RCPT (MM)

Receptos, Inc. (Nasdaq:RCPT), a biopharmaceutical company developing therapeutic candidates for the treatment of immune and metabolic diseases, will announce financial results for the third quarter ended September 30, 2013 on Wednesday, October 30 at 2013 after the markets close. The announcement will be followed by a live webcast and conference call at 5:00 p.m. Eastern time (2:00 p.m. Pacific time).

Receptos management will host the call and webcast to discuss financial results and recent business highlights. The live call may be accessed by phone by calling (866) 757-6808 (domestic) or (760) 536-5211 (international), conference ID 91681088. The webcast can be accessed live on the Investor Relations section of the Receptos website at www.receptos.com and will be archived for 14 days following the call. A replay of the call will be available by phone by calling (855) 859-2056 or (404) 537-3406, conference ID 91681088.

About Receptos

Receptos is a biopharmaceutical company developing therapeutic candidates for the treatment of immune and metabolic diseases. The Company's lead program, RPC1063, is a sphingosine 1-phosphate 1 receptor (S1P1R) small molecule modulator candidate for immune indications, including relapsing multiple sclerosis (RMS) and inflammatory bowel disease (IBD). The Company is also developing RPC4046, an anti-interleukin-13 (IL-13) antibody for an allergic/immune-mediated orphan disease, eosinophilic esophagitis (EoE). Receptos has established expertise in high resolution protein crystal structure determination, biology and drug discovery for G-protein-coupled receptors (GPCRs).

CONTACT: Media and Investor Contact:
         
         Graham K. Cooper
         Chief Financial Officer, Receptos
         (858) 652-5708
         gcooper@receptos.com
         
         Michael Rice
         Founding Partner
         LifeSci Advisors, LLC
         (646) 597-6979
         mrice@lifesciadvisors.com