X0202 3 2008-06-03 0 0001195116 Arno Therapeutics, Inc LRRI.OB 0001296549 Belldegrun Arie C/O TWO RIVER GROUP HOLDINGS, LLC 689 5TH AVENUE, 12TH FLOOR NEW YORK NY 10022 1 0 0 0 Common Stock 24922 D Common Stock 61916 I By Trust Stock Options (right to buy) 2.42 2018-03-31 Common Stock 199377 D Held by a trust of which the Reporting Person is a beneficiary. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these shares for purposes of Section 16 or any other purpose. Right to purchase 99,668 shares vested; right to purchase remaining 99,669 shares vests in two equal installments on 3/31/2009 and 3/31/2010. /s/ Arie S. Belldegrun, M.D. 2008-06-13