0000873303 2010-06-30 0000873303 2009-12-31 0000873303 2011-07-27 0000873303 2011-06-30 0000873303 2010-12-31 0000873303 2011-04-01 2011-06-30 0000873303 2010-04-01 2010-06-30 0000873303 2010-01-01 2010-06-30 0000873303 1980-07-22 2011-06-30 0000873303 2011-01-01 2011-06-30 iso4217:USD xbrli:shares xbrli:shares iso4217:USD Note 3. Accounts Receivable Accounts receivable are stated at invoiced amount and do not bear interest as they are due within 12 months. Because a majority of accounts receivable are from the U.S. government and historically no amounts have been written off, an allowance for doubtful accounts receivable is not considered necessary. The accounts receivable balance included $4.6 million and $3.2 million of receivables that were unbilled at June 30, 2011 and December 31, 2010, respectively. 2124000 2200000 8000 -2125000 -237000 -44000 -11697000 -143000 -7586000 10475000 -1931000 -9040000 18527000 11253000 8823000 87000 51000 241000 151000 1189000 644000 8075000 750000 Note 8. Liquidity Since its inception in 1980 through June 30, 2011 the Company has incurred losses of approximately $304.5 million, substantially all of which resulted from expenditures related to research and development, general and administrative charges and acquired in-process research and development resulting from two acquisitions. The Company has not generated any material revenue from product sales to date, and there can be no assurance that revenue from product sales will be achieved. The Company expects to incur operating losses over the next several years. At June 30, 2011, cash and cash equivalents were $54.2 million, compared to $33.6 million at December 31, 2010. The Company's principal sources of liquidity and cash have been equity financings and revenue from its U.S. government research contracts. The Company's principal uses of cash have been research and development expenses, general and administrative expenses and other working capital requirements. In the periods presented, substantially all of the revenue generated by the Company was derived from research contracts with the U.S. government. As of June 30, 2011, the Company had contracts with the U.S. government pursuant to which it is entitled to receive up to an aggregate of $152.3 million for development of its product candidates, of which $102.0 million had been recognized as revenue and $50.3 million of which relates to development that has not yet been completed and has not been billed. See Note 4 — "U.S. Government Contracts" for additional information. In January and August 2009, the Company sold shares of its common stock and also issued warrants to purchase shares of its common stock in offerings registered under the Securities Act of 1933 (the "Securities Act"). In April 2011, the Company sold 23.0 million shares of its common stock at the price of $1.50 per share in an offering registered under the Securities Act. The offering generated gross proceeds of $34.5 million. See Note 9 — "Equity Financings" for more information. 16232000 1938000 10097000 Note 11. Recent Accounting Pronouncements In January 2010, the Financial Accounting Standards Board ("FASB"), issued guidance to amend the disclosure requirements related to recurring and nonrecurring fair value measurements. Other than requiring additional disclosures, adoption of this new guidance did not have a material impact on the Company's financial statements. In April 2010, the FASB issued guidance on applying the milestone method of revenue recognition for milestone payments for achieving specific performance measures when those payments are related to uncertain future events. The guidance is effective on a prospective basis to milestones achieved in fiscal years, and interim periods within those years, beginning January 1, 2011. The adoption of this new guidance did not have a material impact on the Company's financial statements. In April 2011, the FASB issued guidance to achieve common fair value measurement and disclosure requirements between GAAP and International Financial Reporting Standards. This guidance amends current fair value measurement and disclosure guidance to include increased transparency around valuation inputs and investment categorization. The guidance is effective for fiscal years and interim periods beginning after December 15, 2011. We do not believe our adoption of this new guidance in the first quarter of 2012 will have a material impact on the Company's financial statements. In June 2011, the FASB issued guidance regarding presentation of other comprehensive income in the financial statements. This guidance will eliminate the option under GAAP to present other comprehensive income in the statement of changes in equity. Under the guidance, the Company will have the option to present the components of net income and comprehensive income in either one or two consecutive financial statements. The guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this new guidance is not expected to have a material impact on the Company's financial statements.   115110000 5201000 3997000 25881000 11585000 17897000 39111000 19940000 177000 false --12-31 Q2 2011 2011-06-30 10-Q 0000873303 135712620 Accelerated Filer AVI BIOPHARMA INC

