# EDGAR Filing Document

**Accession Number:** 0001734342
**File Stem:** 0001963089-26-000005
**Filing Date:** 2026-2
**Character Count:** 9117
**Document Hash:** 7de726121a82a05bc84bb2cad4068af7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001963089-26-000005.hdr.sgml**: 20260219

**ACCESSION NUMBER**: 0001963089-26-000005

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260217

**FILED AS OF DATE**: 20260219

**DATE AS OF CHANGE**: 20260219

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Sanchez Mariola
- **CENTRAL INDEX KEY:** 0001963089

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38534
- **FILM NUMBER:** 26656024

**MAIL ADDRESS:**
- **STREET 1:** 220 ALHAMBRA CR.
- **CITY:** CORAL GABLES
- **STATE:** FL
- **ZIP:** 33134
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Amerant Bancorp Inc.
- **CENTRAL INDEX KEY:** 0001734342
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATIONAL COMMERCIAL BANKS [6021]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 650032379
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 220 ALHAMBRA CIRCLE
- **CITY:** CORAL GABLES
- **STATE:** FL
- **ZIP:** 33134
- **BUSINESS PHONE:** (305)460-4038

**MAIL ADDRESS:**
- **STREET 1:** 220 ALHAMBRA CIRCLE
- **CITY:** CORAL GABLES
- **STATE:** FL
- **ZIP:** 33134

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Mercantil Bank Holding Corp
- **DATE OF NAME CHANGE:** 20180312

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Sanchez Mariola<br><sub>(Last) (First) (Middle)</sub><br>220 ALHAMBRA CR.<br><sub>(Street)</sub><br>CORAL GABLES, FL 33134<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-02-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_See remarks_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Amerant Bancorp Inc. [ AMTB ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2026-02-17 |  | M |  | 2928 | A | 0<sup>(1)</sup> | 19493.61<sup>(2)</sup> | D |  |
| Class A Common Stock | 2026-02-17 |  | F |  | 802<sup>(3)</sup> | D | $22.73 | 18691.61 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units LTI 2023 | 0<sup>(1)</sup> | 2026-02-17 |  | M |  |  | 1229 | <sup>(4)</sup> | <sup>(4)</sup> | Class A Common Stock | 1229 | $0 | 0 | D |  |
| Restricted Stock Units LTI 2024 | 0<sup>(1)</sup> | 2026-02-17 |  | M |  |  | 1699 | <sup>(5)</sup> | <sup>(5)</sup> | Class A Common Stock | 1699 | $0 | 1699 | D |  |
| Restricted Stock Units LTI 2026 | 0<sup>(1)</sup> | 2026-02-17 |  | A |  | 6269 |  | <sup>(6)</sup> | <sup>(6)</sup> | Class A Common Stock | 6269 | $0 | 6269 | D |  |
| Performance Based Restricted Stock Units LTI 2026 | 0<sup>(7)</sup> | 2026-02-17 |  | A |  | 6269 |  | <sup>(8)</sup> | <sup>(8)</sup> | Class A Common Stock | 6269 | $0 | 6269 | D |  |

---

### Footnotes:

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

(2) Includes 264.46 shares acquired under the Amerant Bancorp Inc. Employee Stock Purchase Plan on November 28, 2025.

(3) 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.

(4) 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 equalinstallments 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.

(5) 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 equalinstallments 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.

(6) 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.

(7) Each performance-based restricted stock unit ("PSU") is the economic equivalent of one share of Class A Common Stock.

(8) 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.

**Signature:** /s/ Julio V. Pena, as Attorney-in-Fact for Mariola Sanchez  
**Date:** 2026-02-19

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**