Owens Corning CIO granted 2,258 RSUs in Form 4

Owens Corning Chief Information Officer Ann Lizabeth Baymiller reported equity compensation activity.

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Rhea-AI Filing Summary

Owens Corning Chief Information Officer Ann Lizabeth Baymiller reported equity compensation activity. On 02/04/2026 she received 2,258 shares of $.01 par value common stock as restricted stock units granted under the Owens Corning 2023 Stock Plan at $132.83 per share. On 02/05/2026, 415 shares were withheld at $132.23 per share to cover tax obligations upon vesting of restricted stock units. After these transactions, she directly beneficially owned 8,104 Owens Corning common shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Baymiller Ann Lizabeth

Role Chief Information Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	$.01 Par Value Common	415	$132.23	$55K
Grant/Award	$.01 Par Value Common	2,258	$132.83	$300K

Holdings After Transaction: $.01 Par Value Common — 8,104 shares (Direct)

Footnotes (2)

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.

FAQ

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What insider transactions did Owens Corning (OC) report for Ann Lizabeth Baymiller?

Owens Corning Chief Information Officer Ann Lizabeth Baymiller reported receiving 2,258 shares of $.01 par value common stock as restricted stock units, then having 415 shares withheld to cover taxes, leaving her with 8,104 directly owned shares after the reported transactions.

How many Owens Corning (OC) shares did the CIO receive as equity compensation?

The Chief Information Officer received 2,258 shares of Owens Corning $.01 par value common stock on February 4, 2026. These shares were granted as restricted stock units under the Owens Corning 2023 Stock Plan, reflecting part of her long-term equity-based compensation.

Why were 415 Owens Corning (OC) shares withheld in this Form 4 filing?

The 415 Owens Corning shares were withheld upon vesting of restricted stock units to satisfy tax withholding obligations. This is a common administrative transaction where shares are retained instead of the insider paying cash for the associated tax liability.

How many Owens Corning (OC) shares does the CIO own after these transactions?

After the reported transactions, the Chief Information Officer directly beneficially owned 8,104 shares of Owens Corning common stock. This figure reflects the 2,258-share grant and the 415 shares withheld for taxes, as disclosed in the Form 4 filing.

What stock plan governed the restricted stock units reported by Owens Corning (OC)?

The restricted stock units reported for the Chief Information Officer were granted under the Owens Corning 2023 Stock Plan. This plan provides equity-based awards like restricted stock units as part of the company’s executive and employee compensation programs.

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Accepted by SEC EDGAR 02/06/2026 - 04:36 PM

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

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)
02/04/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
$.01 Par Value Common	02/04/2026		A		2,258⁽¹⁾	A	$132.83	8,519	D
$.01 Par Value Common	02/05/2026		F		415⁽²⁾	D	$132.23	8,104	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

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

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

Remarks:

	/s/ Katherine M. Serevitch, Attorney-in-Fact	02/06/2026
	** 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.

Source: View Original Filing on SEC EDGAR