Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionBrown Advisory Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Brown Advisory Inc closes position in OC / Owens Corning

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 0 shares of Owens Corning (US:OC) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,292 shares of Owens Corning. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OWENS CORNING COM 690742101 0 -100.00 0
2026-02-13 2025-12-31 13F OWENS CORNING COM 690742101 3,292 -9,544 -74.35 368 -79.72 0.0005
2025-11-14 2025-09-30 13F OWENS CORNING COM 690742101 12,836 989 8.35 1,816 11.42 0.0024
2025-08-13 2025-06-30 13F OWENS CORNING COM 690742101 11,847 96 0.82 1,629 -2.92 0.0021
2025-04-30 2025-03-31 13F OWENS CORNING COM 690742101 11,751 -440 -3.61 1,678 -19.17 0.0024
2025-02-14 2024-12-31 13F OWENS CORNING COM 690742101 12,191 806 7.08 2,076 3.33 0.0026
2024-11-13 2024-09-30 13F OWENS CORNING COM 690742101 11,385 -403 -3.42 2,010 -1.86 0.0025
2024-08-14 2024-06-30 13F OWENS CORNING COM 690742101 11,788 -262 -2.17 2,048 1.89 0.0027
2024-04-24 2024-03-31 13F OWENS CORNING COM 690742101 12,050 355 3.04 2,010 15.93 0.0027
2024-02-08 2023-12-31 13F OWENS CORNING COM 690742101 11,695 -43 -0.37 1,734 8.24 0.0024
2023-10-25 2023-09-30 13F OWENS CORNING COM 690742101 11,738 243 2.11 1,601 6.73 0.0026
2023-07-31 2023-06-30 13F OWENS CORNING COM 690742101 11,495 -475 -3.97 1,500 30.89 0.0023
2023-05-08 2023-03-31 13F OWENS CORNING COM 690742101 11,970 -285 -2.33 1,147 9.67 0.0019
2023-02-13 2022-12-31 13F OWENS CORNING COM 690742101 12,255 -128 -1.03 1,045 7.40 0.0019
2022-11-14 2022-09-30 13F OWENS CORNING COM 690742101 12,383 554 4.68 973 10.69 0.0019
2022-11-14 2022-06-30 13F/A-2 OWENS CORNING COM 690742101 11,829 -687 -5.49 879 -23.30 0.0017
2022-09-13 2022-06-30 13F/A-1 OWENS CORNING COM 690742101 12,211 -687 907 0.0016
2022-08-02 2022-06-30 13F OWENS CORNING COM 690742101 13,016 0 1,040 0.0007
2022-11-14 2022-03-31 13F/A-2 OWENS CORNING COM 690742101 12,516 -500 -3.84 1,146 -2.72 0.0017
2022-09-13 2022-03-31 13F/A-1 OWENS CORNING COM 690742101 12,898 -118 1,181 0.0017
2022-05-09 2022-03-31 13F OWENS CORNING COM 690742101 13,016 0 1,187 0.0016
2022-01-27 2021-12-31 13F OWENS CORNING COM 690742101 13,016 0 0.00 1,178 5.94 0.0015
2021-11-12 2021-09-30 13F OWENS CORNING COM 690742101 13,016 -160 -1.21 1,112 -13.80 0.0016
2021-07-29 2021-06-30 13F OWENS CORNING COM 690742101 13,176 0 0.00 1,290 6.26 0.0019
2021-05-14 2021-03-31 13F OWENS CORNING COM 690742101 13,176 -1,434 -9.82 1,214 9.67 0.0021
2021-02-12 2020-12-31 13F OWENS CORNING COM 690742101 14,610 0 0.00 1,107 10.15 0.0020
2020-11-16 2020-09-30 13F OWENS CORNING COM 690742101 14,610 631 4.51 1,005 28.85 0.0021
2020-08-14 2020-06-30 13F OWENS CORNING COM 690742101 13,979 389 2.86 780 47.73 0.0018
