of All Funds
0.01%
New
23
Increased
19
Reduced
22
Closed
7
Calls
$461K
Puts
$675K
Net Calls
-$214K
Net Calls Change
-$1.1M

Top Buyers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$11.9M
2
UBS Group
2
UBS Group
Switzerland
$16.9M
3
Citadel Advisors
3
Citadel Advisors
Florida
$2.58M
4
Marshall Wace
4
Marshall Wace
United Kingdom
$613K
5
Goldman Sachs
5
Goldman Sachs
New York
$762K

Top Sellers

1
DKCM
1
Davidson Kempner Capital Management
New York
$0
2
BC
2
BIT Capital
Germany
$50.8K
3
BlackRock
3
BlackRock
New York
$9.64K
4
D.E. Shaw & Co
4
D.E. Shaw & Co
New York
$1.52M
5
Citigroup
5
Citigroup
New York
$10.4K
Name Market Value Shares Shares
Change 		Shares
Change %
UBS Group
1
UBS Group
Switzerland
$16.9M 7,699,759 +2,164,277 +39%
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$11.9M 5,434,782 +5,434,782 New
Morgan Stanley
3
Morgan Stanley
New York
$7.65M 3,494,292 +200,757 +6%
PFCS
4
Pale Fire Capital SE
Czech Republic
$5.78M 2,640,384 +47,800 +2%
Millennium Management
5
Millennium Management
New York
$2.6M 1,188,165 +52,413 +5%
Citadel Advisors
6
Citadel Advisors
Florida
$2.58M 1,179,543 +1,154,511 +4,612%
MCM
7
Moore Capital Management
New York
$2.09M 952,380 – –
BU
8
Brown University
Rhode Island
$1.57M 718,500 – –
D.E. Shaw & Co
9
D.E. Shaw & Co
New York
$1.52M 695,031 -298,330 -30%
Two Sigma Investments
10
Two Sigma Investments
New York
$1.12M 510,061 +138,096 +37%
Vanguard Group
11
Vanguard Group
Pennsylvania
$957K 436,932 +47,749 +12%
AI
12
AdvisorShares Investments
Maryland
$854K 389,762 -19,000 -5%
Franklin Resources
13
Franklin Resources
California
$780K 356,357 – –
Goldman Sachs
14
Goldman Sachs
New York
$762K 347,868 +249,227 +253%
WP
15
Woodline Partners
California
$637K 290,943 +8,758 +3%
Marshall Wace
16
Marshall Wace
United Kingdom
$613K 279,874 +279,874 New
PEAK6
17
PEAK6
Illinois
$457K 208,548 -21,300 -9%
CCM
18
Catalio Capital Management
New York
$431K 196,858 – –
HCA
19
Hyperion Capital Advisors
New York
$369K 168,416 – –
Barclays
20
Barclays
United Kingdom
$361K 164,887 -77 -0%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$316K 144,369 +51,750 +56%
Bank of America
22
Bank of America
North Carolina
$241K 109,898 -100,001 -48%
Jane Street
23
Jane Street
New York
$211K 96,540 +62,017 +180%
VF
24
Virtu Financial
New York
$210K 95,746 +85,226 +810%
State Street
25
State Street
Massachusetts
$174K 79,546 -648 -0.8%
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