OWENS CORNING (OC) Stock Institutional Trading Activity
OWENS CORNING (OC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Appaloosa Management, Renaissance Technologies LLC, Sequoia Financial Advisors, Ariel Appreciation Fund, and Greenhaven Associates. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| 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 |
| Q2 2016 | Appaloosa Management | Sell | -9,819 | 3,335,787 | $171,860 |
| Q2 2016 | Greenhaven Associates | Sell | -115,830 | 3,286,406 | $169,316 |
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.