AMTB · Amerant Bancorp Inc.

Each 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.

Each RSU is the economic equivalent of one share of Class A Common Stock.

On July 21, 2025, Ms. Cragg was awarded 1,008 restricted stock units ("RSUs"), each representing the right to receive, following vesting, one share of Class A Common Stock. Twenty percent (20%) of the restricted stock units vests on each of the first two anniversaries of the date of grant and the remaining sixty percent (60%) will vest on the third anniversary of the date of grant, provided that Ms. Cragg remains in the continuous service of the Company or a subsidiary through each such date.

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.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 17, 2024, Mr. Nursey was awarded 6,716 RSUs, each representing the right to receive, following vesting, one share of Class A Common Stock. Twenty percent (20%) of the restricted stock units vests on each of the first two anniversaries of the date of grant and the remaining sixty percent (60%) will vest on the third anniversary of the date of grant, provided that Mr. Nursey remains in the continuous service of the Company or a subsidiary through each such date.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 8, 2026, Mr. Fleitas was awarded 1,093 RSUs as a one-time special recognition award, each RSU represents the right to receive, following vesting, one share of Class A Common Stock. Twenty percent (20%) of the RSUs will vest on each of the first two anniversaries of the date of grant and the remaining sixty percent (60%) will vest on the third anniversary of the date of grant, provided that Mr. Fleitas remains in the continuous service of the Company or a subsidiary through each such date.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 2, 2026, the reporting person was granted 2,885 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the annual meeting of the shareholders of the Company to be held in 2027 or through the first anniversary of the date of grant. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 1, 2023, Ms. Calderon was awarded 6,306 RSUs under the 2023-2025 Long Term Incentive Plan. Each RSU represents 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Includes 194.23 shares of Class A Common Stock acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 29, 2026.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On June 1, 2023, Ms. Calderon was awarded 5,605 RSUs in connection with a sign-on grant related to Ms. Calderon's appointment as EVP, Chief Financial Officer. Each RSU represents the right to receive, following vesting, one share of Class A Common Stock. The RSUs vest in substantially equal installments on each of the first three anniversaries of the date of grant, provided that Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date.

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.

Each restricted stock unit (RSU) is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit (RSU) is the economic equivalent of one share of Class A Common Stock.

On May 9, 2023, Mr. Fleitas was awarded 2,500 RSUs in connection with his promotion to Executive Vice President. Each RSU represents 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. Since the anniversary of the grant date was on Saturday, May 9, 2026, a weekend, the vesting occurred on Monday, May 11, 2026, the next business day.

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.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

On May 7, 2025, the reporting person was granted 3,761 RSUs. Such RSU award will vest on the first anniversary of the date of the grant, provided that the reporting person remains in continuous service of the Company as a Director through the vesting date. Each RSU represents a right to receive one share of Class A Common Stock upon vesting.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

The shares were purchased in multiple transactions on April 27, 2026 at actual sales prices ranging from $22.75 to $22.81 per share. The price reported reflects the weighted average purchase price for the transactions. The reporting person undertakes to provide upon request by the SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

Represents a gift of shares made to the Irrevocable Florida Trust for GAMM (the "Trust") as part of an estate planning strategy. The reporting person is the beneficiary of the Trust and has sole voting and investment power over the 612,443 shares of Class A Common Stock.

Each 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.

Each RSU is the economic equivalent of one share of Class A Common Stock.

On March 3, 2025, Mr. Nursey was awarded 4,000 RSUs, each representing the right to receive, following vesting, one share of Class A Common Stock. Twenty percent (20%) of the restricted stock units vests on each of the first two anniversaries of the date of grant and the remaining sixty percent (60%) will vest on the third anniversary of the date of grant, provided that Mr. Nursey remains in the continuous service of the Company or a subsidiary through each such date.

Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

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.