Long-Term Investments	12 Months Ended
Dec. 31, 2014
Long-Term Investments	Note 8. Long-Term Investments In connection with the agreements to license the immunotherapy technologies to Aduro Biotech (“Aduro”) in 2009, the Company received preferred shares of Aduro, a privately held company. Pursuant to these license agreements, the Company is eligible to receive a 1% royalty fee on any future sales resulting from the licensed technology. For the years ended December 31, 2014, 2013 or 2012, the Company has not received any royalty payments from Aduro pursuant to this agreement. As of December 31, 2014, the Company’s ownership in Aduro was less than 1% on a fully diluted basis. Since receiving preferred stock in Aduro, the Company has carried its investment in Aduro at zero in its consolidated balance sheets.

Long-Term Investments

12 Months Ended

Dec. 31, 2014

Note 8. Long-Term Investments

In connection with the agreements to license the immunotherapy technologies to Aduro Biotech (“Aduro”) in 2009, the Company received preferred shares of Aduro, a privately held company. Pursuant to these license agreements, the Company is eligible to receive a 1% royalty fee on any future sales resulting from the licensed technology. For the years ended December 31, 2014, 2013 or 2012, the Company has not received any royalty payments from Aduro pursuant to this agreement. As of December 31, 2014, the Company’s ownership in Aduro was less than 1% on a fully diluted basis. Since receiving preferred stock in Aduro, the Company has carried its investment in Aduro at zero in its consolidated balance sheets.