Form 8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 12, 2007

 

Arrowhead Research Corporation

(Exact name of registrant as specified in its charter)

 

0-21898

(Commission File Number)

 

Delaware   46-0408024

(State or other jurisdiction

of incorporation)

  

(IRS Employer

Identification No.)

201 South Lake Avenue, Suite 703, Pasadena, CA 91101

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (626) 304-3400

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)

 

¨ Pre-commencement communications pursuant to Rule 13e-4 (c) under the Exchange Act (17 CFR 240.13e-4(c)

 

Item 8.01. Other Events.

On January 12, 2007 the Company distributed its 2007 Annual Report with a Letter to Shareholders from the Chairman of the Board (the “Letter to Shareholders”).

The Letter to Shareholders is attached as Exhibit 20.1 hereto.

Item 9.01. Financial Statements and Exhibits.

(c) Exhibits.

 

Exhibit No.   

Description

20.1    Letter to Shareholders dated January 12, 2007

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 

Date: January 19, 2007    
  ARROWHEAD RESEARCH CORPORATION
  By:  

/s/ Joseph T. Kingsley

    Joseph T. Kingsley, Interim President and Chief Financial Officer