ADVISORY, Aug. 2, 2013 (GLOBE NEWSWIRE) -- What: Portola Pharmaceuticals, Inc. [PTLA], a biopharmaceutical company focused on the development and commercialization of novel therapeutics in the areas of blood clots and blood cancers for patients who currently have limited or no approved treatment options, will visit the NASDAQ MarketSite in Times Square. In honor of the occasion, William Lis, CEO will ring the Opening Bell. Where: NASDAQ MarketSite – 4 Times Square – 43 rd & Broadway – Broadcast Studio When: Monday, August 5, 2013 – 9:15 a.m. to 9:30 a.m. ET Contact: Teri Ritz (650) 246-7300 email@example.com NASDAQ MarketSite: Christine Barna (646) 441-5310 Christine.Barna@nasdaqomx.com Feed Information: Fiber Line (Encompass Waterfront): 4463 Gal 3C/06C 95.05 degrees West 18 mhz Lower DL 3811 Vertical FEC 3/4 SR 13.235 DR 18.295411 MOD 4:2:0 DVBS QPSK Facebook and Twitter: For multimedia features such as exclusive content, photo postings, status updates and video of bell ceremonies please visit our Facebook page at: http://www.facebook.com/NASDAQ . For news tweets, please visit our Twitter page at: http://twitter.com/nasdaqomx . Webcast: A live webcast of the NASDAQ OpeningBell will be available at: http://www.nasdaq.com/about/marketsitetowervideo.asx . Photos: To obtain a hi-resolution photograph of the Market Open, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market open of your choice. About Portola Pharmaceuticals, Inc. [PTLA]: Portola is a biopharmaceutical company focused on the development and commercialization of novel therapeutics in the areas of thrombosis (blood clots), other hematologic disorders for patients who currently have limited or no approved treatment options. Portola's current development-stage portfolio consists of three compounds discovered through its internal research efforts and one discovered by Portola scientists during their time at a prior company.