Tesaro Release: 2016 ESMO Annual Meeting Investor Briefing

TESARO will host an investor briefing in connection with the 2016 European Society for Medical Oncology (ESMO) annual congress in Copenhagen, Denmark. This event will be held on Saturday, October 8 at the IDA Conference Centre, Congress Hall.

TESARO INVESTOR BRIEFING

IDA CONFERENCE CENTRE

CONGRESS HALL (1st Floor) KALVEBOD BRYGGE 31-33

1780 KØBENHAVN V

COPENHAGEN, DENMARK

SATURDAY, OCTOBER 8, 2016

6:30 CET RECEPTION

7:00 CET PRESENTATION WEBCAST AND Q&A

LIVE & ARCHIVED WEBCAST WILL BE AVAILABLE AT WWW.TESAROBIO.COM

During the event, Dr. Mansoor Raza Mirza, Medical Director of the Nordic Society of Gynecologic Oncology (NSGO) and principal investigator on the NOVA trial, will review the niraparib NOVA data and will be available along with TESARO management to answer questions from investors and analysts. This meeting will be webcast live and archived at www.tesarobio.com. This event is for institutional investors and sell side analysts only. All interested parties are invited to listen to the webcast.

Please contact Jennifer Davis, Senior Director, Corporate Affairs & Investor Relations at (781) 325-1116 or jdavis@tesarobio.com to RSVP or with any questions.