They have enough money to last years, yet they are making another offering for more cash!!! And, they are a possible candidate for tax inversion being based in Ireland. I did not like Elan and I am not familiar with their science, but they are now CASH HEAVY. https://www.google.com/finance?q=NASDAQ:PRTA Prothena Corporation plc (Nasdaq: PRTA) is a clinical-stage biotechnology company focused on the discovery, development and commercialization of novel antibodies that are directed towards diseases that involve protein misfolding or cell adhesion. http://www.prothena.com/ Prior to December 2012, the Prothena Business operated as part of Elan Corporation, plc (Elan), and not as a separate stand-alone entity. Prothena’s business consists of a substantial portion of Elan’s former drug discovery business platform, including Neotope Biosciences Limited and Onclave Therapeutics Limited, each former wholly owned subsidiaries of Elan. After the separation from Elan and the related distribution of our ordinary shares to Elan’s stockholders, our ordinary shares began trading on The NASDAQ Global Market under the symbol “PRTA” on December 21, 2012. Prothena Announces Proposed Offering of Ordinary Shares http://ir.prothena.com/releasedetail.cfm?ReleaseID=856111 DUBLIN, Ireland, June 23, 2014 (GLOBE NEWSWIRE) -- Prothena Corporation plc (NasdaqRTA), a clinical stage biotechnology company focused on the discovery, development and commercialization of novel antibodies for the potential treatment of diseases that involve protein misfolding or cell adhesion, announced today that it has commenced an underwritten public offering of $100 million of its ordinary shares. All of the ordinary shares in the offering are to be sold by Prothena. In addition, Prothena has granted the underwriters a 30-day option to purchase up to an additional $15 million of its ordinary shares.