Announcements

Director Michelle T. Collins of Owens Corning filed a statement of changes in beneficial ownership on November 9, 2026, reporting the acquisition of 479 shares of common stock on November 6, 2026, as the share portion of her quarterly director retainer and fees.

Director Erin M. Stone filed a Form 4 with the SEC on November 9, 2026, disclosing a purchase of 500 shares of Security Midwest Bancorp, Inc. common stock on November 6, 2026.

Director David Sidransky filed a Form 4 with the SEC on November 9, 2026, disclosing the acquisition of options to purchase 31,216 shares of Champions Oncology, Inc. common stock at an exercise price of $4.76 per share, with a transaction date of November 5, …

Jose Mendez-Andino, EVP and Chief Innovation Officer at Owens Corning, filed a Form 4 on November 9, 2026, reporting the acquisition of 94.109 shares of common stock on November 5, 2026, through the accrual of dividend equivalents on deferred shares.

Director Adrienne Elsner filed a Form 4 with the SEC on November 9, 2026, disclosing two acquisitions of Owens Corning common stock on November 5 and November 6, 2026.

Director Suzanne P. Nimocks filed a Form 4 with the SEC on November 9, 2026, disclosing two acquisitions of Owens Corning common stock on November 5 and November 6, 2026.

Director Alfred E. Festa filed a Form 4 with the SEC on November 9, 2026, disclosing two acquisitions of Owens Corning common stock on November 5 and November 6, 2026.