Millar Wilson - 07 May 2026 Form 4 Insider Report for Amerant Bancorp Inc. (AMTB)

Reporting relationship: Director
Issuer ticker: AMTB
Reported as of: 07 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 May 2026, 19:01:26 UTC
Prior SEC filing: 19 Dec 2025
Next SEC filing: 04 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Julio V. Pena as Attorney-in-Fact for Millar Wilson

Key filing fact

Millar Wilson filed Form 4 for Amerant Bancorp Inc. (AMTB) on 11 May 2026.

Key facts

This page summarizes Millar Wilson's Form 4 filing for Amerant Bancorp Inc. (AMTB).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 11 May 2026, 19:01.

Change

Previous filing in this sequence was filed on 19 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001746256 Primary reporting owner

Wilson Millar

Relationship: Director
Address: C/O AMERANT BANCORP INC., 220 ALHAMBRA CIRCLE, CORAL GABLES
Signature: /s/ Julio V. Pena as Attorney-in-Fact for Millar Wilson
Signature date: 11 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMTB transaction

Class A Common Stock

Options Exercise

Transaction value
Shares: +3,761
Change %: +3.4%
Price: $0.000000^*
Shares after: 116,010
Date: 07 May 2026
Ownership: Direct
Footnotes: F1

AMTB holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,345
Date: 07 May 2026
Ownership: Custodial Account for Grandchild 1
Footnotes: F2

AMTB holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,345
Date: 07 May 2026
Ownership: Custodial Account for Grandchild 3
Footnotes: F2

AMTB holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,345
Date: 07 May 2026
Ownership: Custodial Account for Grandchild 2
Footnotes: F2

AMTB holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 2,345
Date: 07 May 2026
Ownership: Custodial Account for Grandchild 4
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMTB transaction Derivative

Restricted Stock Units 2025

Options Exercise

Transaction value
Shares: -3,761
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 07 May 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 3,761
Exercise price: $0.000000
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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

Footnote F2

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.

Footnote F3

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.