OWENS CORNING (OC) Institutional Shareholders
OWENS CORNING (OC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $12.71B in OC holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of OC tracked by InsiderSet, reporting ownership valued at approximately $1.40B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.09B, representing an estimated loss of -22.06% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed OC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Aqr Capital Management Llc, and several other long-term asset managers with concentrated positions in OWENS CORNING (OC).
This page ranks the largest institutional OC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
673
Total Reported Value
$12.71B
Largest Holder
Blackrock, Inc.
Largest Position
$1.40B
Insider Transactions (90d)
24
Latest Filing Quarter
Q2 2026
New Institutional Positions
90
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 8,814,550 | $1,401,160,809 | $1,092,122,745 | -$309,038,064 | -22.06% | |
| Vanguard Portfolio Management Llc | 0.04% | 5,468,670 | $869,299,783 | $677,568,213 | -$191,731,570 | -22.06% | |
| Aqr Capital Management Llc | 0.20% | 3,679,060 | $577,888,337 | $455,835,534 | -$122,052,803 | -21.12% | |
| Vanguard Capital Management Llc | 0.01% | 3,630,191 | $577,055,161 | $449,780,665 | -$127,274,496 | -22.06% | |
| State Street Corp | 0.01% | 3,097,509 | $492,380,031 | $383,781,365 | -$108,598,666 | -22.06% | |
| Dimensional Fund Advisors Lp | 0.09% | 2,951,985 | $469,228,347 | $365,750,942 | -$103,477,406 | -22.05% | |
| First Trust Advisors Lp | 0.27% | 2,899,702 | $460,936,665 | $359,273,078 | -$101,663,587 | -22.06% | |
| American Century Companies Inc | 0.16% | 2,255,518 | $358,537,396 | $279,458,680 | -$79,078,716 | -22.06% | |
| Davis Selected Advisers | 1.42% | 2,081,213 | $330,714,230 | $257,862,291 | -$72,851,939 | -22.03% | |
| Geode Capital Management, Llc | 0.02% | 1,925,106 | $324,751,022 | $238,520,633 | -$86,230,389 | -26.55% | |
| Price T Rowe Associates Inc | 0.03% | 1,689,068 | $268,495,000 | $209,275,525 | -$59,219,475 | -22.06% | |
| Lsv Asset Management | 0.44% | 1,522,480 | $242,013,000 | $188,635,272 | -$53,377,728 | -22.06% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.05% | 2,219,335 | $240,176,435 | $274,975,607 | +$34,799,172 | +14.49% | |
| Nordea Investment Management Ab | 0.16% | 1,255,057 | $198,662,973 | $155,501,562 | -$43,161,411 | -21.73% | |
| Point72 Asset Management, L.P. | 0.30% | 1,217,226 | $193,490,245 | $150,814,301 | -$42,675,944 | -22.06% | |
| Norges Bank | 0.02% | 1,103,877 | $175,472,288 | $136,770,360 | -$38,701,928 | -22.06% | |
| Harris Associates L P | 0.23% | 1,095,517 | $174,143,382 | $135,734,556 | -$38,408,826 | -22.06% | |
| Jpmorgan Chase & Co | 0.01% | 1,066,825 | $167,044,363 | $132,179,618 | -$34,864,746 | -20.87% | |
| Gendell Jeffrey L | 1.45% | 1,007,315 | $160,122,793 | $124,806,329 | -$35,316,465 | -22.06% | |
| Arrowstreet Capital, Limited Partnership | 0.07% | 957,875 | $152,263,810 | $118,680,713 | -$33,583,098 | -22.06% | |
| Allspring Global Investments Holdings, Llc | 0.23% | 1,001,380 | $150,787,801 | $124,070,982 | -$26,716,819 | -17.72% | |
| Bank Of America Corp | 0.01% | 840,997 | $133,684,960 | $104,199,528 | -$29,485,432 | -22.06% | |
