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Owens Corning

OC
Exchange
NYSE
Industry
Abrasive, Asbestos & Misc Nonmetallic Mineral Prods
SEC CIK
0001370946

In the last 90 days, Owens Corning insiders filed 0 open-market purchases and 1 sale; 697 institutions reported holding it in 13F filings for Q2 2026, worth $13.1B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

Key figures

Market capClose on Nov 10, 2026
$9.48B
Insider buysOpen market, last 90 days
0
Insider sellsLast 90 days, $129.7K in total
1
13F holdersQ2 2026, +67 vs. previous quarter
697
13F valueReported value at the end of Q2 2026
$13.1B
Superinvestors holdingAt the end of Q2 2026
1

Price chart

From SEC filings, in USD.

Revenue, FY2025
$10.1B
−7.9% year over year
Net income, FY2025
-$522.0M
−180.7% year over year
Free cash flow, FY2025
$962.0M
−22.7% year over year
Revenue, Q3 FY2026
$2.49B
−7.3% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Net loss for FY2025: $522.0M (5.2% of revenue).

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest
2.66M
Shares sold short
Change
−234.2K
−8.1% vs. previous
Days to cover
3.01
At average daily volume

Superinvestors holding OC, Q2 2026

Go to the superinvestors tab

1 superinvestor reports holding Owens Corning on Form 13F. Percentages are the stock's share of each portfolio.

Harris Associates (Oakmark)

Bill Nygren

0.2%

Owens Corning's share of the portfolio

Shares
1,095,517
Value
$174.1M

Latest insider trades

See all insider trades

Open-market purchases and sales by Owens Corning insiders from Form 4, newest first.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 1, 2026 (view filing)4:13 PM ETAug 284 daysMarcon Rachel BarthelemyPresident, DoorsSSale$.01 Par Value Common−900$144.07−$129.7K−4.0%21.4K after10b5-1
May 29, 2026 (view filing)May 281 dayMarcon Rachel BarthelemyPresident, DoorsSSale$.01 Par Value Common−700$120.71−$84.5K−4.2%15.8K after10b5-1
May 12, 2026 (view filing)May 84 daysDoerfler MariVice President and ControllerSSale$.01 Par Value Common−1.93K$120.92−$232.9K−38.4%3.09K after
Aug 14, 2025 (view filing)Aug 122 daysDoerfler MariVice President and ControllerSSale$.01 Par Value Common−441$149.00−$65.7K−7.8%5.24K after
May 20, 2025 (view filing)May 164 daysMarcon Rachel BarthelemyPresident, DoorsSSale$.01 Par Value Common−1.36K$145.41−$197.3K−10.1%12.1K after
Mar 11, 2025 (view filing)Mar 74 daysMorris W HowardDirectorSSale$.01 Par Value Common−272$144.29−$39.2K−0.6%41.7K after
Feb 25, 2025 (view filing)Feb 214 daysBall Christopher OPresident, DoorsSSale$.01 Par Value Common−2.11K$165.46−$349.6K−7.4%26.3K after
Feb 18, 2025 (view filing)Feb 144 daysMendez-Andino JoseEVP, Chief R&D OfficerSSale$.01 Par Value Common−1.82K$179.22−$326.4K−13.3%11.9K after10b5-1
Feb 12, 2025 (view filing)Feb 102 daysBeredo Gina A.EVP, GC and SecretarySSale$.01 Par Value Common−3.13K$183.49−$573.4K−12.2%22.4K after10b5-1
Feb 12, 2025 (view filing)Feb 111 dayFister Todd WEVP & Chief Financial OfficerSSale$.01 Par Value Common−9.87K$180.00−$1.78M−25.9%28.2K after10b5-1

Top 10 13F holders, Q2 2026

See all 697 holders

The largest institutional positions in Owens Corning at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding OC in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.8,814,550$1.40B0.02%−396,314−4.3%Reduced
Vanguard Portfolio Management LLC5,468,670$869.3M0.04%−39,451−0.7%Reduced
AQR Capital Management LLC3,679,060$577.9M0.20%+1,139,037+44.8%Added
Vanguard Capital Management LLC3,630,191$577.1M0.01%+12,163+0.3%Added
State Street Corp3,097,509$492.4M0.01%+33,205+1.1%Added
Dimensional Fund Advisors LP2,951,985$469.2M0.09%+187,369+6.8%Added
First Trust Advisors LP2,899,702$460.9M0.27%+720,488+33.1%Added
American Century Companies Inc2,255,518$358.5M0.16%+213,016+10.4%Added
UBS Asset Management Americas Inc2,218,358$352.6M0.06%−9770.0%Reduced
Davis Selected Advisers2,081,213$330.7M1.42%−19,722−0.9%Reduced

Holders of 5% or more of OC

See all 3 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Owens Corning.

Largest holders of OC from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A10.00%8.07M shares+0.40 ppfrom 9.60%Apr 28, 20253 filingsJun 4, 2026SEC
Vanguard Portfolio Management LLC13G6.88%5.53M sharesNewApr 29, 20261 filingApr 29, 2026SEC
Vanguard Capital Management LLC13G5.27%4.24M sharesNewApr 30, 20261 filingApr 30, 2026SEC

1 member of Congress reported 3 trades in Owens Corning since 2020. Newest filings:

  1. Tommy Tuberville

    Senate · AL · Aug 5, 2026

    Sell (full)$15K-$50K

  2. Tommy Tuberville

    Senate · AL · Aug 5, 2026

    Sell (partial)$15K-$50K

  3. Tommy Tuberville

    Senate · AL · Sep 15, 2022

    Buy$15K-$50K