FLAGSTAR BANK, NATIONAL ASSOCIATION files DEFA14A

This filing supplements the Bank's proxy statement for the June 9, 2026 Annual Meeting of Shareholders, providing updates on executive leadership changes and compensation, as well as information on proxy solicitation costs. The Bank has implemented leadership updates effective May 18, 2026, including changes to the roles of Joseph M. Otting, Richard Raffetto, Lee Smith, Bao Nguyen, and Peter Sullivan, along with an amended employment agreement for Mr. Otting.