AtaiBeckley Inc
ATAI
ATAI was delisted on the 10th of September, 2026.
93 hedge funds and large institutions have $63.9M invested in AtaiBeckley Inc 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.
229% more first-time investments, than exits
New positions opened: 23 | Existing positions closed: 7
115% more capital invested
Capital invested by funds: $29.7M → $63.9M (+$34.2M)
50% more call options, than puts
Call options by funds: $1.46M | Put options by funds: $971K
18% more funds holding
Funds holding: 79 → 93 (+14)
3.52% more ownership
Funds ownership: 11.04% → 14.56% (+3.5%)
14% less repeat investments, than reductions
Existing positions increased: 19 | Existing positions reduced: 22
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Adage Capital Partners
Boston,
Massachusetts
|
+$9.74M |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$3.88M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$2.07M |
| 4 |
Marshall Wace
London,
United Kingdom
|
+$502K |
| 5 |
Goldman Sachs
New York
|
+$447K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DKCM
Davidson Kempner Capital Management
New York
|
-$1.92M |
| 2 |
BC
BIT Capital
Berlin,
Germany
|
-$746K |
| 3 |
BlackRock
New York
|
-$546K |
| 4 |
D.E. Shaw & Co
New York
|
-$535K |
| 5 |
SC
Shay Capital
New York
|
-$239K |
ATAI Hedge Fund Activity: Q2 2025 in Review
93 of the 7,613 institutional investors tracked by Wall St. Rank reported a position in AtaiBeckley Inc (ATAI) for Q2 2025, worth a combined $63.9M — up 115% from $29.7M a quarter earlier.
Buyers outnumbered sellers: 23 funds opened new ATAI positions and 7 closed out — a net gain of 16 holders — while 19 added to existing stakes and 22 trimmed.
The largest buyer was Adage Capital Partners, opening a new position worth an estimated $9.74M. The largest seller was Davidson Kempner Capital Management, exiting entirely with an estimated $1.92M sold.
- 93 institutional investors held AtaiBeckley Inc (ATAI) as of Q2 2025, up from 79 in Q1 2025.
- Funds reported $63.9M of AtaiBeckley Inc stock for Q2 2025, up 115% quarter-over-quarter.
- 23 funds opened new AtaiBeckley Inc positions in Q2 2025 and 7 closed out, a net change of +16 holders.
- The largest AtaiBeckley Inc buyer in Q2 2025 was Adage Capital Partners, an estimated $9.74M added.
- The largest AtaiBeckley Inc seller in Q2 2025 was Davidson Kempner Capital Management, an estimated $1.92M sold.
Based on aggregated 13F filings for Q2 2025.