OC Owens Corning Inc
Owens Corning Inc (OC) Institutional Ownership
What the institutions did with OC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 14.8M | 15.0% |
| BlackRock, Inc. | 8.8M | 9.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.5M | 5.6% |
| AQR CAPITAL MANAGEMENT LLC | 3.7M | 3.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.6M | 3.7% |
| STATE STREET CORP | 3.1M | 3.2% |
| DIMENSIONAL FUND ADVISORS LP | 3.0M | 3.0% |
| FIRST TRUST ADVISORS LP | 2.9M | 3.0% |
| AMERICAN CENTURY COMPANIES INC | 2.3M | 2.3% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 2.2M | 2.3% |
| Davis Selected Advisers | 2.1M | 2.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9M | 2.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.7M | 1.7% |
| LSV ASSET MANAGEMENT | 1.5M | 1.6% |
| Nykredit A/S | 1.4M | 1.5% |
| NORDEA INVESTMENT MANAGEMENT AB | 1.3M | 1.3% |
| Point72 Asset Management, L.P. | 1.2M | 1.2% |
| NORGES BANK | 1.1M | 1.1% |
| HARRIS ASSOCIATES L P | 1.1M | 1.1% |
| JPMORGAN CHASE & CO | 1.1M | 1.1% |
| GENDELL JEFFREY L | 1.0M | 1.0% |
| Allspring Global Investments Holdings, LLC | 1.0M | 1.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 957.9K | 1.0% |
| BANK OF AMERICA CORP /DE/ | 841.0K | 0.9% |
| GOLDMAN SACHS GROUP INC | 777.6K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 95.1K | 14.8M | +14.7M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.5M | 3.7M | +1.1M |
| Point72 Asset Management, L.P. | Increased | 335.2K | 1.2M | +882.0K |
| FIRST TRUST ADVISORS LP | Increased | 2.2M | 2.9M | +720.5K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 960.4K | 432.4K | -528.0K |
| D. E. Shaw & Co., Inc. | Sold Out | 499.2K | 0 | -499.2K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 972.5K | 529.7K | -442.9K |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | Sold Out | 423.8K | 0 | -423.8K |
| BlackRock, Inc. | Reduced | 9.2M | 8.8M | -396.3K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 1.3M | 957.9K | -320.2K |
| SG Americas Securities, LLC | Reduced | 356.9K | 37.4K | -319.6K |
| DEPRINCE RACE & ZOLLO INC | New | 0 | 285.8K | +285.8K |
| DEUTSCHE BANK AG\ | Reduced | 763.5K | 519.0K | -244.6K |
| Apollo Management Holdings, L.P. | Sold Out | 240.6K | 0 | -240.6K |
| MARSHALL WACE, LLP | Increased | 9.5K | 249.1K | +239.6K |
| AMERICAN CENTURY COMPANIES INC | Increased | 2.0M | 2.3M | +213.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.8M | 3.0M | +187.4K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 186.0K | +186.0K |
| HARRIS ASSOCIATES L P | Increased | 915.4K | 1.1M | +180.1K |
| GOLDENTREE ASSET MANAGEMENT LP | Sold Out | 176.2K | 0 | -176.2K |
| JPMORGAN CHASE & CO | Reduced | 1.2M | 1.1M | -173.4K |
| Allspring Global Investments Holdings, LLC | Reduced | 1.2M | 1.0M | -168.8K |
| FMR LLC | Increased | 417.6K | 584.4K | +166.8K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.5M | 1.7M | +165.2K |
| Lombard Odier Asset Management (Europe) Ltd | New | 0 | 143.9K | +143.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.