AtaiBeckley Inc
ATAI
129 hedge funds and large institutions have $231M invested in AtaiBeckley Inc in 2025 Q3 according to their latest regulatory filings, with 50 funds opening new positions, 33 increasing their positions, 14 reducing their positions, and 14 closing their positions.
262% more capital invested
Capital invested by funds: $63.9M → $231M (+$167M)
257% more first-time investments, than exits
New positions opened: 50 | Existing positions closed: 14
147% more call options, than puts
Call options by funds: $12.5M | Put options by funds: $5.08M
136% more repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 14
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
39% more funds holding
Funds holding: 93 → 129 (+36)
5.82% more ownership
Funds ownership: 14.56% → 20.37% (+5.8%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ABG
Ally Bridge Group
New York
|
+$9.29M |
| 2 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
+$8.2M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$7.88M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$5.67M |
| 5 |
Morgan Stanley
New York
|
+$5.37M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PFCS
Pale Fire Capital SE
Prague,
Czech Republic
|
-$6.33M |
| 2 |
PEAK6
Chicago,
Illinois
|
-$847K |
| 3 |
Franklin Resources
San Mateo,
California
|
-$780K |
| 4 |
WP
Woodline Partners
San Francisco,
California
|
-$637K |
| 5 |
Two Sigma Investments
New York
|
-$594K |
ATAI Hedge Fund Activity: Q3 2025 in Review
129 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in AtaiBeckley Inc (ATAI) for Q3 2025, worth a combined $231M — up 262% from $63.9M a quarter earlier.
Buyers outnumbered sellers: 50 funds opened new ATAI positions and 14 closed out — a net gain of 36 holders — while 33 added to existing stakes and 14 trimmed.
The largest buyer was Ally Bridge Group, opening a new position worth an estimated $9.29M. The largest seller was Pale Fire Capital SE, cutting an estimated $6.33M.
- 129 institutional investors held AtaiBeckley Inc (ATAI) as of Q3 2025, up from 93 in Q2 2025.
- Funds reported $231M of AtaiBeckley Inc stock for Q3 2025, up 262% quarter-over-quarter.
- 50 funds opened new AtaiBeckley Inc positions in Q3 2025 and 14 closed out, a net change of +36 holders.
- The largest AtaiBeckley Inc buyer in Q3 2025 was Ally Bridge Group, an estimated $9.29M added.
- The largest AtaiBeckley Inc seller in Q3 2025 was Pale Fire Capital SE, an estimated $6.33M sold.
Based on aggregated 13F filings for Q3 2025.