Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionLarson Financial Group LLC
Latest Disclosed Ownership328 shares
Latest Disclosed Value $ 35,496
Larson Financial Group LLC reports 1.55% increase in ownership of OC / Owens Corning

On May 15, 2026 - Larson Financial Group LLC filed a 13F-HR form disclosing ownership of 328 shares of Owens Corning (US:OC) valued at $35,496 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 323 shares of Owens Corning. This represents a change in shares of 1.55% during the quarter. The current value of the position is $39,412 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 328 5 1.55 35 -2.78 0.0011
2026-02-06 2025-12-31 13F OWENS CORNING COM 690742101 323 26 8.75 36 -14.29 0.0012
2025-11-14 2025-09-30 13F OWENS CORNING COM 690742101 297 27 10.00 42 13.51 0.0015
2025-08-08 2025-06-30 13F OWENS CORNING COM 690742101 270 -41 -13.18 37 -15.91 0.0015
2025-05-02 2025-03-31 13F OWENS CORNING COM 690742101 311 37 13.50 44 -4.35 0.0021
2025-02-07 2024-12-31 13F OWENS CORNING COM 690742101 274 0 0.00 47 -4.17 0.0024
2024-11-12 2024-09-30 13F OWENS CORNING COM 690742101 274 21 8.30 48 11.63 0.0027
2024-08-02 2024-06-30 13F OWENS CORNING COM 690742101 253 2 0.80 44 4.88 0.0030
2024-05-03 2024-03-31 13F OWENS CORNING COM 690742101 251 0 0.00 42 10.81 0.0032
2024-02-01 2023-12-31 13F OWENS CORNING COM 690742101 251 1 0.40 37 8.82 0.0033
2023-11-03 2023-09-30 13F OWENS CORNING COM 690742101 250 -320 -56.14 34 -54.05 0.0034
2023-08-03 2023-06-30 13F OWENS CORNING COM 690742101 570 1 0.18 74 37.04 0.0074
2023-05-04 2023-03-31 13F OWENS CORNING COM 690742101 569 2 0.35 54 12.50 0.0059
2023-02-03 2022-12-31 13F OWENS CORNING COM 690742101 567 2 0.35 48 9.09 0.0058
2022-11-03 2022-09-30 13F OWENS CORNING COM 690742101 565 1 0.18 44 4.76 0.0063
2022-08-04 2022-06-30 13F OWENS CORNING COM 690742101 564 1 0.18 42 -17.65 0.0073
2022-05-05 2022-03-31 13F OWENS CORNING COM 690742101 563 1 0.18 51 0.00 0.0081
2022-02-03 2021-12-31 13F OWENS CORNING COM 690742101 562 1 0.18 51 6.25 0.0081
2021-11-04 2021-09-30 13F OWENS CORNING COM 690742101 561 1 0.18 48 -12.73 0.0095
2021-08-10 2021-06-30 13F OWENS CORNING COM 690742101 560 -6 -1.06 55 5.77 0.0128
2021-05-06 2021-03-31 13F/A-1 OWENS CORNING COM 690742101 566 1 0.18 52 20.93 0.0153
2021-04-08 2021-03-31 13F OWENS CORNING COM 690742101 565 0 43 0.0146
2021-01-14 2020-12-31 13F OWENS CORNING COM 690742101 565 1 0.18 43 10.26 0.0146
2020-10-08 2020-09-30 13F OWENS CORNING COM 690742101 564 307 119.46 39 178.57 0.0160
2020-07-10 2020-06-30 13F OWENS CORNING COM 690742101 257 0 0.00 14 40.00 0.0067
2020-04-09 2020-03-31 13F OWENS CORNING COM 690742101 257 0 0.00 10 -41.18 0.0063
2020-01-10 2019-12-31 13F OWENS CORNING COM 690742101 257 7 2.80 17 6.25 0.0098
2019-10-11 2019-09-30 13F OWENS CORNING COM 690742101 250 0 0.00 16 6.67 0.0105
2019-07-16 2019-06-30 13F OWENS CORNING COM 690742101 250 250 15 0.0111
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.