Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Blackstone Family Investment Partnership V L.P.
2. Date of Event Requiring Statement (Month/Day/Year)
01/27/2011
3. Issuer Name and Ticker or Trading Symbol
BankUnited, Inc. [BKU]
(Last)
(First)
(Middle)
C/O THE BLACKSTONE GROUP, 345 PARK AVENUE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10154
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 15,545,269
I
See footnote (1) (5) (6)
Common Stock 4,860,977
I
See footnote (2) (5) (6)
Common Stock 27,160
I
See footnote (3) (5) (6)
Common Stock 15,783
I
See footnote (4) (5) (6)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Blackstone Family Investment Partnership V L.P.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
Blackstone Participation Partnership V L.P.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
BCP V Side-by-Side GP L.L.C.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
Blackstone Holdings III L.P.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
Blackstone Group L.P.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
Blackstone Group Management L.L.C.
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    
SCHWARZMAN STEPHEN A
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
    X    

Signatures

Blackstone Family Investment Partnership V L.P. By: /s/ Robert L. Friedman Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

Blackstone Participation Partnership V L.P. By: /s/ Robert L. Friedman Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

BCP V Side-By-Side GP L.L.C. By: /s/ Robert L. Friedman Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

Blackstone Holdings III L.P. By: /s/ Robert L. Friedman Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

The Blackstone Group L.P. By: /s/ Katherine Skero Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

Blackstone Group Management L.L.C. By: /s/ Katherine Skero Title: Authorized Person 01/27/2011
**Signature of Reporting Person Date

/s/ Stephen A. Schwarzman Stephen A. Schwarzman 01/27/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) These securities are held by Blackstone Capital Partners V L.P. ("BCP V").
(2) These securities are held by Blackstone Capital Partners V-AC L.P. ("BCP V-AC").
(3) These securities are held by Blackstone Family Investment Partnership V L.P. ("Family").
(4) These securities are held by Blackstone Participation Partnership V L.P. ("Participation").
(5) The general partner of BCP V and BCP V-AC is Blackstone Management Associates V L.L.C. BMA V L.L.C. is the sole member of Blackstone Management Associates V L.L.C. The general partner of Family and Participation is BCP V Side-By-Side GP L.L.C. Blackstone Holdings III L.P. is the managing member and owner of a majority in interest of BMA V L.L.C. and the sole member of BCP V Side-By-Side GP L.L.C. Blackstone Holdings III L.P. is indirectly controlled by The Blackstone Group L.P. The Blackstone Group L.P. is controlled by its general partner, Blackstone Group Management L.L.C., which is in turn controlled by its founder, Stephen A. Schwarzman.
(6) Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Persons are the beneficial owners of any securities reported herein.
 
Remarks:
Because no more than 10 reporting persons can file any one Form 3 through the Securities and Exchange Commission's EDGAR system, Blackstone Capital Partners V L.P., Blackstone Capital Partners V-AC L.P., Blackstone Management Associates V L.L.C. and BMA V L.L.C. have filed a separate Form 3.

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

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