Owens Corning (NYSE: OC) CIO granted shares, withholdings for taxes

Rhea-AI Filing Summary

Owens Corning Chief Information Officer Ann Lizabeth Baymiller reported equity compensation activity. She received a grant of 1,255 shares of $.01 par value common stock at no cost, awarded in connection with the settlement of performance share units for the performance cycle ended December 31, 2025.

In a related move, 562 shares were disposed of at $123.48 per share to satisfy tax withholding obligations upon settlement of those performance share units. After these transactions, she directly owned 8,797 shares of Owens Corning common stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Baymiller Ann Lizabeth

Role Chief Information Officer

Type	Security	Shares	Price	Value
Grant/Award	$.01 Par Value Common	1,255	$0.00	--
Tax Withholding	$.01 Par Value Common	562	$123.48	$69K

Holdings After Transaction: $.01 Par Value Common — 9,359 shares (Direct)

Footnotes (1)

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

Form 4 Insider Transactions: What Each Field Means →

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^*

Baymiller Ann Lizabeth

(Last) (First) (Middle)

ONE OWENS CORNING PARKWAY

(Street)

TOLEDO OH 43659

(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)
	Chief Information Officer

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		1,255(1)	A	$0	9,359	D
$.01 Par Value Common	02/25/2026		F		562(2)	D	$123.48	8,797	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 did Owens Corning (OC) report in this Form 4 filing?

Owens Corning reported that Chief Information Officer Ann Lizabeth Baymiller received 1,255 common shares as an equity award and had 562 shares withheld to cover taxes upon settlement of performance share units for the cycle ended December 31, 2025.

How many Owens Corning (OC) shares did the CIO acquire in this transaction?

Ann Lizabeth Baymiller acquired 1,255 shares of Owens Corning common stock at no cost. The award was granted in connection with the settlement of performance share units tied to a performance cycle that ended on December 31, 2025.

Why were 562 Owens Corning (OC) shares disposed of in the Form 4?

The filing shows 562 shares were disposed of at $123.48 per share to satisfy tax withholding obligations. These shares were withheld when performance share units settled, rather than sold in an open-market transaction by the Chief Information Officer.

What is Ann Lizabeth Baymiller’s Owens Corning (OC) share ownership after the Form 4 transactions?

After the grant and tax-withholding disposition, Ann Lizabeth Baymiller directly holds 8,797 shares of Owens Corning common stock. This total reflects both the 1,255-share award and the 562 shares withheld to cover associated tax obligations on settlement.

What type of compensation does the Owens Corning (OC) Form 4 reflect?

The Form 4 reflects equity-based compensation through performance share units. Upon settlement for the performance cycle ended December 31, 2025, 1,255 common shares were awarded and 562 shares were withheld to meet the Chief Information Officer’s tax obligations.