Tengion Inc., a Montgomery County biotechnology firm that is developing ways to generate new organs based on a patient's own cells, registered with the Securities and Exchange Commission to raise $42.25 million in an initial public offering.
The East Norriton company, founded in 2003, has spent $88.2 million on research and development but does not yet have any revenues.
Original Article: Tengion registers for IPO | Philadelphia Inquirer | 12/24/2009
