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 *
Moss Sylvia F
   2. Issuer Name and Ticker or Trading Symbol
Blackstone Group L.P. [BX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Managing Director-Admin
(Last)
(First)
(Middle)
C/O THE BLACKSTONE GROUP, 345 PARK AVENUE		 3. Date of Earliest Transaction (Month/Day/Year)
08/13/2009
(Street)

NEW YORK, NY 10154		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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 units representing limited partnership interests 08/13/2009   C   50,000 A $ 0 50,000 (1) D  
Common units representing limited partnership interests 08/13/2009   S   806 D $ 14.47 49,194 D  
Common units representing limited partnership interests 08/14/2009   S   806 D $ 14.06 48,388 D  
Common units representing limited partnership interests 08/17/2009   S   628 D $ 13.13 47,760 D  
Common units representing limited partnership interests 08/19/2009   S   651 D $ 13.34 47,109 D  
Common units representing limited partnership interests 08/19/2009   S   661 D $ 13.18 46,448 D  
Common units representing limited partnership interests 08/20/2009   S   1,047 D $ 13.41 45,401 D  
Common units representing limited partnership interests 08/21/2009   S   1,105 D $ 13.59 44,296 D  
Common units representing limited partnership interests 08/24/2009   S   849 D $ 13.45 43,447 D  
Common units representing limited partnership interests 08/25/2009   S   784 D $ 13 42,663 D  
Common units representing limited partnership interests 08/26/2009   S   794 D $ 13.02 41,869 D  
Common units representing limited partnership interests 08/27/2009   S   806 D $ 12.96 41,063 D  
Common units representing limited partnership interests 08/28/2009   S   806 D $ 13.03 40,257 D  
Common units representing limited partnership interests 08/31/2009   S   806 D $ 12.81 39,451 D  
Common units representing limited partnership interests 09/01/2009   S   331 D $ 12.75 39,120 D  
Common units representing limited partnership interests 09/08/2009   S   806 D $ 12.66 38,314 D  
Common units representing limited partnership interests 09/09/2009   S   966 D $ 13.03 37,348 D  
Common units representing limited partnership interests 09/10/2009   S   1,135 D $ 13.57 36,213 D  
Common units representing limited partnership interests 09/11/2009   S   849 D $ 13.64 35,364 D  
Common units representing limited partnership interests 09/14/2009   S   1,189 D $ 13.76 34,175 D  
Common units representing limited partnership interests 09/15/2009   S   1,274 D $ 13.95 32,901 D  
Common units representing limited partnership interests 09/16/2009   S   2,406 D $ 14.58 30,495 D  
Common units representing limited partnership interests 09/17/2009   S   2,830 D $ 15.01 27,665 D  
Common units representing limited partnership interests 09/21/2009   S   1,246 D $ 15.06 26,419 D  
Common units representing limited partnership interests 09/21/2009   S   907 D $ 14.5 25,512 D  
Common units representing limited partnership interests 09/22/2009   S   1,019 D $ 14.71 24,493 D  
Common units representing limited partnership interests 09/23/2009   S   937 D $ 14.73 23,556 D  
Common units representing limited partnership interests 09/25/2009   S   991 D $ 14.03 22,565 D  
Common units representing limited partnership interests 09/28/2009   S   651 D $ 13.91 21,914 D  
Common units representing limited partnership interests 09/28/2009   S   937 D $ 14.06 20,977 D  

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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
Blackstone Holdings Partnership units (2) 08/13/2009   C(1)     50,000   (2)   (2) Common units representing limited partnership interests 50,000 $ 0 875,405 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Moss Sylvia F
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154		       Senior Managing Director-Admin  

Signatures

 /s/ Robert L. Friedman as Attorney-In-Fact   02/11/2010
**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) Pursuant to an exchange agreement, the Reporting Person exchanged 50,000 Blackstone Holdings partnership units for an equal number of common units of The Blackstone Group L.P. and thereafter sold such common units pursuant to a sales plan that was effectuated on each of 45 consecutive trading days.
(2) A "Blackstone Holdings Partnership unit" collectively refers to one limited partner interest in each of Blackstone Holdings I L.P., Blackstone Holdings II L.P., Blackstone Holdings III L.P., and Blackstone Holdings IV L.P. Subject to the minimum retained ownership requirements and transfer restrictions set forth in the partnership agreements of the Blackstone partnerships, the Reporting Person has the right, exercisable from time to time, to exchange each Blackstone Holding partnership unit for one common unit of The Blackstone Group L.P. The Blackstone Holdings partnership units have no expiration date and may not be exchanged at any time prior to December 31, 2009 other than pursuant to transactions or programs approved by Blackstone.

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