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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
879407	Arrowhead Research Corp	ARWR	Services-Commercial Physical & Biological Research (8731)	460408024

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1296735	Charles Mckenney	225 South Lake Avenue, Suite 1050 Pasadena CA 91101		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2014-10-01	2,500	$5.19	19,720	No	4	M	Direct
Common Stock	Disposition	2014-10-01	2,500	$14.70	17,220	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2014-10-01	2,500	$0.00	2,500	$5.19

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
50,500	2012-02-16	2022-02-16	No	4	M	Direct

Footnotes

The sales reported on this Form 4 were effected pursuant to a trading plan adopted pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.
Represents the weighted average price at which shares were sold within a range between 14.66 and 14.73. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.
Includes previously reported shares of common stock underlying Restricted Stock Units granted to the Reporting person which are subject to certain vesting conditions.