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.
Holders of 5% or more of OC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Owens Corning, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 10.00%8.07M shares | +0.40 ppfrom 9.60% | Apr 28, 20253 filings | Jun 4, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 6.88%5.53M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.27%4.24M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
20 Schedule 13D and 13G filings on Owens Corning, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jun 4, 202612:12 PM ET | BlackRock, Inc. | 13G/A | 10.00%8.07M shares | +0.40 ppfrom 9.60% | May 31, 2026 | SEC |
| Apr 30, 202612:15 PM ET | Vanguard Capital Management LLC | 13G | 5.27%4.24M shares | New | Mar 31, 2026 | SEC |
| Apr 29, 20262:38 PM ET | Vanguard Portfolio Management LLC | 13G | 6.88%5.53M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 202611:19 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −11.47 ppfrom 11.47%Below 5% | Mar 13, 2026 | SEC |
| Jan 21, 202612:30 PM ET | BlackRock, Inc. | 13G/A | 9.60%7.87M shares | −1.20 ppfrom 10.80% | Dec 31, 2025 | SEC |
| Apr 30, 202511:22 AM ET | Vanguard Group Inc | 13G/A | 11.47%9.82M shares | – | Mar 31, 2025 | SEC |
| Apr 28, 20252:02 PM ET | BlackRock, Inc. | 13G/A | 10.80%9.20M shares | – | Mar 31, 2025 | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 23, 20244:14 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 27, 20233:57 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 23, 20233:52 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| May 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Boston Partners | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 27, 20225:14 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20229:16 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Boston Partners | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20217:14 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
49 notices from officers, directors and other affiliates planning to sell Owens Corning shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Aug 28, 202610:45 AM ETAmended | Marcon Rachel BarthelemyOfficer | 900 | $129.7K | Aug 28, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 28, 20269:47 AM ET | Marcon Rachel BarthelemyOfficer | 700 | $84.5K | May 28, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 8, 20263:26 PM ET | Doerfler MariOfficer | 1.93K | $232.9K | May 8, 2026 | Fidelity Brokerage Services LLC | SEC |
| Aug 12, 20254:42 PM ET | Doerfler MariOfficer | 441 | $65.7K | Aug 12, 2025 | Fidelity Brokerage Services LLC | SEC |
| May 16, 20254:00 PM ET | Marcon Rachel BarthelemyOfficer | 1.36K | $197.3K | May 16, 2025 | Fidelity Brokerage Services LLC | SEC |
| Mar 7, 202512:27 PM ET | Morris W HowardDirector | 272 | $39.2K | Mar 7, 2025 | Fidelity Brokerage Services LLC | SEC |
| Feb 21, 202511:46 AM ET | Sandri Marcio AOfficer | 5.56K | $965.9K | Feb 21, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 14, 202510:42 AM ET | Mendez-Andino JoseOfficer | 1.82K | $326.4K | Feb 14, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 11, 202510:56 AM ET | Fister Todd WOfficer | 9.87K | $1.78M | Feb 11, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 10, 202512:03 PM ET | Beredo Gina A.Officer | 3.13K | $573.4K | Feb 10, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 6, 202510:32 AM ET | Del Monaco NicolasOfficer | 1.75K | $321.9K | Feb 6, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 6, 202510:18 AM ET | Mendez-Andino JoseOfficer | 218 | $40.1K | Feb 6, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 4, 202510:42 AM ET | Mendez-Andino JoseOfficer | 246 | $44.5K | Feb 4, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 3, 202511:48 AM ET | Mendez-Andino JoseOfficer | 318 | $57.3K | Feb 3, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Dec 13, 20244:37 PM ET | Smith GunnerOfficer | 17.4K | $3.34M | Dec 13, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 19, 202410:05 AM ET | Mendez-Andino JoseOfficer | 2.59K | $501.7K | Nov 19, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 13, 20243:06 PM ET | Morris W HowardDirector | 221 | $43.5K | Nov 13, 2024 | Fidelity Brokerage Services LLC | SEC |
| Sep 19, 202412:02 PM ET | Sandri Marcio AOfficer | 3.05K | $538.5K | Sep 19, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Sep 17, 202411:37 AM ET | Sandri Marcio AOfficer | 3.05K | $518.5K | Sep 17, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Aug 14, 20241:58 PM ET | Morris W HowardDirector | 820 | $130.3K | Aug 14, 2024 | Fidelity Brokerage Services LLC | SEC |
| Jun 27, 202411:07 AM ET | Fister Todd WOfficer | 3.00K | $521.0K | Jun 27, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Jun 13, 202410:47 AM ET | Fister Todd WOfficer | 3.00K | $542.5K | Jun 13, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| Jun 12, 20243:17 PM ET | Doerfler MariOfficer | 240 | $43.7K | Jun 12, 2024 | Fidelity Brokerage Services LLC | SEC |
| May 24, 202410:48 AM ET | Sandri Marcio AOfficer | 9.70K | $1.73M | May 24, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 21, 202410:30 AM ET | Del Monaco NicolasOfficer | 3.42K | $604.1K | May 21, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
Showing the latest 25. See the OC notices from the last 12 months