Stockholders' Equity

6 Months Ended

Mar. 31, 2016

Equity [Abstract]

Stockholders' Equity

NOTE 5. STOCKHOLDERS’ EQUITY

At March 31, 2016, the Company had a total of 150,000,000 shares of capital stock authorized for issuance, consisting of 145,000,000 shares of Common Stock, par value $0.001 per share, and 5,000,000 shares of Preferred Stock, par value $0.001 per share.

At March 31, 2016, 59,960,711 shares of Common Stock were outstanding.  Additionally, 15,652 shares of Series C Preferred Stock were outstanding, which are convertible into 2,670,990 shares of Common Stock. At March 31, 2016, 8,753,473 shares of Common Stock were reserved for issuance upon exercise of options and vesting of restricted stock units granted or available for grant under Arrowhead’s 2004 Equity Incentive Plan and 2013 Incentive Plan, as well as for inducement grants made to new employees.

The Preferred Stock is convertible to Common Stock by its holder at its stated conversion price, though it is not convertible to the extent the holder would beneficially own more than 9.99% of the number of shares of outstanding Common Stock immediately after the conversion.  The holders of Preferred Stock are eligible to vote with the Common Stock of the Company on an as-converted basis, but only to the extent they are eligible for conversion without exceeding the 9.99% ownership limitation. The Preferred Stock does not carry a coupon, but it is entitled to receive dividends on a pari passu basis with Common Stock, when and if declared.  In any liquidation or dissolution of the Company, the holders of Preferred Stock are entitled to participate in the distribution of the assets, to the extent legally available for distribution, on a pari passu basis with the Common Stock.

The following table summarizes information about warrants outstanding at March 31, 2016:

Exercise prices		Number of  Warrants		RemainingLife in Years
$	70.60		94,897		1.1
$	5.00		364,375		0.2
$	5.09		239,534		0.2
$	4.16		1,000		0.7
$	3.25		334,347		0.4
$	2.12		75,000		1.7
$	1.83		277,284		1.7
$	7.14		80,000		2.2
Total warrants outstanding			1,466,437