# EDGAR Filing Document

**Accession Number:** 0001591838
**File Stem:** 0001504008-25-000053
**Filing Date:** 2025-11
**Character Count:** 8218
**Document Hash:** ebb3e85f1fdfc096e5a877185a05cc5c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001504008-25-000053.hdr.sgml**: 20251117

**ACCESSION NUMBER**: 0001504008-25-000053

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251110

**FILED AS OF DATE**: 20251117

**DATE AS OF CHANGE**: 20251117

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Mackey James G.
- **CENTRAL INDEX KEY:** 0001591838

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35039
- **FILM NUMBER:** 251491897

**MAIL ADDRESS:**
- **STREET 1:** C/O BANKUNITED, INC
- **STREET 2:** 14817 OAK LANE
- **CITY:** MIAMI LAKES
- **STATE:** FL
- **ZIP:** 33016
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BankUnited, Inc.
- **CENTRAL INDEX KEY:** 0001504008
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 270162450
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 14817 OAK LANE
- **CITY:** MIAMI LAKES
- **STATE:** FL
- **ZIP:** 33016
- **BUSINESS PHONE:** (305) 569-2000

**MAIL ADDRESS:**
- **STREET 1:** 14817 OAK LANE
- **CITY:** MIAMI LAKES
- **STATE:** FL
- **ZIP:** 33016

## Ex-24

```

LIMITED POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and
appoints each of Rajinder Singh, Leslie Lunak and Jacqueline Bravo, each
an officer of BankUnited, Inc. and BankUnited, N.A.(hereinafter, the Company)
each of them individually and with full power of substitution, the
undersigned's true and lawful attorney-in-fact to:

1. prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the U.S. Securities and Exchange Commission (the SEC) a Form
ID, including amendments thereto, and any other documents necessary or
appropriate to obtain codes and passwords enabling the undersigned to make
electronic filings with the SEC of reports required by Section 16(a) of the
Securities Exchange Act of 1934 or any rule or regulation of the SEC;

2. execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of BankUnited, Inc. (the Company), Forms 3, 4
and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder;

3. do and perform any and all acts for and on behalf of the undersigned which
 may be necessary or desirable to complete and execute any such Form 3, 4 or 5,
 complete and execute any amendment or amendments thereto, and timely file such
 form with the SEC and any stock exchange or similar authority; and

4. take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in
such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

By execution of this Limited Power of Attorney, the undersigned agrees and
confirms that the actions provided for herein shall be deemed effective as of
October 27, 2025 (the Effective Date) and shall remain in full force and
effect until the undersigned is no longer required to file Forms 3, 4 and 5
with respect to the undersigned's holdings of and transactions in securities
issued by the Company, unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney
to be executed as of this day of October 27, 2025.

Signed by:

/s/ James G. Mackey
Name: James G. Mackey

```

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Mackey James G.<br><sub>(Last) (First) (Middle)</sub><br>C/O BANKUNITED, INC.<br>14817 OAK LANE<br><sub>(Street)</sub><br>MIAMI LAKES, FL 33016<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>BankUnited, Inc. [ BKU ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-11-10 | **4. 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>_Chief Financial Officer_ | **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 Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Restricted Share Unit | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock, par value $0.01 per share | 26810 | <sup>(2)</sup> | D |  |

---

### Footnotes:

(1) Granted pursuant to the terms of the BankUnited, Inc. 2023 Omnibus Equity Incentive Plan. 8,937 units will vest on August 20, 2026, 8,936 units will vest on August 20, 2027, and 8,937 will vest on August 20, 2028.

(2) Each restricted share unit represents the right to receive, at settlement, one share of common stock or cash in an amount equal to the fair market value of one share of common stock.

**Remarks:**
Exhibit List 24: Power of Attorney

**Signature:** /s/ Jacqueline Bravo, as Attorney-in-Fact  
**Date:** 2025-11-17

### 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.**