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Note 6. Warrants Warrants issued in connection with the Company's December 2007, January 2009, and August 2009 financings are classified as liabilities due to their settlement terms. These warrants are non-cash liabilities; the Company is not required to expend any cash to settle these liabilities. The fair value of these warrants was recorded on the balance sheet at issuance and the warrants are marked to market at each financial reporting period, with changes in the fair value recorded as a gain or loss in the statement of operations. The fair value of the warrants is determined using the Black-Scholes option-pricing model, which requires the use of significant judgment and estimates for the inputs used in the model. The following reflects the weighted-average assumptions for each of the periods indicated:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="76%"> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three and Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Risk-free interest rate</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">0.5%-1.3%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">0.1%-2.6%</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Expected dividend yield</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">0%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">0%</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Expected lives</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">1.5-3.4 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">0.1-4.4 years</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Expected volatility</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">55.3%-88.5%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">62.3%-95.8%</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Shares underlying warrants classified as liabilities</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">28,948,962</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">29,717,546</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Market value of stock at beginning of year</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">2.12</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">1.58</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Market value of stock at end of period</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">1.43</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">1.61</td> <td valign="bottom" nowrap="nowrap">  </td></tr></table> The risk-free interest rate is estimated using an average of treasury bill interest rates at the valuation date that correlate to the prevailing interest rates over a period commensurate with the expected lives. The expected dividend yield is zero as the Company has not paid any dividends to date and does not expect to pay dividends in the future. The expected lives are based on the remaining contractual lives of the related warrants at the valuation date. The expected volatility is estimated using historical volatility of the Company's common stock, taking into account factors such as future events or circumstances that could impact volatility over a period commensurate with the expected lives. The amounts estimated according to the Black-Scholes option pricing model may not be indicative of the actual values realized upon the exercise of these warrants by the holders. The Company also has warrants that are classified as permanent equity; the fair value of the warrants was recorded as additional paid-in capital at the time of issuance and no further adjustments are made. 255,895 shares were underlying such warrants for each of the three and six months ended June 30, 2011 and 2010. A summary of the Company's warrant activity with respect to the six months ended June 30, 2011 is as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="75%"> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom" nowrap="nowrap"> Warrants</td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Shares</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted Average Exercisable Price</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted Average Remaining Contractual Term</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">29,665,441</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1.58</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Granted</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Exercised</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(460,584</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1.39</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Canceled or expired</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">29,204,857</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1.59</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.8</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr></table>

