X0508 4 2026-02-18 0 0001734342 Amerant Bancorp Inc. AMTB 0001839391 Fleitas Armando 220 ALHAMBRA CIRCLE CORAL GABLES FL 33134 0 1 0 0 EVP, Chief Accounting Officer 0 Class A Common Stock 2026-02-18 4 M 0 833 0 A 9423.74 D Class A Common Stock 2026-02-18 4 F 0 203 22.38 D 9220.74 D Restricted Stock Units LTI 2025 0 2026-02-18 4 M 0 833 0 D Class A Common Stock 833 1667 D Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock. Reflects the shares of Class A Common Stock that were surrendered in order to satisfy the reporting person's tax withholding obligation upon the vesting of RSUs. On February 18, 2025, Mr. Fleitas was awarded 2,500 RSUs, each representing the right to receive, following vesting, one share of Class A Common Stock. The award vests in substantially equal installments on each of the first three anniversaries of the date of grant, provided that Mr. Fleitas remains in the continuous service of the Company or a subsidiary through each such date. /s/ Julio V. Pena, as Attorney-in-Fact for Armando Fleitas 2026-02-20