Owens Corning (OC) director adds 748 deferred shares in quarterly fee grant

Rhea-AI Filing Summary

Owens Corning director Edward F. Lonergan received an equity award in the form of deferred shares. On this Form 4, he reported an acquisition of 748 shares of $.01 par value common stock at a price of $122.07 per share, described as the deferred share portion of his quarterly director retainer and fees. Following this grant, his directly owned stake increased to 53,002.899 shares.

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

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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^*

Lonergan Edward F

(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		748(1)	A	$122.07	53,002.899	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).
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FAQ

What insider transaction did Owens Corning (OC) director Edward F. Lonergan report?

Edward F. Lonergan reported acquiring 748 Owens Corning common shares as an equity grant. The shares represent the deferred share portion of his quarterly director retainer and fees, increasing his directly owned position to 53,002.899 shares after the transaction.

On what date did Edward F. Lonergan receive the Owens Corning (OC) share award?

Edward F. Lonergan received the share award on February 27, 2026. The Form 4 shows this as a grant or award acquisition of common stock, tied to his quarterly director retainer and fees, rather than an open-market purchase or sale transaction.

How many Owens Corning (OC) shares did Edward F. Lonergan hold after the reported grant?

After the reported grant, Edward F. Lonergan directly owned 53,002.899 Owens Corning shares. This total reflects the addition of 748 deferred shares granted as part of his quarterly director retainer and fees, as disclosed in the Form 4 insider filing.

What was the price per share for Edward F. Lonergan’s Owens Corning (OC) equity grant?

The equity grant to Edward F. Lonergan was valued at $122.07 per Owens Corning share. This price is used in the Form 4 to quantify the 748 deferred shares received as part of his quarterly director retainer and associated board compensation.

How is Edward F. Lonergan’s Owens Corning (OC) share grant described in the footnote?

The footnote describes the 748-share grant as the deferred share portion of Edward F. Lonergan’s quarterly director retainer and fees. This indicates the award is part of standard board compensation, rather than a discretionary market transaction or a separate incentive plan purchase.

Does Edward F. Lonergan’s Form 4 for Owens Corning (OC) show a buy or sell transaction?

The Form 4 does not show a market buy or sell; it shows an acquisition coded as a grant or award. The 748 shares were received as deferred stock tied to Lonergan’s quarterly director retainer and fees, increasing his directly held position in Owens Corning.