307646000

304534000

Note 5. Stock Compensation Stock Options The Company sponsors a 2002 Equity Incentive Plan (the "2002 Plan") pursuant to which it may issue options to purchase its common stock to the Company's employees, directors and service providers. In June 2011, the 2002 Plan was replaced by the 2011 Equity Incentive Plan (the "2011 Plan" and, together with the 2002 Plan, the "Plans") following approval by the Company's shareholders. In general, stock options granted under the 2002 Plan prior to December 31, 2010 vest over a three year period, with one-third of the underlying shares vesting on each anniversary of grant, and have a ten year term. Beginning in January 2011, stock options granted under the 2002 Plan vest over a four year period, with one-fourth of the underlying shares vesting on the first anniversary of the grant and 1/48th of the underlying shares vesting monthly thereafter, such that the underlying shares will be fully vested on the fourth anniversary of the grant. As of June 30, 2011, no shares of common stock remain available for future grant under the 2002 Plan. In June 2011, the Company's shareholders approved the 2011 Plan. There will be no further grants under the 2002 Plan, but termination of the 2002 Plan will not affect outstanding awards previously issued pursuant to the 2002 Plan. The 2011 Plan allows for the grant of stock options, stock appreciation rights, restricted stock awards, restricted stock units, performance shares and performance units.   In general, stock options granted under the 2011 Plan vest over a four year period, with one-fourth of the underlying shares vesting on the first anniversary of the grant and 1/48th of the underlying shares vesting monthly thereafter, such that the underlying shares will be fully vested on the fourth anniversary of the grant. The maximum aggregate number of shares that may be issued under the 2011 Plan is 15,072,457, including 2,072,457 shares reserved but not issued under the 2002 Plan. In addition, shares subject to outstanding awards under the 2002 Plan that expire or otherwise terminate without having been exercised in full, or are forfeited to or repurchased by the Company, will be available for issuance under the 2011 Plan, up to a maximum of 11,086,073 shares. As of June 30, 2011, 14,919,456 shares of common stock remain available for future grant under the 2011 Plan. A summary of the Company's stock option activity with respect to the six months ended June 30, 2011 follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="67%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom" nowrap="nowrap"> Stock Options</td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Underlying Shares</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted Average Exercise Price</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted Average Remaining Contractual Term</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Aggregate Intrinsic Value</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">8,490,055</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2.14</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Granted</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,545,000</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1.97</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Exercised</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(123,691</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1.08</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Canceled or expired</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(1,012,373</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.51</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">11,898,991</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2.06</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7.51</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">    869,000</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td height="8"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td></tr> <tr><td valign="top"> Vested at June 30, 2011 and expected to vest</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">11,491,000</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2.06</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7.43</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">861,000</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td height="8"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td> <td height="8" colspan="4"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Exercisable at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,104,566</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2.38</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5.16</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">592,000</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr></table> The weighted-average fair value per share of stock-based awards, including stock options and restricted stock grants, granted to employees during the three months ended June 30, 2011 and 2010 was $1.05 and $0.90, respectively, and during the six months ended June 30, 2011 and 2010 was $1.33 and $1.03, respectively. During the same periods, the total intrinsic value of stock options exercised was $70,000 and $4,000, respectively, and the total grant date fair value of stock options that vested was $1,807,000 and $2,288,000, respectively. Valuation Assumptions Stock-based compensation costs are based on the fair value calculated from the Black-Scholes option-pricing model on the date of grant for stock options. The fair value of stock grants is amortized as compensation expense on a straight-line basis over the vesting period of the grants. The fair values of stock options granted during the periods presented were measured on the date of grant using the Black-Scholes option-pricing model, with the following assumptions:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="78%"> </td> <td valign="bottom" width="1%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="1%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three and Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Risk-free interest rate</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">1.9%-2.4%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1.9%-2.8%</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Expected dividend yield</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">0%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">0%</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Expected lives</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5.4-5.5 years</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5.3-5.8 years</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Expected volatility</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">80.9%-81.6%</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">83.3%-87.9%</td> <td valign="bottom" nowrap="nowrap">  </td></tr></table> The risk-free interest rate is estimated using an average of treasury bill interest rates at the time of grant that correlate to the prevailing interest rates for a period commensurate with the expected life. The expected dividend yield is zero as the Company has not paid any dividends to date and does not expect to pay dividends in the future. The expected lives are estimated using expected and historical exercise behavior. The expected volatility is estimated using historical calculated volatility of the Company's common stock over a period commensurate with the expected life. The amounts estimated according to the Black-Scholes option pricing model may not be indicative of the actual values realized upon the exercise of these options by the holders. The Company is required to estimate potential forfeiture of stock grants and adjust compensation cost recorded accordingly. The estimate of forfeitures is adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures are recognized through a cumulative catch-up in the period of change and impact the amount of stock compensation expense to be recognized in future periods.   Stock-based Compensation Expense The amount of stock-based compensation expense recognized in the three months ended June 30, 2011 and 2010 was $716,000 and $1,605,000, respectively. For the six months ended June 30, 2011 and 2010, stock-based compensation expense recognized was $1,862,000 and $2,031,000, respectively. A summary of the stock-based compensation expense recognized in the statement of operations is as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="82%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Research and development</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">359</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">216</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> General and administrative</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">357</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,389</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">716</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,605</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> The following are the stock-based compensation expense recognized in the Company's statements of operations for the six months ended June 30, 2011 and 2010:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="82%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Research and development</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">732</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">415</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> General and administrative</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,130</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,616</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,862</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2,031</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> As of June 30, 2011, there was $6,813,000 of total unrecognized compensation cost related to non-vested share-based compensation arrangements granted, including stock options and restricted stock. These costs are expected to be recognized over a weighted-average period of 2.84 years. During the six months ended June 30, 2011, in connection with their appointments as officers of the Company, Ms. Effie Toshav, Dr. Peter Linsley and Dr. Edward Kaye were granted options to purchase 650,000, 800,000 and 850,000 shares, respectively, of the Company's common stock at exercise prices of $2.58, $1.76, and $1.38, respectively. These options were granted outside of the Plans and have vesting schedules consistent with the customary schedule under the 2011 Plan. The shares underlying these options are included in the summary stock compensation table noted above in this Note 5. Paul Medeiros, the Company's former Senior Vice President of Business Development and Chief Business Officer, ceased to be an employee of the Company effective June 1, 2011. Pursuant to the terms of his employment agreement and a separation and release agreement that the Company entered into with Mr. Medeiros in connection with the termination of his employment, Mr. Medeiros received 12 months of his base compensation in a lump sum (an amount equal to $321,300) and all of his unvested stock options vested on June 1, 2011 and will be exercisable for a period of 180 days following June 1, 2011. During the six months ending June 30, 2011, the Company paid his cash severance and recorded a charge of $288,000 for the stock compensation expense. Dr. Stephen Shrewsbury, the Company's former Senior Vice President and Chief Medical Officer, ceased to be an employee of the Company effective August 1, 2011. Pursuant to the terms of his employment agreement and a separation and release agreement that the Company entered into with Dr. Shrewsbury in connection with the termination of his employment, Dr. Shrewsbury will receive 12 months of his base compensation in a lump sum (an amount equal to $319,300) and all of his unvested stock options vested on August 1, 2011 and will be exercisable for a period of 180 days following August 1, 2011. As of June 30, 2011, the Company has recorded a liability for the salary of $319,300 and has recorded a charge of $288,000 for the acceleration of stock compensation expense for the six months ending June 30, 2011. J. David Boyle II, the Company's former Senior Vice President and Chief Financial Officer, ceased to be an employee of the Company effective July 24, 2011, the expiration date of his employment agreement. Pursuant to the terms of a separation agreement and release that the Company entered into subsequent to June 30, 2011 with Mr. Boyle in connection with the separation of his employment, Mr. Boyle will receive a lump sum payment equal to $113,507, the vesting of 116,666 shares subject to Mr. Boyle's August 2008 option grant will be accelerated and the post-separation exercise period for options to purchase up to 593,333 shares of the Company's common stock will be extended until December 30, 2011. As of June 30, 2011, the Company has recorded a liability for $113,507 and has recorded a decrease of $25,000 for the stock compensation expense for the six months ending June 30, 2011.

