11. Sale of Common Stock

September 2013 Registered Direct Offering

On September 20, 2013, the Company entered into a definitive agreement with certain institutional investors for the sale of 932,805 shares of its common stock in a registered direct offering at a price of $2.05 per share (the “Offering”). The Offering was completed on September 25, 2013. Gross proceeds of the Offering were $1,902,922. Net proceeds, after deducting the placement agent fee and Offering costs, were approximately $1.7 million.

Common stock classified outside of stockholders’ equity (deficit)

March 2010 Private Placement

On March 5, 2010, the Company entered into a purchase agreement with certain affiliates of and funds managed by Lansdowne Partners Limited Partnership (“Lansdowne”), Greenway Capital Partners and Paragon Associates for the private placement of 3,005,349 newly-issued shares of the Company’s common stock at a per share price of $1.31. The closing of the sale of the shares occurred on March 5, 2010. In connection with the acquisition of the shares, the purchasers were granted certain preemptive rights permitting them to maintain their percentage ownership interests in connection with future issuances of the Company’s capital stock, subject to various exceptions and limitations. Lansdowne participated in the private placement by electing to exercise the preemptive rights granted to it pursuant to the purchase agreement by and between the Company and Lansdowne, dated July 22, 2009. Net proceeds received from this financing were approximately $3,879,403.

In connection with the private placement, the Company also entered into a registration rights agreement, dated March 5, 2010, with the purchasers pursuant to which it agreed to file, within 45 days of the closing of the private placement, a registration statement with the SEC to register the shares for resale, which registration statement was required to become effective within 120 days following the closing. The Company also granted certain "piggyback" registration rights to the purchasers which are triggered if the Company proposes to file a registration statement for its own account or the account of one or more shareholders until the earlier of the sale of all of the shares or the shares becoming eligible for sale under Rule 144(b)(1) without restriction.

Pursuant to the registration rights agreement, dated March 5, 2010, the Company filed a registration statement with the SEC to register the 3,005,349 shares sold to Lansdowne, Greenway and Paragon for resale, which became effective on May 19, 2010 and which registration statement remained effective as of September 30, 2013.

Under the registration rights agreements with the purchasers, the Company is obligated to use commercially reasonable efforts to (i) cause the registration statement described above to remain continuously effective and (ii) to maintain the listing of the Company’s common stock on NASDAQ or other exchanges, as defined, for a period that will terminate on the earlier of March 5, 2013 or the date on which the purchasers have sold all shares of common stock. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). In the event the Company fails to satisfy its obligations under the registration rights agreements, the Company would be in breach of said agreements, in which event, the purchases would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. These registration rights agreements do not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of these registration rights agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangements and (ii) complying with all filing requirements under the Exchange Act as described above is not solely within the Company’s control, the Company is required to present the investment of approximately $3,879,403 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities.

On January 18, 2012, the Company removed the restrictions on 3,658,676 shares purchased by Lansdowne, of which 600,769 related to this offering, and reclassified the shares to common stock from common stock classified outside of equity (deficit). On March 5, 2013, the Company reclassified the remaining shares of common stock from this offering to common stock from common stock classified outside of equity (deficit). Therefore, as of December 31, 2012 and September 30, 2013, a total of $3,092,396 and $0 of common stock was classified outside of stockholders’ equity (deficit), respectively.

February 2012 Private Placement

On February 2, 2012, the Company entered into purchase agreements with various investors (collectively, the “February Investors”) for the private placement of an aggregate of 5,257,267 newly-issued shares of the Company’s common stock (the “February Shares”) at a purchase price of $1.50 per share (the “February 2012 Private Placement”). Net cash proceeds raised in the February 2012 Private Placement were approximately $7,822,000. The February Investors participating in the February 2012 Private Placement were various institutions and all the then current officers and directors of the Company. The final closing of the February 2012 Private Placement (the “February Closing”) occurred on February 2, 2012.

In connection with the February 2012 Private Placement, the Company also entered into registration rights agreements, each dated February 2, 2012, with the February Investors pursuant to which the Company agreed to file, within 90 days of the February Closing, a registration statement with the SEC to register the February Shares for resale, which registration statement was required to become effective within 180 days following the February Closing. The Company also granted the February Investors certain “piggyback” registration rights, which are triggered if the Company proposes to file a registration statement for its own account or the account of one or more shareholders until the earlier of the sale of all of the February Shares or the February Shares becoming eligible for sale under Rule 144(b)(1) without restriction.

Pursuant to the registration rights agreements dated February 2, 2012, the Company filed a registration statement with the SEC on April 30, 2012, to register the February Shares for resale. This registration statement became effective on May 17, 2012 and remained effective as of September 30, 2013.

Under the registration rights agreements with the February Investors, the Company is obligated to use commercially reasonable efforts to (i) cause the registration statement described above to remain continuously effective and (ii) to maintain the listing of the Company’s common stock on NASDAQ or other exchanges, as defined, for a period that will terminate on the earlier of February 2, 2013, the date on which the February Investors have sold all covered registrable securities or the date on which there are no longer any covered registrable securities outstanding. The Company is also required to file with the SEC in a timely manner all reports and other documents required of the Company under the Exchange Act. In the event the Company fails to satisfy its obligations under the registration rights agreements, the Company would be in breach of said agreements, in which event, the February Investors would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. These registration rights agreements do not provide an explicitly stated or defined penalty due upon a breach. Because (i) the potential penalty for any breach of these registration rights agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangements and (ii) complying with all filing requirements under the Exchange Act as described above is not solely within the Company’s control, the Company was required to present the investment of approximately $7,885,900 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities.

