$MAT (MATTEL INC /DE/) — 8-K: Mattel Appoints Peter Griffith as CFO and Board Director, Effective October 20, 2026

Peter Griffith, most recently Executive Vice President and CFO of Amgen, becomes Mattel's Chief Financial Officer effective October 20, 2026, and joins the board of directors. He succeeds Paul Ruh, who will serve in an advisory role through the end of the year to support the transition. Griffith reports to Chairman and CEO Roger Lynch. At Amgen, Griffith helped guide the company through significant acquisitions and strategic investments; he previously spent more than two decades as a partner at EY, where as Global Managing Partner, Operations and Finance he oversaw Finance and Accounting, Corporate Development, Tax, and Treasury during a period in which EY's annual revenue grew by more than 25% to over $27 billion.

Peter Griffith, most recently Executive Vice President and CFO of Amgen, becomes Mattel's Chief Financial Officer effective October 20, 2026, and joins the board of directors. He succeeds Paul Ruh, wh