-0.16

-0.15

0.03

0.01

-0.16

-0.15

0.02

0.01

Note 7. Earnings Per Share Basic net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding. Diluted net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of common shares and dilutive common stock equivalent shares outstanding.   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="81%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands, except per share data)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Net income (loss)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,279</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(16,656</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr><td valign="top"> Weighted-average number of shares of common stock and common stock equivalents outstanding:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Weighted-average number of common shares outstanding for computing basic earnings per share</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">134,090</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">110,383</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Dilutive effect of warrants and stock options after application of the treasury stock method*</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,826</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Weighted-average number of common shares outstanding for computing diluted earnings per share</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">138,916</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">110,383</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Net income (loss) per share—basic</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.01</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(0.15</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Net income (loss) per share—diluted</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.01</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(0.15</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="83%"> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands, except per share data)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Net income (loss)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">3,112</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(17,240</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr><td valign="top"> Weighted-average number of shares of common stock and common stock equivalents outstanding:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Weighted-average number of common shares outstanding for computing basic earnings per share</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">123,346</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">110,404</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Dilutive effect of warrants and stock options after application of the treasury stock method*</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,672</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Weighted-average number of common shares outstanding for computing diluted earnings per share</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">130,018</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">110,404</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Net income (loss) per share—basic</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.03</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(0.16</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Net income (loss) per share—diluted</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.02</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(0.16</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="2%"> </td> <td valign="top" width="2%" align="left">*</td> <td valign="top" align="left">Warrants and stock options to purchase 13,509,380 and 39,335,409 shares of common stock for the six months ending June 30, 2011 and 2010, respectively, and 23,558,098 and 39,335,409 for the three months ending June 30, 2011 and 2010, respectively, were excluded from the net income (loss) per share calculation as their effect would have been anti-dilutive. </td></tr></table>

