X0306 4 2016-07-01 0 0001393818 Blackstone Group L.P. BX 0001249319 HILL J TOMILSON C/O THE BLACKSTONE GROUP 345 PARK AVENUE, 15TH FLOOR NEW YORK NY 10154 1 1 0 0 Vice Chairman Blackstone Holdings partnership units 2016-07-01 4 A 0 54986 0.00 A Common units representing limited partner interests 54986 6204347 D Blackstone Holdings partnership units Common units representing limited partner interests 2683308 2683308 I See Footnote Blackstone Holdings partnership units Common units representing limited partner interests 5636348 5636348 I See Footnote A "Blackstone Holdings partnership" unit collectively refers to one limited partner interest in each of Blackstone Holdings I L.P., Blackstone Holdings AI 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 holder has the rights, 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, 2016 other than pursuant to transactions or programs approved by Blackstone. Granted under the 2007 Equity Incentive Plan, 20% of these deferred restricted Blackstone Holdings partnership units, or 10,997 units, will vest on July 1, 2019; an additional 30%, or 16,496 units, will vest on July 1, 2020; and the remaining 50%, or 27,493 units, will vest on July 1, 2021. As these deferred restricted Blackstone Holdings partnership units vest, the underlying Blackstone Holdings partnership units will be delivered to the Reporting Person, except that no more than 3/4 of the vested units will be delivered during the Reporting Person's service with Blackstone (with the remaining units to be delivered after the expiration of the Reporting Person's restrictive covenant period). Notwithstanding the foregoing, the units may be delivered earlier upon a change in control of Blackstone. Includes 374 Blackstone Holdings partnership units issued on October 1, 2015 as an anti-dilution adjustment in connection with the spin-off of PJT Partners Inc. by The Blackstone Group L.P. Such Blackstone Holdings partnership units are held by a limited liability company controlled by the Reporting Person. Such Blackstone Holdings partnership units are held in a trust, for the benefit of the Reporting Person's children, of which the spouse of the Reporting Person is the investment trustee. The Reporting Person disclaims beneficial ownership of the securities reported on this form except to the extent of his pecuniary interest. Tabea Y. Hsi as Attorney-In-Fact 2016-08-26