Brian Chambers - 25 Feb 2026 Form 4 Insider Report for Owens Corning (OC)

Role
Chair, President and CEO, Director
Signature
/s/ Katherine M. Serevitch, Attorney-in-Fact
Issuer symbol
OC
Transactions as of
25 Feb 2026
Net transactions value
-$3,057,365
Form type
4
Filing time
27 Feb 2026, 16:24:43 UTC
Previous filing
06 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Chambers Brian Chair, President and CEO, Director ONE OWENS CORNING PARKWAY, TOLEDO /s/ Katherine M. Serevitch, Attorney-in-Fact 27 Feb 2026 0001339551

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OC $.01 Par Value Common Award $0 +55,512 +15% $0.000000 420,297 25 Feb 2026 Direct F1
transaction OC $.01 Par Value Common Tax liability $3,057,365 -24,760 -5.9% $123.48 395,537 25 Feb 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Awarded in connection with the settlement of performance share units for the performance cycle ended December 31, 2025.
F2 Shares withheld upon the settlement of performance share units to satisfy tax withholding obligations.