2015000

2551000

Note 2. Fair Value Measurements The Company measures at fair value certain financial assets and liabilities in accordance with a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company's market assumptions. There are three levels of inputs that may be used to measure fair-value:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left"></td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Level 1 — quoted prices for identical instruments in active markets; </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left"></td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Level 2 — quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left"></td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> Level 3 — valuations derived from valuation techniques in which one or more significant value drivers are unobservable. </td></tr></table>   The Company's assets and liabilities measured at fair value on a recurring basis consisted of the following as of the date indicated:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="75%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">Fair Value Measurement as of June 30, 2011</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 3</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="14" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Cash and cash equivalents</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">54,188</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">54,188</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total assets</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">54,188</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">54,188</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td height="16"> </td> <td height="16" colspan="16"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">Fair Value Measurement as of June 30, 2011</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 3</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="14" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Warrants</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total liabilities</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td height="16"> </td> <td height="16" colspan="16"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">Fair Value Measurement as of December 31, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 3</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="14" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Cash and cash equivalents</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">33,589</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">33,589</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total assets</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">33,589</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">33,589</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td height="16"> </td> <td height="16" colspan="16"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="14" align="center">Fair Value Measurement as of December 31, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 3</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="14" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Warrants</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,111</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,111</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total liabilities</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,111</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,111</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> A reconciliation of the change in value of the Company's warrants for the three months ended June 30, 2011 is as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="78%"> </td> <td valign="bottom" width="17%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Fair Value Measurements Using Significant Unobservable Inputs (Level 3)</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance at March 31, 2011</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">31,193</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Change in value of warrants</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(11,253</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> A reconciliation of the change in value of the Company's warrants for the six months ended June 30, 2011 is as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="78%"> </td> <td valign="bottom" width="17%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Fair Value Measurements Using Significant Unobservable Inputs (Level 3)</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,111</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Change in value of warrants</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(18,527</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Reclassification upon exercise of warrants</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(644</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Balance at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">19,940</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> See Note 6 —"Warrants" for additional information related to the determination of fair value of the warrants. The carrying amounts reported in the balance sheets for cash, accounts receivable, accounts payable, and other current monetary assets and liabilities approximate fair value because of the immediate or short-term maturity of these financial instruments.

1742000

1845000

3980000

4459000

97388000

7577000

4733000

8986000

3960000

17001000

1336000

Note 10. Income Taxes The Company has not recognized any liability for unrecognized tax benefits. There are no unrecognized tax benefits included in the balance sheet that would, if recognized, affect the effective tax rate. The Company's policy is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had no accrual for interest or penalties on its balance sheet at June 30, 2011 or December 31, 2010, and has not recognized interest and/or penalties in the statement of operations for the three and six months ended June 30, 2011. At December 31, 2010, the Company had net deferred tax assets of approximately $109 million. The deferred tax assets are primarily composed of U.S. federal and state tax net operating loss carryforwards, U.S. federal and state research and development credit carryforwards, share-based compensation expense and intangibles. Due to uncertainties surrounding its ability to generate future taxable income to realize these assets, a full valuation allowance has been established to offset its net deferred tax asset. Additionally, the Internal Revenue Code rules could limit the future use of its net operating loss and research and development credit carryforwards to offset future taxable income based on ownership changes and the value of the Company's stock.

