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AtaiBeckley Inc
ATAI

79 hedge funds and large institutions have $29.7M invested in AtaiBeckley Inc 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.

New
Increased
Maintained
Reduced
Closed

228% more call options, than puts

Call options by funds: $1.27M | Put options by funds: $388K

54% more capital invested

Capital invested by funds: $19.3M → $29.7M (+$10.4M)

2.38% more ownership

Funds ownership: 8.66% → 11.04% (+2.4%)

10% less funds holding

Funds holding: 88 → 79 (-9)

19% less repeat investments, than reductions

Existing positions increased: 17 | Existing positions reduced: 21

44% less first-time investments, than exits

New positions opened: 9 | Existing positions closed: 16

Holders
79
Holders Change
-9
Holders Change %
-10.23%
% of All Funds
1.06%
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
UBS Group
Switzerland
+$6.05M
2
PFCS
Pale Fire Capital SE
Czech Republic
+$3.52M
3
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$1.65M
4
MCM
Moore Capital Management
New York
+$1.6M
5
DKCM
Davidson Kempner Capital Management
New York
+$781K

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
-$659K
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$517K
3
WP
Woodline Partners
California
-$471K
4
Simplex Trading
Simplex Trading
Illinois
-$205K
5
XT
XTX Topco
Cayman Islands
-$187K
Name Holding Trade Value Shares
Change 		Change in
Stake
UBS Group
1
UBS Group
Switzerland
$7.53M +$6.05M +3,596,374 +185%
Morgan Stanley
2
Morgan Stanley
New York
$4.48M -$62.3K -37,005 -1%
PFCS
3
Pale Fire Capital SE
Czech Republic
$3.53M +$3.52M +2,095,182 +421%
DKCM
4
Davidson Kempner Capital Management
New York
$1.92M +$781K +464,070 +49%
Millennium Management
5
Millennium Management
New York
$1.54M +$259K +154,195 +16%
D.E. Shaw & Co
6
D.E. Shaw & Co
New York
$1.35M +$1.65M +978,327 +6,507%
MCM
7
Moore Capital Management
New York
$1.3M +$1.6M +952,380 New
BU
8
Brown University
Rhode Island
$977K – – –
BC
9
BIT Capital
Germany
$597K +$739K +439,107 New
Vanguard Group
10
Vanguard Group
Pennsylvania
$529K -$19.1K -11,377 -3%
AI
11
AdvisorShares Investments
Maryland
$507K +$164K +97,272 +31%
Two Sigma Investments
12
Two Sigma Investments
New York
$506K -$31.8K -18,912 -5%
Franklin Resources
13
Franklin Resources
California
$485K – – –
BlackRock
14
BlackRock
New York
$420K -$9.13K -5,425 -2%
WP
15
Woodline Partners
California
$384K -$471K -280,187 -50%
PEAK6
16
PEAK6
Illinois
$313K +$218K +129,848 +130%
Bank of America
17
Bank of America
North Carolina
$285K -$131K -77,578 -27%
CCM
18
Catalio Capital Management
New York
$268K – – –
SC
19
Shay Capital
New York
$239K +$295K +175,448 New
HCA
20
Hyperion Capital Advisors
New York
$229K – – –
Barclays
21
Barclays
United Kingdom
$224K -$8 -5 -0%
Citigroup
22
Citigroup
New York
$182K +$220K +130,711 +4,612%
Goldman Sachs
23
Goldman Sachs
New York
$134K -$123K -72,951 -43%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$126K – – –
State Street
25
State Street
Massachusetts
$109K -$2.18K -1,294 -2%
1
2 3 4

ATAI Hedge Fund Activity: Q1 2025 in Review

79 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in AtaiBeckley Inc (ATAI) for Q1 2025, worth a combined $29.7M — up 54% from $19.3M a quarter earlier.

Sellers outnumbered buyers: 16 funds closed out of ATAI and 9 opened new positions — a net loss of 7 holders — while 21 trimmed existing stakes and 17 added.

The largest buyer was UBS Group, adding an estimated $6.05M. The largest seller was Citadel Advisors, cutting an estimated $659K.

  • 79 institutional investors held AtaiBeckley Inc (ATAI) as of Q1 2025, down from 88 in Q4 2024.
  • Funds reported $29.7M of AtaiBeckley Inc stock for Q1 2025, up 54% quarter-over-quarter.
  • 9 funds opened new AtaiBeckley Inc positions in Q1 2025 and 16 closed out, a net change of -7 holders.
  • The largest AtaiBeckley Inc buyer in Q1 2025 was UBS Group, an estimated $6.05M added.
  • The largest AtaiBeckley Inc seller in Q1 2025 was Citadel Advisors, an estimated $659K sold.

Based on aggregated 13F filings for Q1 2025.