9. Financing Agreements

On May 9, 2012, we completed an underwritten public offering of 17,500,000 shares of our common stock to the public at $4.25 per share. The net proceeds to us from this offering were $69.6 million, after deducting offering expenses.

On November 3, 2011, we completed an underwritten public offering of 27,600,000 shares of our common stock including 3,600,000 shares sold pursuant to the full exercise of an overallotment option previously granted to the underwriters at a price to the public of $2.50 per share. The net proceeds to us from this offering were $64.5 million, after deducting offering expenses.

On November 2, 2010, we completed an underwritten public offering of 26,450,000 shares of our common stock including 3,450,000 shares sold pursuant to the full exercise of an overallotment option previously granted to the underwriters at a price to the public of $1.70 per share. The net proceeds to us from this offering were $42.0 million, after deducting offering expenses.

On September 20, 2010, we entered into a Purchase Agreement with Aspire Capital, which provided that, upon the terms and subject to the conditions and limitations set forth therein, Aspire Capital was committed to purchase up to an aggregate of $30.0 million of shares of our common stock (the “Purchase Shares”) over the 25-month term of the Purchase Agreement. Under the Purchase Agreement, we agreed to pay Aspire Capital a commitment fee equal to 4% of $30 million in consideration for Aspire Capital’s obligation to purchase up to $30 million of our common stock. We paid this commitment fee of $1.2 million by the issuance of 600,000 shares of our common stock and this fee was recorded as a cost of raising capital and netted against the gross proceeds from the Purchase Agreement in September 2010. During 2010, we sold 2,350,000 shares of common stock to Aspire Capital for $3.3 million and during 2011 we sold 10,995,210 shares of common stock for $26.7 million, which totaled the proceeds available to us of $30 million under the Purchase Agreement.

On April 16, 2010, we completed an underwritten public offering resulting in net proceeds of $41.1 million, after deducting offering expenses of approximately $3.0 million, from the sale of 30,293,000 units at a per unit price of $1.4525. Each unit consisted of one share of common stock and one warrant to purchase 0.5 of a share of common stock. Each warrant has an exercise price of $1.50 per share, and is exercisable for a period of five years from the date of issuance. From this offering, warrants to purchase an aggregate of 10,913,873 shares of our common stock were outstanding as of December 31, 2012 (including the warrants to purchase 6,765,128 shares provided to Symphony as described in Note 8 “Symphony Dynamo, Inc.”).

On August 17, 2009, we entered into an equity distribution agreement with Wedbush Morgan Securities, Inc. (“Wedbush”) pursuant to which we could offer and sell shares of our common stock having an aggregate offering price of up to $15 million from time to time through Wedbush as our sales agent or to Wedbush as a principal. During the fiscal year ended December 31, 2009, we sold 1,281,100 shares of common stock under the agreement with Wedbush as our sales agent for aggregate net proceeds of $2.3 million after deducting commissions paid to Wedbush and offering expenses. On September 14, 2010, the Company terminated the agreement with Wedbush. Prior to the termination of the agreement on September 14, 2010, during the year ended December 31, 2010, we sold 900,860 shares of common stock under the agreement with Wedbush as our sales agent for net proceeds of $1.2 million.

In connection with a 2007 loan agreement that was subsequently terminated in 2008, we issued warrants to purchase up to 3,550,000 shares of our common stock as follows:


Warrant Issuance Date	Shares Issuable (in thousands)		Expiration Date		Exercise Price per Share		Outstanding as of December 31, 2012
July 18, 2007		1,250		2/26/2014	$	5.13		1,250
October 18, 2007		1,300		2/26/2014	$	1.68		250
December 27, 2007		300		2/26/2014	$	5.65		300
December 27, 2007		700		2/26/2014	$	1.68		—

Total		3,550						1,800

As December 31, 2012, warrants to purchase an aggregate of approximately 12,700,000 shares of our common stock were outstanding.