AMTB

SEC source: 0002100284-26-000006 · wk-form4_1771544383.xml · nonDerivative · entry 2

Rodriguez Adrian · CIK 0002100284 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,150

F2 · shares: 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.

SEC source: 0002100284-26-000006 · wk-form4_1771544383.xml · nonDerivative · entry 1

Rodriguez Adrian · CIK 0002100284 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,390

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

SEC source: 0002099007-26-000003 · wk-form4_1771544356.xml · derivative · entry 2

Cragg Lee Ann · CIK 0002099007 · SEVP, Chief Credit Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,071

Underlying: Class A Common Stock · 6,071 shares

Expires not disclosed

F3 · derivative.exercise_price: Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: PSUs awarded to Ms. Cragg, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Ms. Cragg may earn.

F4 · derivative.expiration_date: PSUs awarded to Ms. Cragg, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Ms. Cragg may earn.

SEC source: 0002099007-26-000003 · wk-form4_1771544356.xml · derivative · entry 1

Cragg Lee Ann · CIK 0002099007 · SEVP, Chief Credit Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,071

Underlying: Class A Common Stock · 6,071 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · derivative.exercise_date: On February 17, 2026, Ms. Cragg was awarded 6,071 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 Ms. Cragg remains in the continuous service of the Company or a subsidiary through each such date.

F2 · derivative.expiration_date: On February 17, 2026, Ms. Cragg was awarded 6,071 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 Ms. Cragg remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0002098589-26-000003 · wk-form4_1771544329.xml · derivative · entry 2

Nursey Michael E. · CIK 0002098589 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,939

Underlying: Class A Common Stock · 5,939 shares

Expires not disclosed

F3 · derivative.exercise_price: Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: PSUs awarded to Mr. Nursey, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mr. Nursey may earn.

F4 · derivative.expiration_date: PSUs awarded to Mr. Nursey, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mr. Nursey may earn.

SEC source: 0002098589-26-000003 · wk-form4_1771544329.xml · derivative · entry 1

Nursey Michael E. · CIK 0002098589 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,939

Underlying: Class A Common Stock · 5,939 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · derivative.exercise_date: On February 17, 2026, Mr. Nursey was awarded 5,939 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. Nursey remains in the continuous service of the Company or a subsidiary through each such date.

F2 · derivative.expiration_date: On February 17, 2026, Mr. Nursey was awarded 5,939 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. Nursey remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · derivative · entry 6

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,183

Underlying: Class A Common Stock · 6,183 shares

Expires not disclosed

F7 · derivative.exercise_price: Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

F8 · derivative.exercise_date: PSUs awarded to Mr. Capriles, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mr. Capriles may earn.

F8 · derivative.expiration_date: PSUs awarded to Mr. Capriles, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mr. Capriles may earn.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · derivative · entry 5

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,183

Underlying: Class A Common Stock · 6,183 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F6 · derivative.exercise_date: On February 17, 2026, Mr. Capriles was awarded 6,183 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date.

F6 · derivative.expiration_date: On February 17, 2026, Mr. Capriles was awarded 6,183 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · derivative · entry 4

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,083

Underlying: Class A Common Stock · 2,083 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F5 · derivative.exercise_date: On February 16, 2024, Mr. Capriles was awarded 6,249 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F5 · derivative.expiration_date: On February 16, 2024, Mr. Capriles was awarded 6,249 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · derivative · entry 3

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,573 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: On February 16, 2023, Mr. Capriles was awarded 4,718 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F4 · derivative.expiration_date: On February 16, 2023, Mr. Capriles was awarded 4,718 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. Capriles remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · nonDerivative · entry 2

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,797.79

F3 · shares: 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.

SEC source: 0001746225-26-000003 · wk-form4_1771544281.xml · nonDerivative · entry 1

Capriles Alberto · CIK 0001746225 · SEVP Chief Risk Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,820.79

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · balance_after: Includes 436.21 and 443.29 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 30, 2025 and November 28, 2025, respectively.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · derivative · entry 6

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,269

Underlying: Class A Common Stock · 6,269 shares

Expires not disclosed

F7 · derivative.exercise_price: Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

F8 · derivative.exercise_date: PSUs awarded to Mrs. Sanchez, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mrs. Sanchez may earn.

F8 · derivative.expiration_date: PSUs awarded to Mrs. Sanchez, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Mrs. Sanchez may earn.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · derivative · entry 5

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,269

Underlying: Class A Common Stock · 6,269 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F6 · derivative.exercise_date: On February 17, 2026, Mrs. Sanchez was awarded 6,269 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date.

