X0306 4 2017-09-15 0 0001585689 Hilton Worldwide Holdings Inc. HLT 0001208590 GRAY JONATHAN C/O THE BLACKSTONE GROUP L.P. 345 PARK AVENUE NEW YORK NY 10154 1 0 0 0 Common Stock 2017-09-15 4 J 0 215276 A 249316 D Represents a distribution to the Reporting Person of shares of common stock of the issuer previously held directly by HLT Holdco III LLC and HLT A23 Holdco LLC, affiliates of Blackstone (as defined below) in relation to his indirect interests in such entities. Reflects an adjustment in connection with the 1-for-3 reverse stock split of the issuer's common stock effected on January 3, 2017. Mr. Gray, an employee of The Blackstone Group L.P. ("Blackstone"), is a member of the board of directors of the issuer. Certain affiliates of Blackstone have filed separate Section 16 reports reporting securities of the issuer that they may be deemed to beneficially own. Mr. Gray disclaims beneficial ownership of any securities of the issuer that may be deemed to be beneficially owned by affiliates of Blackstone. /s/ Jonathan D. Gray 2017-09-19