X0303 4 2010-04-14 0 0001296391 TENGION INC TNGN 0001299239 Oak Investment Partners XI L P 1 GORHAM ISLAND WESTPORT CT 06880 0 0 1 0 Common Stock 2010-04-14 4 C 0 639821 A 639821 D Common Stock 2010-04-14 4 C 0 251018 A 251018 D Common Stock 2010-04-14 4 C 0 352940 A 352940 D Common Stock 2010-04-14 4 P 0 800000 5 A 800000 D Series A Convertible Preferred Stock 2010-04-14 4 C 0 9277411 D Common Stock 639821 0 D Series B Convertible Preferred Stock 2010-04-14 4 C 0 3639775 D Common Stock 251018 0 D Series C Convertible Preferred Stock 2010-04-14 4 C 0 5117638 D Common Stock 352940 0 D These shares of common stock were issued upon the automatic conversion of the Preferred Stock listed in Table II on a one-for-14.5 basis upon the closing of the Issuer's initial public offering of common stock. Shares acquired in the Issuer's initial public offering of common stock. These securities are Preferred Stock of the Issuer and do not have an expiration date. These securities automatically converted into common stock of the Issuer on a one-for-14.5 basis upon the closing of the Issuer's initial public offering of common stock. /s/ Edward F. Glassmeyer, Managing Member of Oak Associates XI, LLC, the General Partner of Oak Investment Partners XI, Limited Partnership 2010-04-15