X0203 3 2010-04-09 0 0001296391 TENGION INC TNGN 0001299239 Oak Investment Partners XI L P 1 GORHAM ISLAND WESTPORT CT 06880 0 0 1 0 Series A Convertible Preferred Stock Common Stock 639821 D Series B Convertible Preferred Stock Common Stock 251018 D Series C Convertible Preferred Stock Common Stock 352940 D These securities are Preferred Stock of the Issuer and do not have an expiration date. These securities will automatically convert into shares of Common Stock upon the closing of the Issuer's initial public offering, subject to certain conditions. Each share of Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock will convert automatically into shares of Common Stock on a 14.5-for-1 basis immediately prior to the closing of the Issuer's initial public offering, subject to certain conditions. /s/ Edward F. Glassmeyer, Managing Member of Oak Associates XI,LLC,the General Partner of Oak Investment Partners XI, Limited Partnership 2010-04-09