Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionSwedbank AB
Latest Disclosed Ownership293,976 shares
Latest Disclosed Value $ 31,814,083
Swedbank AB reports 0.28% increase in ownership of OC / Owens Corning

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 293,976 shares of Owens Corning (US:OC) valued at $31,814,083 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 293,168 shares of Owens Corning. This represents a change in shares of 0.28% during the quarter. The current value of the position is $35,041,939 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)
2026-04-29 2026-03-31 13F OWENS CORNING COM 690742101 293,976 808 0.28 31,814 -3.03 0.0188
2026-02-09 2025-12-31 13F/A-1 OWENS CORNING COM 690742101 293,168 -15,823 -5.12 32,808 -24.94 0.0178
2026-02-03 2025-12-31 13F OWENS CORNING COM 690742101 293,168 -15,823 32,808 0.0178
2025-10-15 2025-09-30 13F OWENS CORNING COM 690742101 308,991 -8,058 -2.54 43,710 0.25 0.0443
2025-07-10 2025-06-30 13F OWENS CORNING COM 690742101 317,049 2,308 0.73 43,601 -3.01 0.0490
2025-04-14 2025-03-31 13F OWENS CORNING COM 690742101 314,741 -4,100 -1.29 44,951 -17.22 0.0598
2025-01-22 2024-12-31 13F OWENS CORNING COM 690742101 318,841 -14,605 -4.38 54,305 -7.74 0.0668
2024-10-11 2024-09-30 13F OWENS CORNING COM 690742101 333,446 -18,177 -5.17 58,860 -3.64 0.0752
2024-07-11 2024-06-30 13F OWENS CORNING COM 690742101 351,623 -10,631 -2.93 61,084 1.09 0.0817
2024-05-15 2024-03-31 13F/A-1 OWENS CORNING COM 690742101 362,254 -421 -0.12 60,424 12.40 0.5276
2024-12-06 2023-12-31 13F OWENS CORNING COM 690742101 362,675 -5,267 -1.43 53,759 7.11 0.0866
2024-12-06 2023-09-30 13F OWENS CORNING COM 690742101 367,942 -44,895 -10.87 50,191 -6.84 0.0869
2024-12-06 2023-06-30 13F OWENS CORNING COM 690742101 412,837 -27,100 -6.16 53,875 27.83 0.0913
2024-12-06 2023-03-31 13F OWENS CORNING COM 690742101 439,937 12,537 2.93 42,146 15.60 0.0831
2024-12-06 2022-12-31 13F OWENS CORNING COM 690742101 427,400 -1,117 -0.26 36,457 8.23 0.0802
2024-12-06 2022-09-30 13F OWENS CORNING COM 690742101 428,517 15,000 3.63 33,686 9.62 0.0800
2024-12-06 2022-06-30 13F OWENS CORNING COM 690742101 413,517 27,777 7.20 30,728 -12.94 0.0694
2024-12-06 2022-03-31 13F OWENS CORNING COM 690742101 385,740 3,606 0.94 35,295 2.47 0.0654
2024-12-06 2021-12-31 13F OWENS CORNING COM 690742101 382,134 225,075 143.31 34,446 156.52 0.0576
2024-12-06 2021-09-30 13F OWENS CORNING COM 690742101 157,059 24,772 18.73 13,429 3.69 0.0251
2024-12-06 2021-06-30 13F OWENS CORNING COM 690742101 132,287 2,382 1.83 12,951 8.26 0.0243
2024-12-06 2021-03-31 13F OWENS CORNING COM 690742101 129,905 129,905 11,963 0.0249
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.