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 *
SCHWARZMAN STEPHEN A
  2. Issuer Name and Ticker or Trading Symbol
Blackstone Group L.P. [BX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chairman and CEO
(Last)
(First)
(Middle)
C/O THE BLACKSTONE GROUP, 345 PARK AVENUE
3. Date of Earliest Transaction (Month/Day/Year)
02/22/2019
(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

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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 (1) (1) 02/22/2019   G(2)     221,495   (1)   (1) Common units representing limited partnership units 221,495 $ 0 3,178,116 (3) I See footnote (4)
Blackstone Holdings Partnership units (1) (1) 02/22/2019   G(2)   221,495     (1)   (1) Common units representing limited partnership units 221,495 $ 0 1,893,264 I See footnote (5)
Blackstone Holdings Partnership units (1) (1) 02/22/2019   S(6)     226,598   (1)   (1) Common units representing limited partnership units 226,598 $ 33.34 1,666,666 I See footnote (5)
Blackstone Holdings Partnership units (1) (1) 02/22/2019   P(6)   226,598     (1)   (1) Common units representing limited partnership units 226,598 $ 33.34 225,641,482 (3) D  
Blackstone Holdings Partnership units (1) (1)               (1)   (1) Common units representing limited partnership units 1,438,529   1,438,529 I See footnote (7)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SCHWARZMAN STEPHEN A
C/O THE BLACKSTONE GROUP
345 PARK AVENUE
NEW YORK, NY 10154
  X     Chairman and CEO  

Signatures

 Tabea Y. Hsi as Attorney-In-Fact   02/26/2019
**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) 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., Blackstone Holdings IV L.P. and Blackstone Holdings AI L.P. Subject to the minimum retained ownership requirements and transfer restrictions set forth in the partnership agreements of the Blackstone partnerships, the holder has the right, exercisable from time to time, to exchange each Blackstone Holdings 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, 2019 other than pursuant to transactions or programs approved by Blackstone.
(2) Such Blackstone Holdings partnership units were previously held in a number of Grantor Retained Annuity Trusts, for which the Reporting Person served as investment trustee and were transferred to a number of trusts, for which the beneficiaries are various descendants of the Reporting Person, and for which the Reporting Person is the investment trustee in accordance with the terms of the Grantor Retained Annuity Trusts.
(3) Reflects certain transfers made between a number of Grantor Retained Annuity Trusts and the Reporting Person during 2019. Such transfers were exempt from reporting pursuant to Rule 16a-13 under the Securities Exchange Act of 1934, as amended.
(4) Such Blackstone Holdings partnership units are held in a number of Grantor Retained Annuity Trusts, for which the Reporting Person serves as investment trustee.
(5) Such Blackstone Holdings partnership units are held in a number of trusts, for which the beneficiaries are various descendants of the Reporting Person, and for which the Reporting Person is the investment trustee.
(6) Reflects a transfer from a number of trusts for which the beneficiaries are various descendants of the Reporting Person, to the Reporting Person.
(7) Such Blackstone Holdings partnership units are held in a corporation in which the Reporting Person is a controlling shareholder.
 
Remarks:
The Reporting Person disclaims beneficial ownership of the securities reported on this form except to the extent of his pecuniary interest.

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