GW Pharmaceuticals to Present at the Goldman Sachs 39th Annual Global Healthcare Conference

London, UK, Carlsbad, CA, 6 June, 2018: GW Pharmaceuticals plc (NASDAQ: GWPH, GW, the Company or the Group), a biopharmaceutical company focused on discovering, developing and commercializing novel therapeutics from its proprietary cannabinoid product platform, announced that GW management will present at the Goldman Sachs 39th Annual Global Healthcare Conference on Wednesday, June 13, 2018 at 10:00 a.m. PT at the Terranea Resort, in Rancho Palos Verde, CA .

A live audio webcast of the presentation will be available through GW’s corporate website in the investor relations section from the investor’s calendar of events page at www.gwpharm.com. A replay will be available soon after the live presentation.

About GW Pharmaceuticals plc and Greenwich Biosciences

Founded in 1998, GW is a biopharmaceutical company focused on discovering, developing and commercializing novel therapeutics from its proprietary cannabinoid product platform in a broad range of disease areas. GW, along with its U.S. subsidiary Greenwich Biosciences, is advancing an orphan drug program in the field of childhood-onset epilepsy with a focus on Epidiolex (cannabidiol), for which GW has submitted regulatory applications in the U.S. and Europe for the adjunctive treatment of Lennox-Gastaut syndrome and Dravet syndrome. The Company continues to evaluate Epidiolex in additional rare epilepsy conditions and currently has an ongoing clinical trial in Tuberous Sclerosis Complex. GW commercialized the world’s first plant-derived cannabinoid prescription drug, Sativex® (nabiximols), which is approved for the treatment of spasticity due to multiple sclerosis in numerous countries outside the United States and for which the company is now planning a US Phase 3 trial. The Company has a deep pipeline of additional cannabinoid product candidates which includes compounds in Phase 1 and 2 trials for epilepsy, glioblastoma, and schizophrenia. For further information, please visit www.gwpharm.com.

Enquiries:

GW Pharmaceuticals plc Stephen Schultz, VP Investor Relations 917 280 2424 / 401 500 6570