ARROWHEAD RESEARCH CORPORATION
201 South Lake Avenue, Suite 703
Pasadena, CA 91101
February 27, 2007
VIA EDGAR CORRESPONDENCE
Mr. Frank Wyman
Securities & Exchange Commission
Division of Corporate Finance
100 F Street, NE
Washington, DC 20549
Re: | Arrowhead Research Corporation |
Form 10-K for fiscal year ended September 30, 2006
File No. 000-21898
Dear Mr. Wyman,
For the reasons we discussed yesterday, Arrowhead will provide a response to your letter dated February 22, 2007 and a draft revised 10-K FYE 9/30/06 on or before March 16, 2007.
If you have any questions, please feel free to contact me at 626-304-3400.
Sincerely,
/s/ Joseph T. Kingsley | ||
Joseph T. Kingsley | ||
Interim President & Chief Financial Officer |