Owens Corning
713 hedge funds and large institutions have $10.8B invested in Owens Corning in 2025 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 260 increasing their positions, 244 reducing their positions, and 75 closing their positions.
50% more funds holding in top 10
Funds holding in top 10: 2 → 3 (+1)
32% more first-time investments, than exits
New positions opened: 99 | Existing positions closed: 75
18% more call options, than puts
Call options by funds: $36.3M | Put options by funds: $30.8M
2% more funds holding
Funds holding: 699 → 713 (+14)
7% more repeat investments, than reductions
Existing positions increased: 260 | Existing positions reduced: 244
1% more capital invested
Capital invested by funds: $10.6B → $10.8B (+$137M)
0.2% more ownership
Funds ownership: 90.94% → 91.14% (+0.2%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CET
Clean Energy Transition
London,
United Kingdom
|
+$78M |
| 2 |
Select Equity Group
New York
|
+$69.3M |
| 3 |
JP Morgan Chase
New York
|
+$66.7M |
| 4 |
UBS AM
Chicago,
Illinois
|
+$66.3M |
| 5 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
+$57.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Nordea Investment Management
Stockholm,
Sweden
|
-$219M |
| 2 |
Millennium Management
New York
|
-$107M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$105M |
| 4 |
Amundi
Paris,
France
|
-$72M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$54.8M |
OC Hedge Fund Activity: Q3 2025 in Review
713 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Owens Corning (OC) for Q3 2025, worth a combined $10.8B — up 1.3% from $10.6B a quarter earlier.
Buyers outnumbered sellers: 99 funds opened new OC positions and 75 closed out — a net gain of 24 holders — while 260 added to existing stakes and 244 trimmed.
The largest buyer was Clean Energy Transition, opening a new position worth an estimated $78M. The largest seller was Nordea Investment Management, cutting an estimated $219M.
- 713 institutional investors held Owens Corning (OC) as of Q3 2025, up from 699 in Q2 2025.
- Funds reported $10.8B of Owens Corning stock for Q3 2025, up 1.3% quarter-over-quarter.
- 99 funds opened new Owens Corning positions in Q3 2025 and 75 closed out, a net change of +24 holders.
- The largest Owens Corning buyer in Q3 2025 was Clean Energy Transition, an estimated $78M added.
- The largest Owens Corning seller in Q3 2025 was Nordea Investment Management, an estimated $219M sold.
Based on aggregated 13F filings for Q3 2025.