Director John David Williams Acquires Owens Corning Common Stock

This SEC Form 4 filing reports that John David Williams, a director of Owens Corning (ticker: OC), acquired 367.146 shares of the company's common stock on April 9, 2026. The transaction occurred at a price of $114.95 per share through the accrual of dividend equivalents on deferred stock units, as noted in footnote F1. Following this acquisition, Williams now holds a total of 53,789.573 shares directly. The filing was signed on April 13, 2026, by Katherine M. Serevitch as attorney-in-fact for Williams. This transaction represents a routine acquisition of shares by a company director through dividend reinvestment on previously granted deferred stock units, rather than a market purchase.