F6 · derivative.expiration_date: On February 17, 2026, Mrs. Sanchez was awarded 6,269 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · derivative · entry 4

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,699

Underlying: Class A Common Stock · 1,699 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F5 · derivative.exercise_date: On February 16, 2024, Mrs. Sanchez was awarded 5,097 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F5 · derivative.expiration_date: On February 16, 2024, Mrs. Sanchez was awarded 5,097 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · derivative · entry 3

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,229 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: On February 16, 2023, Mrs. Sanchez was awarded 3,686 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F4 · derivative.expiration_date: On February 16, 2023, Mrs. Sanchez was awarded 3,686 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 Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · nonDerivative · entry 2

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,691.61

F3 · shares: 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.

SEC source: 0001963089-26-000005 · wk-form4_1771544246.xml · nonDerivative · entry 1

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,493.61

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · balance_after: Includes 264.46 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on November 28, 2025.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · derivative · entry 6

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,249

Underlying: Class A Common Stock · 8,249 shares

Expires not disclosed

F8 · derivative.exercise_price: Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

F9 · derivative.exercise_date: PSUs awarded to Ms. Calderon, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Ms. Calderon may earn.

F9 · derivative.expiration_date: PSUs awarded to Ms. Calderon, each representing the right to receive, following vesting, one share of Class A Common Stock. The actual number of PSUs earned shall be based on the achievement of the Relative Adjusted Return on Average Tangible Common Equity at a Threshold, Target or Maximum level set by the Compensation and Human Capital Committee (the "Committee") further modified by the achievement of specified Threshold, Target or Maximum levels set by the Committee of Relative Total Shareholder Return for a 3-year period beginning January 1, 2026 and ending on December 31, 2028, and in general can range from 40% to 180% of the PSUs. The number reported reflects the target number of PSUs Ms. Calderon may earn.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · derivative · entry 5

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,249

Underlying: Class A Common Stock · 8,249 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F7 · derivative.exercise_date: On February 17, 2026, Ms. Calderon was awarded 8,249 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date.

F7 · derivative.expiration_date: On February 17, 2026, Ms. Calderon was awarded 8,249 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · derivative · entry 4

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,223

Underlying: Class A Common Stock · 2,223 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F6 · derivative.exercise_date: On February 16, 2024, Ms. Calderon was awarded 6,669 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F6 · derivative.expiration_date: On February 16, 2024, Ms. Calderon was awarded 6,669 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · derivative · entry 3

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,102

Underlying: Class A Common Stock · 834 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: On February 16, 2023, Ms. Calderon 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F4 · derivative.expiration_date: On February 16, 2023, Ms. Calderon 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 Ms. Calderon remains in the continuous service of the Company or a subsidiary through each such date. Since the anniversary of the date of grant was on Monday, February 16, 2026, a federal holiday, the vesting occurred on Tuesday, February 17, 2026, the next business day.

F5 · balance_after: Balance reflects unvested RSUs awarded to Ms. Calderon on June 1, 2023.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · nonDerivative · entry 2

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,347.85

F3 · shares: 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.

SEC source: 0001979297-26-000003 · wk-form4_1771544222.xml · nonDerivative · entry 1

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,092.85

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · balance_after: Includes 305.35 and 310.3 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 30, 2025 and November 28, 2025, respectively.

SEC source: 0001806810-26-000004 · wk-form4_1769810976.xml · nonDerivative · entry 1

Iafigliola Carlos · CIK 0001806810 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,963.61

F1 · price: The shares were purchased in multiple transactions on January 30, 2026 at actual sales prices ranging from $21.69 to $21.85 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.

SEC source: 0001596132-26-000003 · wk-form4_1769640743.xml · nonDerivative · entry 1

Almeida Odilon · CIK 0001596132 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,316

F1 · price: The shares were purchased in multiple transactions on January 27, 2026 at actual sales prices ranging from $20.57 to $21.00 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.

SEC source: 0002100284-26-000003 · wk-form4_1768430176.xml · nonDerivative · entry 1

Rodriguez Adrian · CIK 0002100284 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,390

F1 · shares: Reflects the number of shares of Class A Common Stock that were surrendered in order to satisfy the reporting person's tax withholding obligation upon the vesting of the restricted stock.

SEC source: 0001746256-25-000009 · wk-form4_1766194142.xml · nonDerivative · entry 5

Wilson Millar · CIK 0001746256 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Custodial Account for Grandchild 4

Disclosed balance after: 2,345

F2 · kind: Bona fide gift to a custodial account for which reporting person is the custodian. The reporting person disclaims any pecuniary interest in the accounts' assets or the gifted shares.

