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:

Related OC Insights:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Sound Shore ManagementBuy592,330592,330$64,101,953
Q1 2026Sequoia Financial AdvisorsBuy1032,338$253,037
Q4 2025Renaissance Technologies LLCSell-103,10072,100$8,068,711
Q4 2025Appaloosa ManagementBuy788,500950,000$106,314,500
Q3 2025Sequoia Financial AdvisorsBuy3862,235$316,217
Q3 2025Appaloosa ManagementBuy136,500161,500$22,845,790
Q3 2025Renaissance Technologies LLCBuy172,400175,200$24,783,792
Q2 2025Sequoia Financial AdvisorsBuy261,849$254,239
Q2 2025Renaissance Technologies LLCSell-52,4002,800$385,056
Q2 2025Ariel Appreciation FundBuy27,871140,449$19,314,546
Q1 2025Sequoia Financial AdvisorsBuy1271,823$260,310
Q1 2025Ariel Appreciation FundBuy112,578112,578$16,078,390
Q4 2024Sequoia Financial AdvisorsBuy1331,696$288,801
Q3 2024Sequoia Financial AdvisorsBuy521,563$275,922
Q2 2024Sequoia Financial AdvisorsBuy1741,511$262,573
Q1 2024Renaissance Technologies LLCSell-44,80055,200$9,207
Q1 2024Sequoia Financial AdvisorsBuy1,3371,337$222,979
Q4 2023Renaissance Technologies LLCSell-84,900100,000$14,823
Q4 2023Appaloosa ManagementSell-1,048,81325,000$3,705,750
Q4 2022Renaissance Technologies LLCSell-152,600184,900$15,772
Q3 2022Renaissance Technologies LLCSell-31,759337,500$26,531
Q2 2022Renaissance Technologies LLCBuy286,459369,259$27,440
Q1 2022Renaissance Technologies LLCSell-293,10082,800$7,576
Q4 2021Renaissance Technologies LLCSell-167,900375,900$34,019
Q3 2021Renaissance Technologies LLCBuy277,400543,800$46,495
Q2 2021Renaissance Technologies LLCBuy54,700266,400$26,081
Q1 2021Greenhaven AssociatesSell-191,570243,926$22,463
Q4 2020Greenhaven AssociatesSell-22,030435,496$32,993
Q3 2020Greenhaven AssociatesSell-376,790457,526$31,482
Q2 2020Greenhaven AssociatesBuy641,416834,316$46,521

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.