Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership5,249 shares
Latest Disclosed Value $ 568,104
Coldstream Capital Management Inc reports 12.35% increase in ownership of OC / Owens Corning

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 5,249 shares of Owens Corning (US:OC) valued at $568,047 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 4,672 shares of Owens Corning. This represents a change in shares of 12.35% during the quarter. The current value of the position is $630,720 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)
2026-05-08 2026-03-31 13F OWENS CORNING COM 690742101 5,249 577 12.35 568 8.81 0.0061
2026-02-09 2025-12-31 13F OWENS CORNING COM 690742101 4,672 -921 -16.47 523 -34.01 0.0067
2025-11-19 2025-09-30 13F OWENS CORNING COM 690742101 5,593 167 3.08 791 6.03 0.0107
2025-08-12 2025-06-30 13F OWENS CORNING COM 690742101 5,426 -189 -3.37 746 -6.87 0.0122
2025-05-13 2025-03-31 13F OWENS CORNING COM 690742101 5,615 -61 -1.07 802 -17.08 0.0171
2025-02-14 2024-12-31 13F OWENS CORNING COM 690742101 5,676 339 6.35 967 2.33 0.0206
2024-11-18 2024-09-30 13F/A-1 OWENS CORNING COM 690742101 5,337 -69 -1.28 944 0.53 0.0204
2024-11-18 2024-09-30 13F OWENS CORNING COM 690742101 5,337 944
2024-08-07 2024-06-30 13F OWENS CORNING COM 690742101 5,406 51 0.95 939 5.15 0.0229
2024-05-14 2024-03-31 13F OWENS CORNING COM 690742101 5,355 7 0.13 893 12.75 0.0227
2024-02-09 2023-12-31 13F OWENS CORNING COM 690742101 5,348 94 1.79 793 10.61 0.0222
2023-11-02 2023-09-30 13F OWENS CORNING COM 690742101 5,254 -69 -1.30 717 3.17 0.0234
2023-08-03 2023-06-30 13F OWENS CORNING COM 690742101 5,323 113 2.17 695 39.08 0.0220
2023-05-15 2023-03-31 13F OWENS CORNING COM 690742101 5,210 -55 -1.04 499 11.14 0.0168
2023-01-10 2022-12-31 13F OWENS CORNING COM 690742101 5,265 425 8.78 449 24.72 0.0164
2022-08-08 2022-06-30 13F/A-1 OWENS CORNING COM 690742101 4,840 112 2.37 360 -16.86 0.0140
2022-08-08 2022-06-30 13F OWENS CORNING COM 690742101 2,758 -1,970 205 0.0087
2022-05-11 2022-03-31 13F OWENS CORNING COM 690742101 4,728 103 2.23 433 3.34 0.0149
2022-02-11 2021-12-31 13F OWENS CORNING COM 690742101 4,625 4,625 419 0.0132
2021-11-12 2021-09-30 13F OWENS CORNING COM 690742101 0 -29,582 -100.00 0 -100.00
2021-08-16 2021-06-30 13F OWENS CORNING COM 690742101 29,582 27,031 1,059.62 2,896 1,132.34 0.1166
2021-06-16 2021-03-31 13F OWENS CORNING COM 690742101 2,551 2,551 235 0.0138
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.