F3 · ownership.direct: These shares are held in an account for one of the reporting person's minor grandchildren and the reporting person is the custodian of the account. The reporting person disclaims ownership of the shares held in the custodial account, and this report is not an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

SEC source: 0001746256-25-000009 · wk-form4_1766194142.xml · nonDerivative · entry 4

Wilson Millar · CIK 0001746256 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Custodial Account for Grandchild 3

Disclosed balance after: 2,345

F2 · kind: Bona fide gift to a custodial account for which reporting person is the custodian. The reporting person disclaims any pecuniary interest in the accounts' assets or the gifted shares.

F3 · ownership.direct: These shares are held in an account for one of the reporting person's minor grandchildren and the reporting person is the custodian of the account. The reporting person disclaims ownership of the shares held in the custodial account, and this report is not an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

SEC source: 0001746256-25-000009 · wk-form4_1766194142.xml · nonDerivative · entry 3

Wilson Millar · CIK 0001746256 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Custodial Account for Grandchild 2

Disclosed balance after: 2,345

F2 · kind: Bona fide gift to a custodial account for which reporting person is the custodian. The reporting person disclaims any pecuniary interest in the accounts' assets or the gifted shares.

F3 · ownership.direct: These shares are held in an account for one of the reporting person's minor grandchildren and the reporting person is the custodian of the account. The reporting person disclaims ownership of the shares held in the custodial account, and this report is not an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

SEC source: 0001746256-25-000009 · wk-form4_1766194142.xml · nonDerivative · entry 2

Wilson Millar · CIK 0001746256 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Custodial Account for Grandchild 1

Disclosed balance after: 2,345

F2 · kind: Bona fide gift to a custodial account for which reporting person is the custodian. The reporting person disclaims any pecuniary interest in the accounts' assets or the gifted shares.

F3 · ownership.direct: These shares are held in an account for one of the reporting person's minor grandchildren and the reporting person is the custodian of the account. The reporting person disclaims ownership of the shares held in the custodial account, and this report is not an admission that the reporting person is the beneficial owner of these shares for purposes of Section 16 or for any other purpose.

SEC source: 0001746256-25-000009 · wk-form4_1766194142.xml · nonDerivative · entry 1

Wilson Millar · CIK 0001746256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,249

F1 · kind: Bona fide gift to four custodial accounts for which reporting person is the custodian. The reporting person disclaims any pecuniary interest in the accounts' assets or the gifted shares.

SEC source: 0002041148-25-000005 · wk-form4_1765838220.xml · derivative · entry 1

Parra Pedro · CIK 0002041148 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Class A Common Stock · 2,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · derivative.exercise_date: On December 1, 2025, Mr. Parra was awarded 2,000 RSUs in connection with his promotion as Senior Executive Vice-President and Chief International Banking Officer. 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. Parra remains in the continuous service of the Company or a subsidiary through each such date.

F2 · derivative.expiration_date: On December 1, 2025, Mr. Parra was awarded 2,000 RSUs in connection with his promotion as Senior Executive Vice-President and Chief International Banking Officer. 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. Parra remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0002045314-25-000005 · wk-form4_1763675412.xml · derivative · entry 3

Smith Braden · CIK 0002045314 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Class A Common Stock · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: On November 18, 2024, Mr. Smith was awarded 10,000 RSUs. Each RSU represents the right to receive, following vesting, one share of Class A common stock. Twenty percent (20%) of the restricted stock units 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. Smith remains in the continuous service of the Company or a subsidiary through each such date.

F4 · derivative.expiration_date: On November 18, 2024, Mr. Smith was awarded 10,000 RSUs. Each RSU represents the right to receive, following vesting, one share of Class A common stock. Twenty percent (20%) of the restricted stock units 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. Smith remains in the continuous service of the Company or a subsidiary through each such date.

SEC source: 0002045314-25-000005 · wk-form4_1763675412.xml · nonDerivative · entry 2

Smith Braden · CIK 0002045314 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,085.424

F3 · shares: 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.

SEC source: 0002045314-25-000005 · wk-form4_1763675412.xml · nonDerivative · entry 1

Smith Braden · CIK 0002045314 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,872.424

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F2 · balance_after: Includes 872.424 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 30, 2025.

SEC source: 0001973970-25-000008 · wk-form4_1755205168.xml · nonDerivative · entry 1

Esterripa Juan · CIK 0001973970 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,133.5

F1 · balance_after: Includes 872.42 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 30, 2025.