| Goldman Sachs Group Inc | 0.01% | 777,568 | $123,602,274 | $96,340,675 | -$27,261,599 | -22.06% | |
| Morgan Stanley | 0.01% | 723,481 | $115,004,938 | $89,639,296 | -$25,365,642 | -22.06% | |
| Northern Trust Corp | 0.01% | 715,474 | $113,731,747 | $88,647,229 | -$25,084,518 | -22.06% | |
| Charles Schwab Investment Management Inc | 0.02% | 714,742 | $113,615,388 | $88,556,534 | -$25,058,854 | -22.06% | |
| Clean Energy Transition Llp | 7.81% | 705,286 | $112,112,263 | $87,384,935 | -$24,727,328 | -22.06% | |
| Victory Capital Management Inc | 0.06% | 678,232 | $107,811,726 | $84,032,945 | -$23,778,781 | -22.06% | |
| Sound Shore Management | Harry Burn | 2.86% | 584,629 | $92,932,626 | $72,435,533 | -$20,497,093 | -22.06% |
| Fmr Llc | 0.00% | 584,425 | $92,899,952 | $72,410,258 | -$20,489,695 | -22.06% | |
| Raymond James Financial Inc | 0.03% | 579,516 | $92,119,765 | $71,802,032 | -$20,317,733 | -22.06% | |
| Bank Of New York Mellon Corp | 0.02% | 577,688 | $91,829,348 | $71,575,543 | -$20,253,805 | -22.06% | |
| Schroder Investment Management Group | 0.06% | 587,383 | $91,661,117 | $72,776,754 | -$18,884,363 | -20.60% | |
| Balyasny Asset Management L.P. | 0.15% | 531,102 | $84,423,973 | $65,803,538 | -$18,620,435 | -22.06% | |
| Two Sigma Investments, Lp | 0.06% | 529,658 | $84,194,436 | $65,624,626 | -$18,569,810 | -22.06% | |
| Deutsche Bank Ag\ | 0.02% | 518,994 | $82,499,288 | $64,303,357 | -$18,195,931 | -22.06% | |
| Banque Pictet & Cie Sa | 0.84% | 510,971 | $81,223,950 | $63,309,307 | -$17,914,643 | -22.06% | |
| Vanguard Fiduciary Trust Co | 0.02% | 509,634 | $81,011,421 | $63,143,653 | -$17,867,768 | -22.06% | |
| Lgt Group Foundation | 0.83% | 463,578 | $73,690,360 | $57,437,314 | -$16,253,046 | -22.06% | |
| Ubs Group Ag | 0.01% | 447,335 | $71,108,370 | $55,424,807 | -$15,683,564 | -22.06% | |
| Millennium Management Llc | 0.05% | 432,385 | $68,731,920 | $53,572,502 | -$15,159,419 | -22.06% | |
| Principal Financial Group Inc | 0.03% | 416,306 | $66,174,685 | $51,580,313 | -$14,594,372 | -22.05% | |
| Gotham Asset Management, Llc | 0.15% | 400,722 | $63,698,769 | $49,649,456 | -$14,049,313 | -22.06% | |
| Dekabank Deutsche Girozentrale | 0.09% | 514,195 | $54,386,000 | $63,708,761 | +$9,322,761 | +17.14% | |
| River Road Asset Management, Llc | 0.60% | 340,103 | $54,062,773 | $42,138,762 | -$11,924,011 | -22.06% | |
| Lodge Hill Capital, Llc | 9.01% | 337,870 | $53,707,815 | $41,862,093 | -$11,845,722 | -22.06% | |
| Nuveen, Llc | 0.01% | 336,187 | $53,440,245 | $41,653,569 | -$11,786,676 | -22.06% | |
| Bank Pictet & Cie (Europe) Ag | 0.97% | 312,173 | $49,623,020 | $38,678,235 | -$10,944,785 | -22.06% | |
| Alliancebernstein L.P. | 0.02% | 443,573 | $48,003,470 | $54,958,695 | +$6,955,225 | +14.49% | |
| Callodine Capital Management, Lp | 3.03% | 290,130 | $46,119,065 | $35,947,107 | -$10,171,958 | -22.06% |
Frequently asked questions about OC
Who owns the most OC stock?
The largest holders of OC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for OWENS CORNING (OC).
Is OC widely held by superinvestors?
Many widely followed stocks like OC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly OC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.