Owens Corning director granted 407 deferred shares

CORDEIRO EDUARDO E reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

CORDEIRO EDUARDO E reported acquisition or exercise transactions in this Form 4 filing.

Owens Corning director Eduardo E. Cordeiro reported a grant of 407 shares of $.01 par value common stock. The shares were valued at $121.67 each and represent the deferred share portion of his quarterly director retainer and fees, rather than an open-market purchase.

After this compensation-related award, Cordeiro directly holds a total of 15,924.532 Owens Corning shares. This filing reflects routine equity compensation for board service, not a discretionary trading decision in the market.

Insider Trade Summary

Grant/Award: 407 shares

Grant/Award 1 txn

Insider CORDEIRO EDUARDO E

Role Director

Type	Security	Shares	Price	Value
Grant/Award	$.01 Par Value Common	407	$121.67	$50K

Holdings After Transaction: $.01 Par Value Common — 15,924.532 shares (Direct)

Footnotes (1)

1. F1. Deferred share portion of quarterly Director retainer/fees.

Key Figures

Shares granted: 407 shares Grant value per share: $121.67 per share Total shares after transaction: 15,924.532 shares

3 metrics

Shares granted 407 shares Director equity grant on 2026-05-08

Grant value per share $121.67 per share Value used for deferred director retainer

Total shares after transaction 15,924.532 shares Cordeiro direct holdings following grant

Key Terms

Deferred share, quarterly Director retainer/fees, Grant, award, or other acquisition

3 terms

Deferred share financial

"Deferred share portion of quarterly Director retainer/fees."

quarterly Director retainer/fees financial

"Deferred share portion of quarterly Director retainer/fees."

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Owens Corning (OC) director Eduardo Cordeiro report in this Form 4?

Director Eduardo E. Cordeiro reported receiving 407 shares of Owens Corning common stock as a grant. The award is part of his quarterly director compensation and is structured as deferred shares rather than a cash payment or open-market share purchase.

Is Eduardo Cordeiro buying or selling Owens Corning (OC) shares in this filing?

This filing shows an acquisition through a share grant, not an open-market trade. Cordeiro received 407 deferred shares as part of his quarterly director retainer and fees, which is standard equity compensation rather than a discretionary buy or sell transaction.

How many Owens Corning (OC) shares did Eduardo Cordeiro receive and at what value?

Eduardo Cordeiro received 407 shares of Owens Corning $.01 par value common stock. The filing reports a value of $121.67 per share for the grant, reflecting the share price used to calculate his deferred equity compensation for the quarter.

What are Eduardo Cordeiro’s total Owens Corning (OC) holdings after this grant?

Following the 407-share grant, Eduardo Cordeiro directly holds 15,924.532 Owens Corning shares. This figure includes the newly awarded deferred shares and provides context for the overall size of his equity position as a company director.

What does ‘Deferred share portion of quarterly Director retainer/fees’ mean for Owens Corning (OC)?

It means part of the director’s regular quarterly compensation is paid in company stock instead of cash. For Cordeiro, 407 shares valued at $121.67 each represent the equity component of his retainer, aligning director pay with shareholder interests through stock ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/12/2026 - 04:10 PM Learn about SEC filing dates

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^*

CORDEIRO EDUARDO E

(Last) (First) (Middle)

ONE OWENS CORNING PARKWAY

(Street)

TOLEDO OHIO 43659

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	05/08/2026		A		407(1)	A	$121.67	15,924.532	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	05/12/2026
	** 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.
* Form 4: SEC 1474 (03-26)