Michael D. Becker

MICHAEL D. BECKER is President and Chief Executive Officer of Cytogen
Corporation. Mr. Becker joined Cytogen in April 2001 and has served in
positions of increasing responsibility, including Chief Executive
Officer of the company’s AxCell Biosciences subsidiary and Vice
President, Business Development and Industry Relations. Prior to joining
Cytogen, he was with Wayne Hummer Investments LLC, a Chicago-based
regional brokerage firm from July 1996 to April 2001, where he held
senior positions as a biotechnology analyst, investment executive and
portfolio manager in addition to participating in sales management
activities. From October 1998 to April 2001, Mr. Becker also served on
the board of directors for the Chicago Biotech Network, a nonprofit
trade association for the biotechnology industry in Illinois. Mr. Becker
attended DePaul University in Chicago, Illinois.