As of March 31, 2013, the Company has reclassified all of the February Shares to common stock from common stock classified outside of equity (deficit). Therefore, as of December 31, 2012 and September 30, 2013, a total of $3,183,328 and $0 of common stock was classified outside of stockholders’ equity (deficit), respectively.

September 2012 Private Placement

On September 13, 2012, the Company entered into a purchase agreement (the “Purchase Agreement”) with Glaxo Group Limited, an affiliate of GSK (the “GSK Investor”) and two existing investors, Swiftcurrent Partners, L.P. and Swiftcurrent Offshore, Ltd. (collectively with the GSK Investor, the “September Investors”) for the private placement of an aggregate of 8,000,000 newly-issued shares of the Company’s common stock (the “September Shares”) at a purchase price of $1.10 per share (the “September 2012 Private Placement”). The Company raised gross cash proceeds of $8,800,000 in the September 2012 Private Placement, which closed on September 13, 2012 (the “Closing”).

Pursuant to the Purchase Agreement, for so long as the GSK Investor or its affiliates own at least 50% of the September Shares it purchased pursuant to the Purchase Agreement, the GSK Investor has the right to designate one non-voting board observer (the "Board Observer"). The Board Observer, if appointed, has the right to attend all meetings of the Board of Directors of the Company and to receive all board meeting materials, subject to certain restrictions set forth in the Purchase Agreement. As of the date hereof, the GSK Investor has not exercised its right to designate the Board Observer.

In connection with the September 2012 Private Placement, the Company also entered into a registration rights agreement, dated September 13, 2012 (the “September Registration Rights Agreement”), with the September Investors pursuant to which the Company agreed to file, within 45 days of the Closing, a registration statement with the SEC to register the September Shares for resale, which registration statement was required to become effective within 180 days following the Closing. The Company also granted the September Investors certain “piggyback” registration rights, which are triggered if the Company proposes to file a registration statement for its own account or the account of one or more stockholders until the earlier of the sale of all of the September Shares or the September Shares becoming eligible for sale under Rule 144(b)(1) without restriction.

Under the September Registration Rights Agreement, the Company is obligated to use commercially reasonable efforts to cause a registration statement to become effective and to remain continuously effective and to maintain the listing of the covered common stock on NASDAQ or other exchanges, as defined, for a period that will terminate upon the earlier of (i) the date on which all Registrable Securities covered by such Registration Statement as amended from time to time, have been sold, (ii) the date on which there are no longer any Registrable Securities outstanding or (iii) three years from the date of filing of such Registration Statement (the “Effectiveness Period”) and advise each September Investor in writing when the Effectiveness Period has expired. “Registrable Securities” means (i) the September Shares and (ii) shares of capital stock or any other securities issued or issuable with respect to or in exchange for the September Shares; provided, that, a security shall cease to be a Registrable Security with respect to a September Investor upon (A) sale by such September Investor pursuant to a registration statement or Rule 144 under the Securities Act of 1933, or (B) such security becoming eligible for sale by such September Investor without restriction pursuant to Rule 144(b)(1). In the event the Company fails to satisfy its obligations under the September Registration Rights Agreement, the Company would be in breach of such agreement, in which event, the September Investors would be entitled to pursue all rights and remedies at law or equity including an injunction or other equitable relief. The September Registration Rights Agreement does not provide an explicitly stated or defined penalty due upon a breach. Because the potential penalty for any breach of these registration rights agreement is not explicitly stated or defined, which prohibits the Company from applying the guidance of ASC 825-20-15, Registration Payment Arrangements, the Company was required to present the investment of approximately $8,800,000 in the Company’s common stock as common stock outside of stockholders’ equity in the accompanying consolidated balance sheet under ASC 480-10-S99-3, Classification and Measurement of Redeemable Securities.

Pursuant to the September Registration Rights Agreement, the Company filed a registration statement with the SEC on October 26, 2012, to register the September Shares for resale. This registration statement became effective on November 13, 2012 and remained effective as of September 30, 2013.

As of December 31, 2012, the Company has removed the restriction on 3,000,000 of the 8,000,000 September Shares and reclassified the shares to common stock from common stock classified outside of stockholders’ equity (deficit). Therefore, as of December 31, 2012 and September 30, 2013, a total of $5,500,000 of common stock relating to the 5,000,000 remaining restricted September Shares was classified outside of stockholders’ equity (deficit).

Activity in common stock classified outside of stockholders’ equity (deficit) was as follows:

	Number of Shares		Amount
Balance, December 31, 2012		9,561,847	$	11,775,724
Issuance of common stock classified outside of stockholders’ equity (deficit)		-		-
Reclassificiation to stockholders’ equity (deficit), excluding offering costs of $110,179 offset against paid-in capital		(4,561,847)		(6,275,724)
Balance, September 30, 2013 (unaudited)		5,000,000	$	5,500,000