Director Edward Lonergan adds 316 Owens Corning (OC) shares

Rhea-AI Filing Summary

Owens Corning director Edward F. Lonergan reported an increase in his stake through an automatic share accrual. On January 21, 2026, he acquired 316.42 shares of Owens Corning $.01 par value common stock, coded as an acquisition. A footnote explains this was due to the accrual of dividend equivalents on deferred stock units, meaning these shares were credited in connection with dividends rather than purchased on the open market. Following this transaction, Lonergan directly beneficially owned 52,254.899 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

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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)
01/21/2026

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	01/21/2026		A		316.42(1)	A	$124.68	52,254.899	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. Accrual of dividend equivalents on deferred stock units.

Remarks:

	/s/ Katherine M. Serevitch, Attorney-in-Fact	01/23/2026
	** 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 Edward F. Lonergan?

Owens Corning reported that director Edward F. Lonergan acquired 316.42 shares of $.01 par value common stock on January 21, 2026, coded as an acquisition.

How did Edward F. Lonergan receive the additional Owens Corning (OC) shares?

A footnote states the shares reflect the accrual of dividend equivalents on deferred stock units, meaning the shares were credited in connection with dividends rather than bought in the market.

What is Edward F. Lonergans total direct ownership in Owens Corning after this Form 4?

After the reported transaction, Edward F. Lonergan directly beneficially owned 52,254.899 shares of Owens Corning $.01 par value common stock.

What price per share was reported in the Owens Corning (OC) Form 4 transaction?

The Form 4 lists a transaction price of $124.68 per share for the 316.42 shares of Owens Corning common stock credited to Edward F. Lonergan.

What is Edward F. Lonergans relationship to Owens Corning (OC)?

Edward F. Lonergan is reported as a director of Owens Corning and filed the Form 4 as a single reporting person.

Is Edward F. Lonergan19s ownership in Owens Corning direct or indirect?

The Form 4 indicates that the 52,254.899 shares held after the transaction are owned directly by Edward F. Lonergan.