444000

47000

45000

45976000

74933000

45857000

36938000

1094000

1046000

Note 4. U.S. Government Contracts In the periods presented, substantially all of the revenue generated by the Company was derived from research contracts with the U.S. government. The Company recognizes revenues from U.S. government research contracts during the period in which the related expenditures are incurred and presents these revenues and related expenses gross in the consolidated financial statements. As of June 30, 2011, the Company had contracts with the U.S. government pursuant to which it is entitled to receive up to an aggregate of $152.3 million for development of its product candidates, of which $102.0 million had been billed or recognized as revenue and $50.3 million of which relates to development that has not yet been completed and has not been billed. The following is a description of such contracts. January 2006 Agreements (Ebola and Marburg Host Factors, Dengue, Anthrax and Ricin) In January 2006, the final version of the 2006 defense appropriations act was enacted, which act included an allocation of $11.0 million to fund the Company's ongoing defense-related programs under four different contracts, all of which were executed in 2007, and the last of which expired in October 2010. Net of government administrative costs, it was anticipated that the Company would receive up to $9.8 million under this allocation. The Company's technology is expected to be used to continue developing RNA-based drugs against Ebola and Marburg viruses. As of June 30, 2011, the Company had recognized revenue of $9.7 million with respect to these contracts and the Company does not expect to receive any additional significant funds under these contracts. November 2006 Agreement (Ebola, Marburg and Junín Viruses) In November 2006, the Company entered into a two-year research contract with the U.S. Defense Threat Reduction Agency ("DTRA") pursuant to which the Company was entitled to $28.0 million to fund development of the Company's antisense therapeutic candidates for Ebola, Marburg and Junín hemorrhagic viruses. In May 2009, this contract was amended to extend the term of the contract until November 2009 and to increase funding by $5.9 million to an aggregate of $33.9 million. In September 2009, the contract was amended again to extend the term of the contract to February 2011 and to increase funding by an additional $11.5 million to an aggregate of $45.4 million. In November 2010, the Company and DTRA agreed that the key activities under this contract had been completed and that further activities under this contract would cease and this contract would be deemed concluded. As of June 30, 2011, the Company had recognized revenue of $38.4 million with respect to this contract and the Company does not expect further significant revenue. May 2009 Agreement (H1N1/Influenza) In May 2009, the Company entered into a contract with DTRA to develop swine flu drugs. Under this contract, the Company was entitled to receive up to $4.1 million for work involving the application of the Company's proprietary PMO and PMOplus™ antisense chemistry. The Company used the funds from this contract to conduct preclinical development activities, including animal testing. In March 2010, the contract was amended to include testing against additional influenza strains including H5N1 (avian flu), Tamiflu®-resistant H1N1 (swine flu) and H3N2 (seasonal flu) and funding increased by $4.0 million to an aggregate of $8.1 million. As of June 30, 2011, the Company had recognized revenue of $7.0 million with respect to this contract and does not expect to receive additional significant revenue. June 2010 Agreement (H1N1/Influenza) On June 4, 2010, the Company entered into a contract with the DTRA to advance the development of AVI-7100, which was previously designated AVI-7367 and which has been renumbered by the Company, as a medical countermeasure against the pandemic H1N1 influenza virus in cooperation with the Transformational Medical Technologies program ("TMT") of the U.S. Department of Defense ("DoD"). The contract originally provided for funding of up to $18.0 million (which was reduced to $17.7 million in March 2011 when the contract was definitized) to advance the development of AVI-7100, including studies enabling an Investigational New Drug ("IND") application with the U.S. Food and Drug Administration ("FDA"), the development of an intranasal delivery formulation, and the funding of the entry into a Phase I clinical trial to obtain human safety data to support potential use under an Emergency Use Authorization. In April 2011, the contract was amended to remove clinical studies from the scope of work and to add in vitro broad spectrum strain investigation, additional formulation work related to intranasal delivery and an intravenous compatibility study. As a result of this amendment, the amount of funding under the contract decreased to an aggregate of $13.1 million. The period of performance for this contract ended on June 3, 2011 and as of June 30, 2011, the Company had recognized revenue of $12.0 million with respect to this contract and does not expect to receive additional significant revenue. July 2010 Agreement (Ebola and Marburg)   On July 14, 2010, the Company was awarded a new contract with the DoD Chemical and Biological Defense Program through the U.S. Army Space and Missile Defense Command for the advanced development of the Company's hemorrhagic fever virus therapeutic candidates, AVI-6002 and AVI-6003, for Ebola and Marburg viruses, respectively. The contract is funded as part of the TMT program, which was established to develop innovative platform-based solutions countering biological threats. The contract is structured into four segments for each therapeutic candidate with potential funding of up to approximately $291 million. Activity under the first segment began in July 2010 and provides for funding to the Company of up to approximately $80 million. Activities under the first segment include Phase I studies in healthy volunteers as well as preclinical studies, and are scheduled over an 18-month period. After completion of the first segment, and each successive segment, TMT has the option to proceed to the next segment for either or both AVI-6002 and AVI-6003. If TMT exercises its options for all four segments, contract activities would include all clinical and licensure activities necessary to obtain FDA regulatory approval of each therapeutic candidate and would provide for a total funding award to the Company of up to approximately $291 million over a period of approximately six years. Under an earlier contract, the Company completed development activities that culminated in the opening of IND applications for both AVI-6002 and AVI-6003. As of June 30, 2011, the Company had recognized revenue of $32.3 million with respect to the July 2010 Agreement. The following table sets forth the impact on revenue of each of the contracts with the U.S. government on the Company's results of operations for the three and six months ended June 30, 2011 and 2010.   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="74%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June 30,</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom">  </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands)</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(in thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> January 2006 Agreements (Ebola and Marburg host factor, Dengue, Anthrax and Ricin)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">147</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">468</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> November 2006 Agreement (Ebola, Marburg and Junín Viruses)</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,063</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,608</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> May 2009 Agreement (H1N1)</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">68</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,187</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">135</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,444</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> June 2010 Agreement (H1N1)</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">883</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">433</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,207</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">433</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> July 2010 Agreement (Ebola and Marburg)</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">10,585</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">22,490</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Other Agreements</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">49</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">167</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">49</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">248</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">11,585</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">3,997</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">25,881</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">5,201</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>

