Owens Corning — Director's Dealing 2024

Feb 5, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Owens Corning (OC)
CIK: 0001370946
Period of Report: 2024-02-01

Reporting Person: Chambers Brian (Director, Chair, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-02-01	$.01 Par Value Common	A	19270	—	Acquired	272899	Direct
2024-02-01	$.01 Par Value Common	F	3203	$155.68	Disposed	269696	Direct
2024-02-01	$.01 Par Value Common	M	9100	$37.65	Acquired	278796	Direct
2024-02-01	$.01 Par Value Common	S	9100	$153.57	Disposed	269696	Direct
2024-02-02	$.01 Par Value Common	F	2713	$155.42	Disposed	266983	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-02-01	Option (right to purchase)	$37.65	M	9100	Disposed	2024-02-05	$.01 Par Value Common (9100)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
$.01 Par Value Common	25	Indirect

Footnotes

F1: Restricted stock units granted under the Owens Corning 2023 Stock Plan.

F2: Shares withheld upon vesting of restricted stock units to satisfy tax withholding obligations.

F3: The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $151.73 to $155.62, 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.

F4: The Reporting Person may be deemed to have beneficial ownership of these shares due to his adult child residing in his household. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.