AtaiBeckley Inc
ATAI
138 hedge funds and large institutions have $228M invested in AtaiBeckley Inc in 2025 Q4 according to their latest regulatory filings, with 48 funds opening new positions, 30 increasing their positions, 22 reducing their positions, and 39 closing their positions.
222% more call options, than puts
Call options by funds: $7.13M | Put options by funds: $2.21M
100% more funds holding in top 10
Funds holding in top 10: 2 → 4 (+2)
36% more repeat investments, than reductions
Existing positions increased: 30 | Existing positions reduced: 22
23% more first-time investments, than exits
New positions opened: 48 | Existing positions closed: 39
7% more funds holding
Funds holding: 129 → 138 (+9)
1% less capital invested
Capital invested by funds: $231M → $228M (-$3.29M)
5.04% less ownership
Funds ownership: 20.37% → 15.33% (-5%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DTC
Deep Track Capital
Greenwich,
Connecticut
|
+$22.1M |
| 2 |
BlackRock
New York
|
+$13.3M |
| 3 |
FCMV
Foresite Capital Management VI
Larkspur,
California
|
+$13M |
| 4 |
RI
RTW Investments
New York
|
+$9.44M |
| 5 |
Ameriprise
Minneapolis,
Minnesota
|
+$8.19M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$40.6M |
| 2 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$9.14M |
| 3 |
Millennium Management
New York
|
-$5.81M |
| 4 |
MCM
Moore Capital Management
New York
|
-$5.04M |
| 5 |
PFCS
Pale Fire Capital SE
Prague,
Czech Republic
|
-$4.88M |
ATAI Hedge Fund Activity: Q4 2025 in Review
138 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in AtaiBeckley Inc (ATAI) for Q4 2025, worth a combined $228M — down 1.4% from $231M a quarter earlier.
Buyers outnumbered sellers: 48 funds opened new ATAI positions and 39 closed out — a net gain of 9 holders — while 30 added to existing stakes and 22 trimmed.
The largest buyer was Deep Track Capital, opening a new position worth an estimated $22.1M. The largest seller was UBS Group, exiting entirely with an estimated $40.6M sold.
- 138 institutional investors held AtaiBeckley Inc (ATAI) as of Q4 2025, up from 129 in Q3 2025.
- Funds reported $228M of AtaiBeckley Inc stock for Q4 2025, down 1.4% quarter-over-quarter.
- 48 funds opened new AtaiBeckley Inc positions in Q4 2025 and 39 closed out, a net change of +9 holders.
- The largest AtaiBeckley Inc buyer in Q4 2025 was Deep Track Capital, an estimated $22.1M added.
- The largest AtaiBeckley Inc seller in Q4 2025 was UBS Group, an estimated $40.6M sold.
Based on aggregated 13F filings for Q4 2025.