Aradigm Corporation (NASDAQ: ARDM) will announce its fourth quarter and full year 2005 financial results on Wednesday February 22, 2006, after the close of the U.S. financial markets. The Company will host a conference call via webcast to discuss the results of the quarter at 1:30 p.m. Pacific Time that same day. Dr. Bryan Lawlis, President and Chief Executive Officer and Thomas Chesterman, Senior Vice President and Chief Financial Officer will host the conference call.