2020-05-15 2020-03-31 13F OWENS CORNING COM 690742101 13,590 -800 -5.56 528 -43.65 0.0016
2020-02-14 2019-12-31 13F OWENS CORNING COM 690742101 14,390 0 0.00 937 3.08 0.0024
2019-11-14 2019-09-30 13F OWENS CORNING COM 690742101 14,390 0 0.00 909 8.60 0.0026
2019-08-12 2019-06-30 13F OWENS CORNING COM 690742101 14,390 -31 -0.21 837 23.27 0.0024
2019-05-15 2019-03-31 13F OWENS CORNING COM 690742101 14,421 -661 -4.38 679 2.41 0.0019
2019-02-13 2018-12-31 13F OWENS CORNING COM 690742101 15,082 -2,000 -11.71 663 -28.56 0.0022
2018-11-13 2018-09-30 13F OWENS CORNING COM 690742101 17,082 0 0.00 928 -14.31 0.0026
2018-08-10 2018-06-30 13F OWENS CORNING COM 690742101 17,082 -850 -4.74 1,083 -24.90 0.0033
2018-06-28 2018-03-31 13F/A-1 OWENS CORNING COM 690742101 17,932 -8,997 -33.41 1,442 -41.74 0.0047
2018-05-14 2018-03-31 13F OWENS CORNING COM 690742101 14,742 -12,187 1,185
2018-02-12 2017-12-31 13F OWENS CORNING COM 690742101 26,929 -1,681 -5.88 2,475 11.84 0.0078
2017-11-13 2017-09-30 13F OWENS CORNING COM 690742101 28,610 -598,313 -95.44 2,213 -94.73 0.0073
2017-08-14 2017-06-30 13F OWENS CORNING COM 690742101 626,923 593,667 1,785.14 41,953 1,955.51 0.1282
2017-05-15 2017-03-31 13F OWENS CORNING COM 690742101 33,256 -7,102 -17.60 2,041 -1.87 0.0070
2017-02-13 2016-12-31 13F OWENS CORNING COM 690742101 40,358 11,771 41.18 2,080 36.30 0.0074
2016-11-14 2016-09-30 13F OWENS CORNING COM 690742101 28,587 -10,276 -26.44 1,526 -23.78 0.0052
2016-08-09 2016-06-30 13F OWENS CORNING COM 690742101 38,863 -444,501 -91.96 2,002 -91.24 0.0070
2016-05-13 2016-03-31 13F OWENS CORNING COM 690742101 483,364 -469,780 -49.29 22,854 -49.02 0.0789
2016-02-08 2015-12-31 13F OWENS CORNING COM 690742101 953,144 3,596 0.38 44,826 12.64 0.1521
2015-11-13 2015-09-30 13F OWENS CORNING COM 690742101 949,548 -458,361 -32.56 39,795 -31.48 0.1421
2015-08-11 2015-06-30 13F OWENS CORNING COM 690742101 1,407,909 58,044 4.30 58,078 -0.86 0.1891
2015-05-14 2015-03-31 13F OWENS CORNING COM 690742101 1,349,865 -228,709 -14.49 58,584 3.64 0.1865
2015-02-13 2014-12-31 13F/A-1 OWENS CORNING COM 690742101 1,578,574 43,543 2.84 56,529 15.99 0.1782
2015-02-09 2014-12-31 13F OWENS CORNING COM 690742101 1,576,263 56,214
2014-11-10 2014-09-30 13F OWENS CORNING COM 690742101 1,535,031 262,695 20.65 48,737 -0.97 0.1566
2014-08-08 2014-06-30 13F OWENS CORNING COM 690742101 1,272,336 17,834 1.42 49,214 -9.13 0.1548
2014-05-13 2014-03-31 13F OWENS CORNING COM 690742101 1,254,502 -188,821 -13.08 54,157 -7.85 0.1726
2014-02-11 2013-12-31 13F OWENS CORNING COM 690742101 1,443,323 12,644 0.88 58,772 8.16 0.1906
2013-11-08 2013-09-30 13F OWENS CORNING COM 690742101 1,430,679 -40,471 -2.75 54,337 -5.49 0.1940
2013-08-13 2013-06-30 13F OWENS CORNING COM 690742101 1,471,150 1,471,150 57,493 0.2303
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.