Owens Corning — Director's Dealing 2026

Feb 27, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Owens Corning (OC)
CIK: 0001370946
Period of Report: 2026-02-25

Reporting Person: Fister Todd W (EVP & Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-25	$.01 Par Value Common	A	10309	—	Acquired	49705.812	Direct
2026-02-25	$.01 Par Value Common	F	4754	$123.48	Disposed	44951.812	Direct

Footnotes

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.