SEC source: 0001232430-25-000008 · wk-form4_1753740458.xml · nonDerivative · entry 1

KOPNISKY JACK L · CIK 0001232430 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

SEC source: 0001963089-25-000005 · wk-form4_1750196062.xml · nonDerivative · entry 1

Sanchez Mariola · CIK 0001963089 · See remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,301.15

F1 · date: On June 15, 2022, Mrs. Sanchez was awarded 1,812 shares of Class A Common Restricted Stock ("RSA") in connection with her appointment as Chief People Officer. The RSAs vest in substantially equal installments on each of the first three anniversaries of the date of grant, provided that Mrs. Sanchez remains in the continuous service of the Company or a subsidiary through each such date. Since the third anniversary of the date of grant was on Sunday, June 15, 2025, the vesting occurred on Monday, June 16, 2025, the next business day.

F2 · shares: This number 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 restricted stock.

F3 · balance_after: Includes 811.35 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on May 30, 2025.

SEC source: 0001979297-25-000005 · wk-form4_1748989485.xml · derivative · entry 4

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,936

Underlying: Class A Common Stock · 2,102 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F4 · derivative.exercise_date: 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. Since the second anniversary of the date of grant was on Sunday, June 1, 2025, the vesting ocurred on Monday, June 2, 2025, the next business day.

F4 · derivative.expiration_date: 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. Since the second anniversary of the date of grant was on Sunday, June 1, 2025, the vesting ocurred on Monday, June 2, 2025, the next business day.

F5 · balance_after: Includes 834 unvested RSUs awarded to Ms. Calderon on February 16, 2023.

SEC source: 0001979297-25-000005 · wk-form4_1748989485.xml · derivative · entry 3

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,869

Underlying: Class A Common Stock · 1,868 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F3 · derivative.exercise_date: 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. Since the second anniversary of the date of grant was on Sunday, June 1, 2025, the vesting ocurred on Monday, June 2, 2025, the next business day.

F3 · derivative.expiration_date: 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. Since the second anniversary of the date of grant was on Sunday, June 1, 2025, the vesting ocurred on Monday, June 2, 2025, the next business day.

SEC source: 0001979297-25-000005 · wk-form4_1748989485.xml · nonDerivative · entry 2

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,420.2

F2 · shares: 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.

SEC source: 0001979297-25-000005 · wk-form4_1748989485.xml · nonDerivative · entry 1

Calderon Sharymar · CIK 0001979297 · SEVP - Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,387.2

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

SEC source: 0001839391-25-000005 · wk-form4_1747170102.xml · derivative · entry 3

Fleitas Armando · CIK 0001839391 · EVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 834

Underlying: Class A Common Stock · 833 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F3 · derivative.exercise_date: 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 RSUs vest 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.

F3 · derivative.expiration_date: 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 RSUs vest 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.

SEC source: 0001839391-25-000005 · wk-form4_1747170102.xml · nonDerivative · entry 2

Fleitas Armando · CIK 0001839391 · EVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,242.85

F2 · shares: 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.

SEC source: 0001839391-25-000005 · wk-form4_1747170102.xml · nonDerivative · entry 1

Fleitas Armando · CIK 0001839391 · EVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,445.85

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

SEC source: 0001957679-25-000004 · wk-form4_1746742407.xml · derivative · entry 3

Knight Erin D. · CIK 0001957679 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,854 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F3 · derivative.exercise_date: On May 8, 2024, the reporting person was granted 2,854 RSUs vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On May 8, 2024, the reporting person was granted 2,854 RSUs vesting on the first anniversary of the grant date.

SEC source: 0001957679-25-000004 · wk-form4_1746742407.xml · nonDerivative · entry 1

Knight Erin D. · CIK 0001957679 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,246

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

SEC source: 0001746672-25-000004 · wk-form4_1746742558.xml · derivative · entry 3

Dana Pamella J · CIK 0001746672 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,854 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.

F3 · derivative.exercise_date: On May 8, 2024, the reporting person was granted 2,854 RSUs vesting on the first anniversary of the grant date.

F3 · derivative.expiration_date: On May 8, 2024, the reporting person was granted 2,854 RSUs vesting on the first anniversary of the grant date.

SEC source: 0001746672-25-000004 · wk-form4_1746742558.xml · nonDerivative · entry 1

Dana Pamella J · CIK 0001746672 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,763

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") is the economic equivalent of one share of Class A Common Stock.