ATI
471 hedge funds and large institutions have $11.6B invested in ATI in 2025 Q2 according to their latest regulatory filings, with 111 funds opening new positions, 124 increasing their positions, 186 reducing their positions, and 62 closing their positions.
79% more first-time investments, than exits
New positions opened: 111 | Existing positions closed: 62
66% more capital invested
Capital invested by funds: $6.97B → $11.6B (+$4.59B)
11% more funds holding
Funds holding: 426 → 471 (+45)
0.7% more ownership
Funds ownership: 94.29% → 95% (+0.7%)
10% less funds holding in top 10
Funds holding in top 10: 10 → 9 (-1)
33% less repeat investments, than reductions
Existing positions increased: 124 | Existing positions reduced: 186
55% less call options, than puts
Call options by funds: $98.1M | Put options by funds: $217M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital Research Global Investors
Los Angeles,
California
|
+$179M |
| 2 |
D.E. Shaw & Co
New York
|
+$128M |
| 3 |
BlackRock
New York
|
+$125M |
| 4 |
PCM
Palestra Capital Management
New York
|
+$72.7M |
| 5 |
Fuller & Thaler Asset Management
San Mateo,
California
|
+$62.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
-$106M |
| 2 |
Millennium Management
New York
|
-$73.7M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
-$55.7M |
| 4 |
Ameriprise
Minneapolis,
Minnesota
|
-$55.3M |
| 5 |
CCM
Channing Capital Management
Chicago,
Illinois
|
-$49.8M |
ATI Hedge Fund Activity: Q2 2025 in Review
471 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in ATI (ATI) for Q2 2025, worth a combined $11.6B — up 66% from $6.97B a quarter earlier.
Buyers outnumbered sellers: 111 funds opened new ATI positions and 62 closed out — a net gain of 49 holders — while 124 added to existing stakes and 186 trimmed.
The largest buyer was Capital Research Global Investors, adding an estimated $179M. The largest seller was Invesco, cutting an estimated $106M.
- 471 institutional investors held ATI (ATI) as of Q2 2025, up from 426 in Q1 2025.
- Funds reported $11.6B of ATI stock for Q2 2025, up 66% quarter-over-quarter.
- 111 funds opened new ATI positions in Q2 2025 and 62 closed out, a net change of +49 holders.
- The largest ATI buyer in Q2 2025 was Capital Research Global Investors, an estimated $179M added.
- The largest ATI seller in Q2 2025 was Invesco, an estimated $106M sold.
Based on aggregated 13F filings for Q2 2025.