13F-NT LIVE false false false 0001358916 XXXXXXXX 12-31-2015 12-31-2015 false Ridgeback Capital Investments Ltd.

75 Ninth Avenue 5th Floor New York NY 10011

13F NOTICE 028-12277 0001423994 028-12856 Ridgeback Capital Investments L.P. Y Ridgeback Capital Investments Ltd. is the general partner of Ridgeback Capital Investments L.P., which directly owns the securities reported herein. Pursuant to an investment management agreement, Ridgeback Capital Management LP maintains investment and voting power with respect to the securities held or controlled by Ridgeback Capital Investments Ltd. Wayne Holman, an individual, controls Ridgeback Capital Management LP. Ridgeback Capital Investments Ltd., Ridgeback Capital Management LP and Wayne Holman do not own any securities reported herein directly. Bud Holman 212-808-7729 /s/ Bud Holman New York NY 02-16-2016