OC Institutional Ownership Changes & 13F Activity
OWENS CORNING (OC) institutional ownership data tracks hedge funds, asset managers, pension funds, and institutional investors holding Amazon shares based on recent SEC 13F filings (Q1 2026). Recent filings show notable position changes from firms including Sound Shore Management, Sequoia Financial Advisors, Appaloosa Management, Renaissance Technologies LLC, and Ariel Appreciation Fund. This page analyzes institutional buying and selling activity, increased and reduced positions, new holdings, and sold-out positions to help investors understand institutional sentiment, portfolio allocation trends, and hedge fund conviction in OWENS CORNING stock.
Key Insights:
- Q1 2026 SEC 13F filings show notable institutional position changes in OC.
- Sound Shore Management, Sequoia Financial Advisors, Appaloosa Management, Renaissance Technologies LLC, and Ariel Appreciation Fund were among firms reporting significant share count changes.
- Institutional ownership trends can help investors monitor hedge fund sentiment and long-term conviction in OC stock.
Related OC Insights:
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2020 | Greenhaven Associates | Sell | -2,202,961 | 192,900 | $7,486 |
| Q3 2019 | Renaissance Technologies LLC | Sell | -296,900 | 211,700 | $13,379 |
| Q1 2019 | Renaissance Technologies LLC | Buy | 268,600 | 508,600 | $23,965 |
| Q4 2018 | Renaissance Technologies LLC | Sell | -304,500 | 240,000 | $10,555 |
| Q3 2018 | Renaissance Technologies LLC | Sell | -34,500 | 544,500 | $29,550 |
| Q3 2018 | Appaloosa Management | Sell | -335,351 | 1,073,813 | $58,276 |
| Q2 2018 | Appaloosa Management | Sell | -7,540 | 1,409,164 | $89,299 |
| Q1 2018 | Renaissance Technologies LLC | Sell | -252,900 | 579,000 | $46,552 |
| Q1 2018 | Appaloosa Management | Buy | 428,669 | 1,416,704 | $113,903 |
| Q4 2017 | First Eagle U.S. Value | Sell | -11,700 | 164,300 | $15,106 |
| Q4 2017 | Renaissance Technologies LLC | Sell | -209,700 | 831,900 | $76,485 |
| Q4 2017 | Appaloosa Management | Sell | -1,142,318 | 988,035 | $90,840 |
| Q3 2017 | First Eagle U.S. Value | Sell | -186,425 | 176,000 | $13,614 |
| Q3 2017 | Renaissance Technologies LLC | Buy | 331,000 | 1,041,600 | $80,568 |
| Q3 2017 | Appaloosa Management | Sell | -368,619 | 2,130,353 | $164,783 |
| Q2 2017 | Renaissance Technologies LLC | Sell | -459,200 | 710,600 | $47,553 |
| Q2 2017 | Appaloosa Management | Sell | -111,514 | 2,498,972 | $167,231 |
| Q1 2017 | Renaissance Technologies LLC | Buy | 488,500 | 1,169,800 | $71,791 |
| Q1 2017 | Appaloosa Management | Sell | -106,058 | 2,610,486 | $160,206 |
| Q1 2017 | Greenhaven Associates | Sell | -361,488 | 2,395,861 | $147,034 |
| Q4 2016 | Renaissance Technologies LLC | Buy | 435,500 | 681,300 | $35,128 |
| Q4 2016 | Appaloosa Management | Sell | -235,463 | 2,716,544 | $140,065 |
| Q4 2016 | Greenhaven Associates | Sell | -472,708 | 2,757,349 | $142,169 |
| Q3 2016 | Renaissance Technologies LLC | Sell | -298,500 | 245,800 | $13,123 |
| Q3 2016 | First Eagle U.S. Value | Sell | -315,590 | 362,425 | $19,350 |
| Q3 2016 | Appaloosa Management | Sell | -383,780 | 2,952,007 | $157,608 |
| Q3 2016 | Greenhaven Associates | Sell | -56,349 | 3,230,057 | $172,453 |
| Q2 2016 | Hancock Classic Value | Sell | -211,345 | 203,330 | $10,476 |
| Q2 2016 | Renaissance Technologies LLC | Buy | 165,200 | 544,300 | $28,042 |
| Q2 2016 | First Eagle U.S. Value | Buy | 678,015 | 678,015 | $34,931 |
Frequently asked questions about OC activity
Which institutional owners are buying OC?
Institutional owners buying OC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OC activity?
"Buy" means an investor increased their reported position in OC compared to the prior reporting period. This reflects growing exposure to OWENS CORNING (OC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OC increasing?
Institutional interest in OC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.