Owens Corning (OC) ownership: Top institutional holder: VANGUARD GROUP INC ($1.09B). Insider activity: Net Seller (0 buys, 20 sells). 3 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 9765729.00 | $1.09B | 2025-12-31 |
| BlackRock, Inc. | 9210864.00 | $996.80M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5508121.00 | $596.09M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3618028.00 | $391.54M | 2026-03-31 |
| STATE STREET CORP | 3064304.00 | $334.00M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 2764616.00 | $299.17M | 2026-03-31 |
| AQR CAPITAL MANAGEMENT LLC | 2540023.00 | $271.38M | 2026-03-31 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 2219335.00 | $240.18M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.