Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership208,320 shares
Latest Disclosed Value $ 22,544,498
Quantinno Capital Management LP reports 9.95% increase in ownership of OC / Owens Corning

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 208,320 shares of Owens Corning (US:OC) valued at $22,544,390 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 189,461 shares of Owens Corning. This represents a change in shares of 9.95% during the quarter. The current value of the position is $24,831,744 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.

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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 208,320 18,859 9.95 22,544 6.33 0.0376
2026-02-17 2025-12-31 13F OWENS CORNING COM 690742101 189,461 -135,639 -41.72 21,203 -53.90 0.0426
2025-11-14 2025-09-30 13F OWENS CORNING COM 690742101 325,100 205,274 171.31 45,989 179.09 0.1255
2025-08-14 2025-06-30 13F OWENS CORNING COM 690742101 119,826 51,098 74.35 16,478 67.89 0.0712
2025-05-12 2025-03-31 13F OWENS CORNING COM 690742101 68,728 11,843 20.82 9,816 1.31 0.0639
2025-02-14 2024-12-31 13F OWENS CORNING COM 690742101 56,885 12,571 28.37 9,689 23.86 0.0953
2024-11-14 2024-09-30 13F OWENS CORNING COM 690742101 44,314 -4,717 -9.62 7,822 -8.16 0.1017
2024-08-14 2024-06-30 13F OWENS CORNING COM 690742101 49,031 9,885 25.25 8,518 30.43 0.1532
2024-05-14 2024-03-31 13F OWENS CORNING COM 690742101 39,146 4,305 12.36 6,530 26.43 0.1419
2024-02-14 2023-12-31 13F OWENS CORNING COM 690742101 34,841 -160 -0.46 5,165 8.17 0.1808
2023-11-14 2023-09-30 13F OWENS CORNING COM 690742101 35,001 989 2.91 4,775 7.57 0.2174
2023-08-04 2023-06-30 13F OWENS CORNING COM 690742101 34,012 -1,097 -3.12 4,439 32.00 0.2535
2023-05-03 2023-03-31 13F OWENS CORNING COM 690742101 35,109 -5,657 -13.88 3,363 -3.28 0.2224
2023-02-13 2022-12-31 13F OWENS CORNING COM 690742101 40,766 10,309 33.85 3,477 45.24 0.2594
2022-11-08 2022-09-30 13F OWENS CORNING COM 690742101 30,457 13,429 78.86 2,394 89.25 0.3083
2022-08-15 2022-06-30 13F OWENS CORNING COM 690742101 17,028 3,716 27.91 1,265 3.86 0.1825
2022-05-12 2022-03-31 13F OWENS CORNING COM 690742101 13,312 8,663 186.34 1,218 189.31 0.1857
2022-02-14 2021-12-31 13F OWENS CORNING COM 690742101 4,649 4,649 421 0.0762
2020-02-14 2019-12-31 13F OWENS CORNING COM 690742101 0 -5,796 -100.00 0 -100.00
2019-11-14 2019-09-30 13F OWENS CORNING COM 690742101 5,796 5,796 366 0.2465
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.