Owens Corning (OC) executive receives stock award and withholds shares for taxes

Rhea-AI Filing Summary

Owens Corning executive reports stock award and tax share withholding

Owens Corning President, Doors, Rachel Barthelemy Marcon reported two transactions in $.01 par value common stock on February 25, 2026. She acquired 1,322 shares at $0.00 per share as a grant/award in connection with the settlement of performance share units for the performance cycle ended December 31, 2025.

On the same date, 393 shares were disposed of at $123.48 per share to satisfy tax withholding obligations upon settlement of those performance share units, a tax-withholding disposition rather than an open‑market sale. After these transactions, she directly owned 16,548 shares of Owens Corning common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Marcon Rachel Barthelemy

(Last) (First) (Middle)

ONE OWENS CORNING PARKWAY

(Street)

TOLEDO OH 43659-0001

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Owens Corning [ OC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Doors

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
$.01 Par Value Common	02/25/2026		A		1,322(1)	A	$0	16,941	D
$.01 Par Value Common	02/25/2026		F		393(2)	D	$123.48	16,548	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Awarded in connection with the settlement of performance share units for the performance cycle ended December 31, 2025.

2. Shares withheld upon the settlement of performance share units to satisfy tax withholding obligations.

Remarks:

	/s/ Katherine M. Serevitch, Attorney-in-Fact	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Owens Corning (OC) report for Rachel Barthelemy Marcon?

Owens Corning reported that President, Doors, Rachel Barthelemy Marcon received a grant of 1,322 common shares and had 393 shares withheld to cover taxes. Both transactions occurred on February 25, 2026, related to performance share units settling for the 2025 performance cycle.

Was the Owens Corning (OC) Form 4 transaction an open-market buy or sell?

The Form 4 does not show open-market buying or selling. It reports a grant of 1,322 common shares and a disposition of 393 shares solely to satisfy tax withholding obligations upon settlement of performance share units, rather than discretionary open-market trades.

How many Owens Corning (OC) shares does Rachel Barthelemy Marcon own after these transactions?

After the reported transactions, Rachel Barthelemy Marcon directly owns 16,548 Owens Corning common shares. This reflects both the 1,322-share award from performance share unit settlement and the 393 shares withheld to pay tax obligations tied to that equity compensation event.

What is the nature of the 1,322-share award reported for Owens Corning (OC)?

The 1,322-share award is an equity grant tied to performance. It was awarded in connection with the settlement of performance share units for the performance cycle that ended on December 31, 2025, compensating the President, Doors, in Owens Corning common shares.

Why were 393 Owens Corning (OC) shares disposed of in the Form 4 filing?

The 393 shares were withheld to cover tax obligations. They were disposed of at $123.48 per share upon settlement of performance share units, specifically to satisfy tax withholding requirements, not as a discretionary sale into the open market by the executive.

What prices were reported for the Owens Corning (OC) Form 4 transactions?

The 1,322-share grant to Rachel Barthelemy Marcon carried a reported price of $0.00 per share, reflecting a compensatory award. The 393 shares withheld for taxes were valued at $123.48 per share when used to satisfy her tax withholding obligations.