ATI
426 hedge funds and large institutions have $6.97B invested in ATI in 2025 Q1 according to their latest regulatory filings, with 88 funds opening new positions, 161 increasing their positions, 120 reducing their positions, and 60 closing their positions.
141% more call options, than puts
Call options by funds: $31.3M | Put options by funds: $13M
67% more funds holding in top 10
Funds holding in top 10: 6 → 10 (+4)
47% more first-time investments, than exits
New positions opened: 88 | Existing positions closed: 60
34% more repeat investments, than reductions
Existing positions increased: 161 | Existing positions reduced: 120
6% more funds holding
Funds holding: 403 → 426 (+23)
1.34% less ownership
Funds ownership: 95.64% → 94.29% (-1.3%)
7% less capital invested
Capital invested by funds: $7.51B → $6.97B (-$540M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$71.9M |
| 2 |
Capital International Investors
Los Angeles,
California
|
+$56.2M |
| 3 |
FACM
Forest Avenue Capital Management
Miami,
Florida
|
+$49M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$38.4M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
+$35.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$268M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$136M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
-$81.7M |
| 4 |
ACM
Anomaly Capital Management
New York
|
-$35M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
-$29.6M |
ATI Hedge Fund Activity: Q1 2025 in Review
426 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in ATI (ATI) for Q1 2025, worth a combined $6.97B — down 7.2% from $7.51B a quarter earlier.
Buyers outnumbered sellers: 88 funds opened new ATI positions and 60 closed out — a net gain of 28 holders — while 161 added to existing stakes and 120 trimmed.
The largest buyer was Millennium Management, adding an estimated $71.9M. The largest seller was BlackRock, cutting an estimated $268M.
- 426 institutional investors held ATI (ATI) as of Q1 2025, up from 403 in Q4 2024.
- Funds reported $6.97B of ATI stock for Q1 2025, down 7.2% quarter-over-quarter.
- 88 funds opened new ATI positions in Q1 2025 and 60 closed out, a net change of +28 holders.
- The largest ATI buyer in Q1 2025 was Millennium Management, an estimated $71.9M added.
- The largest ATI seller in Q1 2025 was BlackRock, an estimated $268M sold.
Based on aggregated 13F filings for Q1 2025.