Owens Corning (NYSE: OC) director awarded 381 deferred shares in Form 4

Rhea-AI Filing Summary

Owens Corning director John David Williams received an equity grant tied to his board compensation. On the reported date, he acquired 381 shares of $.01 par value common stock at a price of $122.07 per share as a grant, described as the deferred share portion of his quarterly director retainer and fees. After this award, his directly owned stake increased to 53,422.427 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Williams John David

Role Director

Type	Security	Shares	Price	Value
Grant/Award	$.01 Par Value Common	381	$122.07	$47K

Holdings After Transaction: $.01 Par Value Common — 53,422.427 shares (Direct)

Footnotes (1)

1. [object Object]

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^*

Williams John David

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

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	02/27/2026		A		381(1)	A	$122.07	53,422.427	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. Deferred share portion of quarterly Director retainer/fees.

Remarks:

	/s/ Katherine M. Serevitch, Attorney-in-Fact	03/03/2026
	** 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 transaction did Owens Corning (OC) report for John David Williams?

Owens Corning reported that director John David Williams acquired 381 shares of common stock through a grant. The filing describes this as the deferred share portion of his quarterly director retainer and fees, increasing his directly owned holdings to 53,422.427 shares.

Was the Owens Corning (OC) Form 4 transaction a market purchase or a grant?

The Form 4 shows a grant, not a market purchase. John David Williams received 381 shares coded as an acquisition under a grant or award, representing the deferred share portion of his quarterly director retainer and related fees, rather than an open-market buy.

How many Owens Corning (OC) shares does John David Williams own after this Form 4?

After this transaction, John David Williams directly owns 53,422.427 Owens Corning common shares. The increase comes from a 381-share grant linked to his quarterly director retainer and fees, as disclosed in the Form 4 insider transaction report.

What price per share is reported in the Owens Corning (OC) Form 4 grant?

The Form 4 lists a price of $122.07 per share for the 381-share grant. This price is used for reporting purposes on the award that represents the deferred share portion of John David Williams’ quarterly director retainer and board fees.

How is the Owens Corning (OC) director compensation structured in this Form 4?

Part of the director’s compensation is paid in deferred shares. The Form 4 notes that 381 shares granted to John David Williams represent the deferred share portion of his quarterly director retainer and fees, aligning a portion of his board pay with company equity.

Does the Owens Corning (OC) Form 4 indicate direct or indirect ownership for the new shares?

The Form 4 classifies the 381 newly awarded shares as directly owned. Ownership is coded as direct, and no footnote shifts voting or investment authority to another entity, so the shares are attributed to John David Williams personally.