Long-Term Investments	6 Months Ended
Jun. 30, 2013
Long-Term Investments	Note 6. 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. Pursuant to these license agreements, the Company is eligible to receive a 1% royalty fee on any future sales resulting from the licensed technology. As of June 2013, the Company’s ownership in Aduro was less than 3% on a fully diluted basis. Since receiving preferred stock in Aduro, the Company has carried its investment in Aduro at zero in its condensed consolidated balance sheet. As of June 30, 2013 the Company has not received any royalties under this agreement.

Long-Term Investments

6 Months Ended

Jun. 30, 2013

Note 6. 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. Pursuant to these license agreements, the Company is eligible to receive a 1% royalty fee on any future sales resulting from the licensed technology. As of June 2013, the Company’s ownership in Aduro was less than 3% on a fully diluted basis. Since receiving preferred stock in Aduro, the Company has carried its investment in Aduro at zero in its condensed consolidated balance sheet. As of June 30, 2013 the Company has not received any royalties under this agreement.