Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Carlyle Holdings I GP Inc.
  2. Issuer Name and Ticker or Trading Symbol
BankUnited, Inc. [BKU]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE. NW, SUITE 220S
3. Date of Earliest Transaction (Month/Day/Year)
03/13/2013
(Street)

WASHINGTON, DC 20004
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/13/2013   S   4,810,000 D $ 24.745 8,911,131 I See footnotes (1) (2) (3) (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Carlyle Holdings I GP Inc.
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
Carlyle Holdings I GP Sub L.L.C.
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
Carlyle Holdings I L.P.
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
TC Group, LLC
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
TC Group Sub L.P.
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
TC Group CSP II, LLC
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
CSP II General Partner, LP
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
Carlyle Strategic Partners II LP
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    
CSP II COINVESTMENT, L.P.
C/O THE CARLYLE GROUP
1001 PENNSYLVANIA AVE. NW, SUITE 220S
WASHINGTON, DC 20004
    X    

Signatures

 CARLYLE HOLDINGS I GP INC. By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 CARLYLE HOLDINGS I GP SUB L.L.C. By: Carlyle Holdings I GP Inc., its managing member By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 CARLYLE HOLDINGS I L.P. By: Carlyle Holdings I GP Sub L.L.C., its general partner By: Carlyle Holdings I GP Inc., its managing member By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 TC GROUP, L.L.C. By: Carlyle Holdings I L.P., its managing member By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 TC GROUP SUB L.P. By: TC Group, L.L.C., its general partner By: Carlyle Holdings I L.P., its managing member By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 TC GROUP CSP II, L.L.C. By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 CSP II GENERAL PARTNER, L.P. By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 CARLYLE STRATEGIC PARTNERS II, L.P. By: CSP II General Partner, L.P., its general partner By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

 CSP II COINVESTMENT, L.P. By: CSP II General Partner, L.P., its general partner By: /s/ R. Rainey Hoffman, attorney-in-fact   03/15/2013
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Consists of 3,996,023 shares of common stock held by Carlyle Financial Services BU, L.P., 888,211 shares of common stock held by Carlyle Strategic Partners II, L.P., 30,874 shares of common stock held by CSP II Coinvestment, L.P., 3,760,985 shares of common stock held by Carlyle Partners V, L.P., 151,048 shares of common stock held by CP V Coinvestment A, L.P., 8,321 shares of common stock held by CP V Coinvestment B, L.P. and 75,669 shares of common stock held of record by Carlyle Partners V-A, L.P.
(2) Carlyle Group Management L.L.C. is the general partner of The Carlyle Group L.P., which is a publicly traded entity listed on NASDAQ. The Carlyle Group L.P. is the managing member of Carlyle Holdings II GP L.L.C., which is the general partner of Carlyle Holdings II L.P., which is the general partner of TC Group Cayman Investment Holdings, L.P., which is the general partner of TC Group Cayman Investment Holdings Sub L.P., which is the managing member of TC Group V, L.L.C., which is the general partner of TC Group V, L.P., which is the general partner of each of Carlyle Partners V, L.P., CP V Coinvestment A, L.P., CP V Coinvestment B, L.P. and Carlyle Partners V-A, L.P.
(3) TC Group Cayman Investment Holdings Sub L.P. is also the sole shareholder of Carlyle Financial Services, Ltd., which is the general partner of TCG Financial Services, L.P., which is the general partner of Carlyle Financial Services BU, L.P. Accordingly, Carlyle Group Management L.L.C., The Carlyle Group L.P., Carlyle Holdings II GP L.L.C., Carlyle Holdings II L.P., TC Group Cayman Investment Holdings, L.P., TC Group Cayman Investment Holdings Sub L.P., TC Group V, L.L.C., TC Group V, L.P., Carlyle Financial Services, Ltd. and TCG Financial Services, L.P. may be deemed to share beneficial ownership of the shares of Common Stock owned of record by Carlyle Partners V, L.P., CP V Coinvestment A, L.P., CP V Coinvestment B, L.P., Carlyle Partners V-A, L.P. and Carlyle Financial Services BU.
(4) The Carlyle Group L.P. is also the sole shareholder of Carlyle Holdings I GP Inc., which is the managing member of Carlyle Holdings I GP Sub L.L.C., which is the general partner of Carlyle Holdings I L.P., which is the managing member of TC Group, L.L.C., which is the general partner of TC Group Sub L.P., which is the managing member of TC Group CSP II, L.L.C., which is the general partner of CSP II General Partner, L.P., which is the general partner of each of Carlyle Strategic Partners II, L.P. and CSP II Coinvestment, L.P. Accordingly, Carlyle Group Management L.L.C. and each of the entities mentioned in this footnote may be deemed to share beneficial ownership of the shares of Common Stock owned of record by Carlyle Strategic Partners II, L.P. and CSP II Coinvestment, L.P.
 
Remarks:
Due to the limitations of the electronic filing system, each of (i) Carlyle Group Management L.L.C., The Carlyle Group L.P., Carlyle
Holdings II GP L.L.C., Carlyle Holdings II L.P., TC Group Cayman Investment Holdings, L.P. and TC Group Cayman Investment Holdings
Sub L.P., and (ii) TC Group V, L.L.C., TC Group V, L.P., Carlyle Partners V, L.P., CP V Coinvestment A, L.P., CP V Coinvestment B, L.P.,
Carlyle Partners V-A, L.P., Carlyle Financial Services, Ltd., TCG Financial Services, L.P. and Carlyle Financial Services BU, L.P.
are filing a separate Form 4.

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

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.