Blackstone Inc. — Director's Dealing 2010

Mar 5, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Blackstone Group L.P. (BX)
CIK: 0001393818
Period of Report: 2010-03-03

Reporting Person: HILL J TOMILSON (Director, Vice Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-03	Common units representing limited partnership interests	C	674052	—	Acquired	1686105	Direct
2010-03-03	Common units representing limited partnership interests	C	75948	—	Acquired	75948	Indirect
2010-03-03	Common units representing limited partnership interests	S	779561	$14.36	Disposed	906544	Direct
2010-03-03	Common units representing limited partnership interests	S	69184	$14.36	Disposed	6764	Indirect
2010-03-04	Common units representing limited partnership interests	S	76223	$14.23	Disposed	830321	Direct
2010-03-04	Common units representing limited partnership interests	S	6764	$14.23	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-03	Blackstone Holdings partnership units	$	G	36618	Disposed		Common units representing limited partnership interests (36618)	Direct
2010-03-03	Blackstone Holdings partnership units	$	C	674052	Disposed		Common units representing limited partnership interests (674052)	Direct
2010-03-03	Blackstone Holdings partnership units	$	C	75948	Disposed		Common units representing limited partnership interests (75948)	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Blackstone Holdings partnership units	$		Common units representing limited partnership interests (1500000)	1500000	Indirect

Footnotes

F1: 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, 2010 other than pursuant to transactions or programs approved by Blackstone.

F2: The Reporting Person donated 36,618 Blackstone Holdings partnership units to a charitable foundation.

F3: Pursuant to an exchange agreement, the Reporting Person exchanged 674,052 Blackstone Holdings partnership units for an equal number of common units of The Blackstone Group L.P. and thereafter sold such 674,052 common units plus an additional 181,732 common units he previously acquired over two consecutive trading days.

F4: Pursuant to an exchange agreement, a trust, for which the Reporting Person is trustee with investment power, exchanged 75,948 Blackstone Holdings partnership units for an equal number of common units of The Blackstone Group L.P. and thereafter sold such 75,948 common units over two consecutive trading days.

F5: These Blackstone Holdings partnership units are held in trusts, for the benefit of the Reporting Person's children, of which the Reporting Person is a trustee with investment power. The Reporting Person disclaims beneficial ownership of the Blackstone Holdings partnership units held in these trusts.

F6: Such Blackstone Holdings partnership units are held in a Grantor Retained Annuity Trust, for which the spouse of the Reporting Person is the investment trustee.