Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionSmithfield Trust Co
Latest Disclosed Ownership235 shares
Latest Disclosed Value $ 25
Smithfield Trust Co ownership in OC / Owens Corning

On May 8, 2026 - Smithfield Trust Co filed a 13F-HR form disclosing ownership of 235 shares of Owens Corning (US:OC) valued at $25,432 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 235 shares of Owens Corning. The current value of the position is $28,238 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)
2026-05-08 2026-03-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0011
2026-02-09 2025-12-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0012
2025-11-07 2025-09-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0015
2025-08-08 2025-06-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0016
2025-05-09 2025-03-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0017
2025-02-06 2024-12-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0020
2024-11-12 2024-09-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0020
2024-07-31 2024-06-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0022
2024-05-07 2024-03-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0021
2024-02-07 2023-12-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0020
2023-11-06 2023-09-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0020
2023-08-08 2023-06-30 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0019
2023-05-11 2023-03-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 0.0014
2023-02-13 2022-12-31 13F OWENS CORNING COM 690742101 235 0 0.00 0 -100.00 0.0013
2022-11-14 2022-09-30 13F OWENS CORNING COM 690742101 235 0 0.00 19 11.76 0.0014
2022-08-11 2022-06-30 13F OWENS CORNING COM 690742101 235 0 0.00 17 -22.73 0.0012
2022-05-16 2022-03-31 13F OWENS CORNING COM 690742101 235 0 0.00 22 0.00 0.0014
2022-02-14 2021-12-31 13F OWENS CORNING COM 690742101 235 0 0.00 22 10.00 0.0014
2021-11-12 2021-09-30 13F OWENS CORNING COM 690742101 235 0 0.00 20 -13.04 0.0013
2021-07-26 2021-06-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 235 0 0.00 23 4.55 0.0015
2021-05-14 2021-03-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 235 0 0.00 22 29.41 0.0015
2021-02-12 2020-12-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 235 0 0.00 17 6.25 0.0012
2020-11-16 2020-09-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 235 85 56.67 16 100.00 0.0013
2020-08-14 2020-06-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 150 150 8 0.0007
2019-02-04 2018-12-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 0 -304 -100.00 0 -100.00
2018-11-06 2018-09-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 304 0 0.00 16 -15.79 0.0017
2018-07-16 2018-06-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 304 -2,727 -89.97 19 -92.21 0.0022
2018-05-10 2018-03-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 3,031 -173 -5.40 244 -17.29 0.0296
2018-02-02 2017-12-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 3,204 -862 -21.20 295 -6.05 0.0360
2017-11-03 2017-09-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 4,066 458 12.69 314 30.29 0.0426
2017-07-31 2017-06-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 3,608 304 9.20 241 18.72 0.0353
2017-05-01 2017-03-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 3,304 -183 -5.25 203 12.78 0.0318
2017-02-08 2016-12-31 13F OWENS CORNING NEW COM COMMON STOCK 690742101 3,487 3,107 817.63 180 800.00 0.0302
2016-11-03 2016-09-30 13F OWENS CORNING NEW COM COMMON STOCK 690742101 380 380 20 0.0036
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.