Arrowhead Regains Compliance with Rule 5550,
NASDAQ $1.00 Minimum Bid Requirement
April 15, 2010 07:03 AM Eastern Daylight Time
PASADENA, Calif.--(EON: Enhanced Online News)--Arrowhead Research Corporation (NASDAQ:
ARWR) today announced that, on April 14, 2010, it received a notification from the NASDAQ Stock Market
indicating that the Company has regained compliance with NASDAQ Rule 5550(a)(2) in that the Company's closing
bid price has been at $1.00 per share or greater for at least 10 consecutive business days. The April 14, 2010
notification also stated that the matter of the deficiency, as set forth in the previously reported September 15, 2009
deficiency notice, is now closed.
About Arrowhead Research Corporation
Arrowhead Research Corporation (www.arrowheadresearch.com) (NASDAQ: ARWR) is a nanotechnology
company commercializing new technologies in the areas of life sciences and electronics. Arrowhead is seeking to
build value for shareholders through the progress of its subsidiaries and investments. Currently, Arrowhead is
focused primarily on its two majority owned subsidiaries; Unidym, a leader in carbon nanotube technology for
electronic applications, and Calando, at the forefront of clinical application of RNAi delivery technology. Arrowhead
also has minority investments in two privately held nanobiotech companies.
The Piacente Group, Inc.