Owens Corning (OC) director adds 367 dividend-equivalent share units in Form 4

Rhea-AI Filing Summary

Owens Corning director John David Williams reported receiving an additional 367.146 shares of $.01 par value common stock equivalents on April 9, 2026. These were recorded as a grant/award acquisition, reflecting the accrual of dividend equivalents on deferred stock units rather than an open-market purchase.

Following this routine compensation-related accrual, Williams’ directly held and deferred stock unit position reported in this filing increased to 53,789.573 shares. No open-market buying or selling activity was reported in this Form 4.

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	367.146	$114.95	$42K

Holdings After Transaction: $.01 Par Value Common — 53,789.573 shares (Direct)

Footnotes (1)

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Key Figures

Grant/award shares: 367.146 shares Reference price per share: $114.95 per share Holdings after transaction: 53,789.573 shares

3 metrics

Grant/award shares 367.146 shares Grant/award acquisition of common stock equivalents on April 9, 2026

Reference price per share $114.95 per share Valuation of the 367.146 awarded share equivalents

Holdings after transaction 53,789.573 shares Total directly reported holdings following the Form 4 transaction

Key Terms

dividend equivalents, deferred stock units, grant/award acquisition

3 terms

dividend equivalents financial

"Accrual of dividend equivalents on deferred stock units."

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

deferred stock units financial

"Accrual of dividend equivalents on deferred stock units."

Deferred stock units are promises from a company to give an employee shares of stock at a future date, often after certain conditions are met or after leaving the company. They function like a form of delayed compensation, allowing employees to earn shares over time. For investors, they represent potential future ownership in the company, but do not provide immediate voting rights or dividends until the shares are actually received.

grant/award acquisition financial

"transaction_action": "grant/award acquisition""

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 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)
04/09/2026

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	04/09/2026		A		367.146(1)	A	$114.95	53,789.573	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	04/13/2026
	** 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)

FAQ

What insider transaction did Owens Corning (OC) report for John David Williams?

Owens Corning director John David Williams reported acquiring 367.146 additional common stock equivalents. The Form 4 shows this as a grant or award tied to dividend equivalents on deferred stock units, not as an open-market share purchase or sale.

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

After the reported transaction, John David Williams’ directly reported holdings total 53,789.573 shares or share equivalents. The increase reflects accrued dividend equivalents on deferred stock units, which are part of his director compensation, rather than a discretionary market trade.

Was the Owens Corning (OC) Form 4 transaction a market buy or sell?

The Form 4 does not show a market buy or sell. It records a grant or award acquisition coded “A”, representing 367.146 shares from dividend equivalents on deferred stock units, a routine compensation mechanism rather than an open-market trade by the director.

What price per share is associated with John David Williams’ new Owens Corning (OC) units?

The newly credited 367.146 share equivalents are reported at a reference price of $114.95 per share. This price is part of the Form 4 disclosure and relates to the valuation of dividend equivalents, not to an actual open-market purchase price paid by the director.

What does “accrual of dividend equivalents on deferred stock units” mean for Owens Corning (OC)?

The footnote explains the director received extra deferred stock units as dividend equivalents. Instead of cash dividends, additional share equivalents accumulate on existing deferred units, increasing the reported holdings without the director buying shares in the open market.