Owens Corning

For the period ended Sep 30, 2025. Filed Nov 5, 2025.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 5, 2025

OC$122.97-3.2%Stored close · as of Nov 10, 2026

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Contents

Unregistered Sales of Equity Securities and Use of Proceeds

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities.

None.

Issuer Purchases of Equity Securities

The following table provides information about Owens Corning’s purchases of its common stock for each month during the quarterly period covered by this report:

Period	Total Number of Shares (or Units) Purchased*	Average Price Paid per Share(or Unit)	Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs**	Maximum Number of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs**
July 1-31, 2025	1,764	$141.63	—	16,045,311
August 1-31, 2025	923,164	151.68	923,077	15,122,234
September 1-30, 2025	526,766	152.05	526,190	14,596,044
Total	1,451,694	$151.80	1,449,267

The Company retained an aggregate of 2,427 shares surrendered to satisfy tax withholding obligations in connection with the vesting of restricted share units granted to our employees.

On May 13, 2025, the Board of Directors approved a new share repurchase program under which the Company is authorized to repurchase up to 12 million shares of the Company’s outstanding common stock (the “2025 Repurchase Authorization”). On December 1, 2022, the Board of Directors approved a share repurchase program under which the Company is authorized to repurchase up to 10 million shares of the Company’s outstanding common stock (together with the 2025 Repurchase Authorization, the "Repurchase Authorizations"). The Repurchase Authorizations enable the Company to repurchase shares through the open market, privately negotiated, or other transactions. The actual number of shares repurchased will depend on timing, market conditions and other factors and will be at the Company’s discretion. The Company repurchased 3.8 million shares of its common stock for $545 million, inclusive of applicable taxes, during the nine months ended September 30, 2025, under the Repurchase Authorizations. As of September 30, 2025, 14.6 million shares remain available for repurchase under the Repurchase Authorizations.

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