X0306 4 2015-08-27 1 0001463729 Receptos, Inc. RCPT 0001340823 Hedley Mary Lynne C/O RECEPTOS, INC. 3033 SCIENCE PARK ROAD, SUITE 300 SAN DIEGO CA 92121 1 0 0 0 Common Stock 2015-08-27 4 D 0 7400 D 0 D Stock Option (right to buy) 37.73 2015-08-27 4 D 0 18800 194.27 D 2024-04-10 Common Stock 18800 0 D Stock Option (right to buy) 27.44 2015-08-27 4 D 0 1390 204.56 D 2024-06-02 Common Stock 1390 0 D Pursuant to the terms of the Agreement and Plan of Merger (the "Merger Agreement"), dated as of July 14, 2015, by and among Receptos, Inc., a Delaware corporation (the "Company"), Celgene Corporation, a Delaware corporation ("Parent"), and Strix Corporation, a Delaware corporation and a wholly owned subsidiary of Parent, the reporting person disposed of 7,400 unvested time-based restricted stock units in exchange for $232.00 per share in cash (the "Offer Price"). Pursuant to the terms of the Merger Agreement, each stock option of the Company, whether vested or unvested, was cancelled in exchange for a cash payment with respect thereto equal to the product of (A) the excess, if any, of (1) the Offer Price over (2) the exercise price per share of such option, and (B) the number of shares of common stock underlying such option. The original vesting term of the option was as follows: the option vested in 36 equal monthly installments commencing on April 11, 2014. The original vesting term of the option was as follows: the option vested in 12 equal monthly installments commencing on June 3, 2014. /s/ Mary Lynne Hedley, by Christian Waage, Attorney-in-Fact 2015-08-27