Owens Corning — Director's Dealing 2023

May 22, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Owens Corning (OC)
CIK: 0001370946
Period of Report: 2023-05-18

Reporting Person: Smith Gunner (President, Roofing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-18	$.01 Par Value Common	M	3400	$37.65	Acquired	41215	Direct
2023-05-18	$.01 Par Value Common	S	3400	$110.00	Disposed	37815	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-18	Option (right to purchase)	$37.65	M	3400	Disposed	2024-02-05	$.01 Par Value Common (3400)	Direct

Footnotes

F1: This reported transaction was made pursuant to a Rule 10b5-1 trading plan entered into by the reporting person prior to February 27, 2023.

F2: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $110.00 to $110.02, inclusive. The Reporting Person undertakes to provide to Owens Corning, any security holder of Owens Corning, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.