Owens Corning doors chief sells 900 shares

Owens Corning (OC) reported that officer Rachel Barthelemy Marcon, President, Doors, sold 900 shares of $.01 par value common stock on 2026-08-28 at $144.07 per share in a sale characterized as an open market or private transaction.

Rhea-AI Filing Summary

Owens Corning (OC) reported that officer Rachel Barthelemy Marcon, President, Doors, sold 900 shares of $.01 par value common stock on 2026-08-28 at $144.07 per share in a sale characterized as an open market or private transaction. After this transaction, she directly holds 21,449 shares. The filing indicates the transaction was made pursuant to a Rule 10b5-1 trading plan.

Insider Trade Summary 10b5-1

Net Seller: 900 shares

Net Sell 1 txn

Insider Marcon Rachel Barthelemy

Role President, Doors

Sold 900 shs ($130K)

Type	Security	Shares	Price	Value
Sale	$.01 Par Value Common	900	$144.07	$130K

Holdings After Transaction: $.01 Par Value Common — 21,449 shares (Direct)

Key Figures

Shares sold: 900 shares Sale price per share: $144.07 per share Shares owned after sale: 21,449 shares

3 metrics

Shares sold 900 shares Common stock sold by Rachel Barthelemy Marcon on 2026-08-28

Sale price per share $144.07 per share Price for the 900 shares sold on 2026-08-28

Shares owned after sale 21,449 shares Direct holdings of Rachel Barthelemy Marcon after the reported sale

Key Terms

Rule 10b5-1, open market or private transaction, Form 4

3 terms

Rule 10b5-1 regulatory

"The filing indicates the transaction was made pursuant to a Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open market or private transaction financial

"transaction_code_description: Sale in open market or private transaction"

Form 4 regulatory

"Owens Corning (OC) disclosed this insider sale in a Form 4 filing"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

What insider transaction did Owens Corning (OC) disclose in this Form 4?

Owens Corning disclosed that officer Rachel Barthelemy Marcon, President, Doors, sold 900 shares of common stock on 2026-08-28 at $144.07 per share in an open market or private transaction under a Rule 10b5-1 trading plan.

How many Owens Corning (OC) shares did Rachel Barthelemy Marcon sell and at what price?

Rachel Barthelemy Marcon sold 900 shares of Owens Corning $.01 par value common stock at $144.07 per share on 2026-08-28 in a transaction described as a sale in open market or private transaction.

How many Owens Corning (OC) shares does Rachel Barthelemy Marcon own after this sale?

Following the reported sale, Rachel Barthelemy Marcon directly owns 21,449 shares of Owens Corning common stock. This figure reflects her direct holdings immediately after the 900-share sale reported for 2026-08-28.

Was the Owens Corning (OC) insider sale made under a Rule 10b5-1 trading plan?

Yes. The Form 4 indicates, via the Rule 10b5-1 checkbox, that the reported transaction by Rachel Barthelemy Marcon was made pursuant to a Rule 10b5-1 trading plan.

Is the Owens Corning (OC) transaction a buy or a sell for the insider?

The insider transaction is a sale. Rachel Barthelemy Marcon disposed of 900 shares of Owens Corning common stock on 2026-08-28, leaving her with 21,449 shares held directly afterward.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/01/2026 - 04:15 PM Accepted by SEC EDGAR 09/01/2026 - 04:13 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).

X

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^*

Marcon Rachel Barthelemy

(Last) (First) (Middle)

ONE OWENS CORNING PARKWAY

(Street)

TOLEDO OHIO 43659-0001

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2026

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	08/28/2026		S		900	D	$144.07	21,449	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:

Remarks:

	/s/ Katherine M. Serevitch, Attorney-in-Fact	09/01/2026
	** 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)