Owens Corning
US ˙ NYSE ˙ US6907421019

SecurityOC / Owens Corning
InstitutionCreative Planning
Latest Disclosed Ownership41,861 shares
Latest Disclosed Value $ 4,530,176
Creative Planning reports 45.45% increase in ownership of OC / Owens Corning

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 41,861 shares of Owens Corning (US:OC) valued at $4,530,197 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 28,781 shares of Owens Corning. This represents a change in shares of 45.45% during the quarter. The current value of the position is $5,030,018 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)
2026-05-12 2026-03-31 13F OWENS CORNING COM 690742101 41,861 13,080 45.45 4,530 40.68 0.0031
2026-02-17 2025-12-31 13F OWENS CORNING COM 690742101 28,781 15,852 122.61 3,221 76.05 0.0023
2025-11-14 2025-09-30 13F OWENS CORNING COM 690742101 12,929 2,456 23.45 1,829 27.01 0.0014
2025-08-08 2025-06-30 13F OWENS CORNING COM 690742101 10,473 265 2.60 1,440 -1.17 0.0012
2025-05-15 2025-03-31 13F OWENS CORNING COM 690742101 10,208 -79 -0.77 1,458 -16.79 0.0014
2025-02-14 2024-12-31 13F OWENS CORNING COM 690742101 10,287 498 5.09 1,752 1.33 0.0017
2024-10-11 2024-09-30 13F OWENS CORNING COM 690742101 9,789 1,379 16.40 1,728 18.36 0.0017
2024-08-15 2024-06-30 13F OWENS CORNING COM 690742101 8,410 772 10.11 1,461 14.69 0.0016
2024-05-13 2024-03-31 13F OWENS CORNING COM 690742101 7,638 466 6.50 1,274 19.76 0.0014
2024-02-14 2023-12-31 13F OWENS CORNING COM 690742101 7,172 135 1.92 1,063 10.84 0.0020
2023-11-16 2023-09-30 13F OWENS CORNING COM 690742101 7,037 269 3.97 960 8.61 0.0013
2023-07-21 2023-06-30 13F OWENS CORNING COM 690742101 6,768 627 10.21 883 50.17 0.0012
2023-05-15 2023-03-31 13F OWENS CORNING COM 690742101 6,141 529 9.43 588 23.01 0.0008
2023-02-10 2022-12-31 13F OWENS CORNING COM 690742101 5,612 2,303 69.60 479 83.85 0.0007
2022-11-03 2022-09-30 13F OWENS CORNING COM 690742101 3,309 263 8.63 260 15.04 0.0004
2022-08-15 2022-06-30 13F OWENS CORNING COM 690742101 3,046 408 15.47 226 -6.22 0.0004
2022-05-16 2022-03-31 13F OWENS CORNING COM 690742101 2,638 55 2.13 241 2.99 0.0004
2022-02-11 2021-12-31 13F OWENS CORNING COM 690742101 2,583 2,583 234 0.0004
2017-10-17 2017-09-30 13F OWENS CORNING COM 690742101 0 -2,043 -100.00 0 -100.00
2017-07-12 2017-06-30 13F OWENS CORNING COM 690742101 2,043 1,043 104.30 137 124.59 0.0007
2017-04-07 2017-03-31 13F OWENS CORNING COM 690742101 1,000 0 0.00 61 17.31 0.0003
2017-01-09 2016-12-31 13F OWENS CORNING COM 690742101 1,000 -79 -7.32 52 -10.34 0.0003
2016-10-12 2016-09-30 13F OWENS CORNING COM 690742101 1,079 0 0.00 58 3.57 0.0004
2016-07-12 2016-06-30 13F OWENS CORNING COM 690742101 1,079 -1,621 -60.04 56 -56.25 0.0004
2016-04-08 2016-03-31 13F OWENS CORNING COM 690742101 2,700 1,700 170.00 128 172.34 0.0010
2016-01-11 2015-12-31 13F OWENS CORNING COM 690742101 1,000 0 0.00 47 11.90 0.0004
2015-10-09 2015-09-30 13F OWENS CORNING COM 690742101 1,000 1,000 0.00 42 0.0004
2015-07-09 2015-06-30 13F OWENS CORNING COM 690742101 0 -1,307 -100.00 0 -100.00
2015-04-13 2015-03-31 13F OWENS CORNING COM 690742101 1,307 1,307 0.00 57 0.0005
2015-01-29 2014-12-31 13F OWENS CORNING COM 690742101 0 -2,007 -100.00 0 -100.00
2014-10-10 2014-09-30 13F OWENS CORNING COM 690742101 2,007 -358 -15.14 64 -29.67 0.0007
2014-08-20 2014-06-30 13F OWENS CORNING COM 690742101 2,365 645 37.50 91 22.97 0.0012
2014-04-11 2014-03-31 13F OWENS CORNING COM 690742101 1,720 0 0.00 74 5.71 0.0011
2014-01-06 2013-12-31 13F OWENS CORNING COM 690742101 1,720 362 26.66 70 34.62 0.0012
2013-10-10 2013-09-30 13F OWENS CORNING COM 690742101 1,358 0 0.00 52 -1.89 0.0010
2013-07-09 2013-06-30 13F OWENS CORNING COM 690742101 1,358 1,358 53 0.0012
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.