Amerant Bancorp Inc.

In connection with Mr. Iafigliola's appointment as Interim Chief Executive Officer, the Boards appointed Mr. Iafigliola to the Boards effective on November 5, 2025 in compliance with the requirements of each of the Company's and the Bank’s Amended and Restated Bylaws, dated October 18, 2023 and April 19, 2023, respectively. Additionally, the Board appointed Odilon Almeida Jr., the Company’s current Lead Independent Director, as Board Chair effective on November 5, 2025. There are no arrangements or understandings between or among Mr. Iafigliola, Mr. Almeida Jr. and any other person pursuant to which Mr. Iafigliola was appointed as a director and Mr. Almeida Jr. was appointed Board Chair. Neither of Messrs. Iafigliola and Almeida Jr. have any direct or indirect material interest in any transaction or proposed transaction required to be reported under Item 404(a) of Regulation S-K.