81000

83000

1842000

1800000

297156000

-20000

32308000

-25925000

-965000

-1201000

-217043000

-10548000

-10508000

-304534000

-17240000

-16656000

3112000

1279000

6160000

-1844000

-8989000

18768000

11404000

-310694000

-15396000

-7667000

-15656000

-10125000

<div> Note 1. Basis of Presentation The accompanying unaudited condensed consolidated financial statements reflect the accounts of AVI BioPharma, Inc. (the "Company") and its consolidated subsidiaries. The accompanying unaudited condensed consolidated balance sheet data as of December 31, 2010 was derived from audited financial statements not included in this report. The accompanying unaudited condensed consolidated financial statements were prepared in conformity with accounting principles generally accepted in the United States of America ("GAAP") and the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") pertaining to interim financial statements. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Management has determined that the Company operates in one segment: the development of pharmaceutical products on its own behalf or in collaboration with others. The accompanying unaudited condensed consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the financial statements and the notes thereto included in the Company's annual report on Form 10-K for the year ended December 31, 2010. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for the full year. Reclassifications Certain prior year amounts have been reclassified to conform to current year presentation. These changes did not have a significant impact on the Company's net income (loss), assets, liabilities, shareholders' equity (deficit) or cash flows. Estimates and Uncertainties The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Commitments and Contingencies As of the date of this report, the Company is not a party to any material legal proceedings with respect to itself, its subsidiaries, or any of its material properties. In the normal course of business, the Company may from time to time be named as a party to various legal claims, actions and complaints, including matters involving employment, intellectual property, effects from the use of therapeutics utilizing its technology, or others. It is impossible to predict with certainty whether any resulting liability would have a material adverse effect on the Company's financial position, results of operations or cash flows. </div>

1025000

943000

123000

35000

85000

289000

8890000

622000

525000

112993000

19377000

340000

676000

0.0001

20000000

80000

297846000

19000

32348000

117724000

2070000

2363000

304000

39000

40000

298955000

13020000

6931000

32551000

17750000

29461000

27728000

2031000

1862000

-2817000

35149000

Note 9. Equity Financings In December 2007, the Company closed a private equity financing for net proceeds of $14.4 million with several institutional investors. In the private equity financing, the Company sold units consisting of one share of common stock, and one-half warrant to purchase a share of common stock for $1.90 per unit. A total of 10.7 million shares of common stock and warrants for the purchase of 5.3 million shares of common stock at $2.45 per share were sold. These warrants are currently exercisable and expire on December 18, 2012. In January 2009, the Company sold approximately 14.2 million shares of its common stock and also issued warrants to purchase approximately 14.2 million shares of its common stock in an offering registered under the Securities Act. The offering generated net proceeds of approximately $15.5 million. The warrants issued to the investors in the offering have an exercise price of $1.16 per share and are exercisable at any time on or before July 30, 2014. In connection with the offering, the Company also issued to the placement agent a warrant to purchase approximately 427,000 shares of the Company's common stock at an exercise price of $1.45 per share. The warrant issued to the placement agent is exercisable on or before January 30, 2014. In August 2009, the Company sold approximately 24.3 million shares of its common stock and also issued warrants to purchase approximately 9.7 million shares of its common stock in an offering registered under the Securities Act. The offering generated net proceeds of approximately $32.3 million. The warrants issued to the investors in the offering have an exercise price of $1.78 per share and are exercisable at any time on or before August 25, 2014. The warrants issued in connection with the January and August 2009 offerings are classified as a liability due to their settlement terms. Accordingly, the fair value of the warrants is recorded on the consolidated balance sheet as a liability, and such fair value is adjusted at each financial reporting period with the adjustment to fair value reflected in the consolidated statement of operations as described in greater detail in Note 6 — "Warrants." These warrants are non-cash liabilities; the Company is not required to expend any cash to settle these liabilities. In April 2011, the Company sold 23.0 million shares of its common stock at the price of $1.50 per share in an offering registered under the Securities Act. The offering generated gross proceeds of $34.5 million.

110404000

110383000

130018000

138916000

110404000

110383000

123346000

134090000