10. Offerings of Common Stock

August 2013 Issuance of Registered Shares of Common Stock of the Company as Part of the Acquisition of the Pathwork Diagnostics, Inc. Assets

On August 23, 2013, the Company entered into an asset purchase agreement (the “Pathwork Purchase Agreement”) with Pathwork (assignment for the benefit of creditors), LLC (“Seller”), pursuant to which the Company acquired substantially all of the assets of Pathwork Diagnostics, Inc. (“Pathwork”), which had previously assigned all of its assets to Seller for the benefit of its creditors pursuant to a General Assignment, dated as of April 2, 2013. Pursuant to the Pathwork Purchase Agreement, the Company acquired the Pathwork assets for the following consideration: (i) an aggregate of 500,000 newly-issued registered shares of the Company’s common stock valued at $1.96 per share, or $980,000, issued to two senior secured creditors of Pathwork which were designated by Seller in the Pathwork Purchase Agreement and (ii) a cash payment of $200,000 to Seller.

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 "September 2013 Offering"). The September 2013 Offering was completed on September 25, 2013. Gross proceeds of the September 2013 Offering were $1,912,250. Net proceeds, after deducting the placement agent fee and the September 2013 Offering costs, were approximately $1.7 million.

December 2013 Underwritten Public Offering

On December 13, 2013, the Company entered into an underwriting agreement with National Securities Corporation (the "Underwriter"), pursuant to which the Underwriter agreed to purchase 4,464,443 shares of the Company's common stock (the "Shares") at the public offering price of $1.20 per share less an underwriting discount of 5%. The Shares were offered and sold by the Company pursuant to an effective registration statement on Form S-3 (File No. 333-171266) filed by the Company with the Securities and Exchange Commission on December 17, 2010, as amended, as supplemented by the prospectus supplement dated December 13, 2013 relating to the offering and the accompanying prospectus (the "December 2013 Offering"). The December 2013 Offering was completed on December 13, 2013. Gross proceeds of the December 2013 Offering were $5,357,332. Net proceeds, after deducting the placement agent fee and the December 2013 Offering costs, were approximately $4.8 million.

July 2014 and February 2015 Issuance of Warrants in Connection with the SWK Credit Facility

On July 30, 2014 (the “Closing Date”), the Company entered into a credit agreement (the “SWK Credit Agreement”) with SWK Funding LLC, as the administrative agent (the “Agent” or “SWK”), and the lenders (including SWK) party thereto from time to time (the “Lenders”). The SWK Credit Agreement provides for a multi-draw term loan to the Company (the “Loan”) up to a maximum principal amount of $12,000,000 (the “Loan Commitment Amount”). On the Closing Date, the Lenders advanced the Company an amount equal to $8,500,000 which is due and payable on July 30, 2020 (the “Term Loan Maturity Date”) or such earlier date on which the Loan Commitment Amount is terminated pursuant to the terms of the SWK Credit Agreement. On February 3, 2015 (the “Amendment Closing Date”), the Company and SWK entered into a first amendment (the “Amendment”) to the SWK Credit Agreement. Pursuant to the Amendment, the Company drew an additional $1,500,000 of the Loan Commitment Amount increasing the total amount advanced to the Company under the SWK Credit Agreement to $10,000,000.

On the Closing Date, the Company issued to the Agent a warrant (the “Initial Warrant”) to purchase up to 681,090 shares of the Company's common stock. The Initial Warrant was exercisable, in whole or in part, from the date of issuance until and including July 30, 2020 at an exercise price of $0.936 per share, and was subject to customary adjustments for stock splits, stock dividends, recapitalizations and the like. The relative fair value of the Initial Warrant was $377,140, or approximately $0.55 per covered share, using a Black-Scholes pricing model with the following assumptions: 2.01% risk free rate, 0% dividend, 101.5% volatility, and six-year expected life. The value of the warrant was recorded on the balance sheet included in additional paid-in capital. On September 9, 2014, the Agent assigned a portion of the Initial Warrant consisting of the right to purchase 200,321 shares of common stock to SG (the “SG Initial Warrant”). On January 30, 2015, SG assigned the SG Initial Warrant back to the Agent and on the Amendment Closing Date, the Company replaced the Initial Warrant to purchase the total 681,090 shares of the Company’s common stock with a new warrant with an adjusted exercise price (the “Replacement Warrant”). The Replacement Warrant is exercisable up to and including July 30, 2020 at an exercise price of $0.39 per share. The Agent may exercise the Replacement Warrant on a cashless basis at any time. In the event the Agent exercises the Replacement Warrant on a cashless basis, the Company will not receive any proceeds. The exercise price of the Replacement Warrant is subject to customary adjustments for stock splits, stock dividends, recapitalizations and the like.

In addition, on the Amendment Closing Date, the Company issued the Agent a new warrant (the “First Amendment Warrant”) to purchase 576,923 shares of Common Stock. The First Amendment Warrant is exercisable up to and including February 3, 2021 at an exercise price of $0.39 per share, subject to adjustment. The Agent may exercise the First Amendment Warrant on a cashless basis at any time. In the event the Agent exercises the First Amendment Warrant on a cashless basis, the Company will not receive any proceeds. The exercise price of the First Amendment Warrant is subject to customary adjustments for stock splits, stock dividends, recapitalizations and the like.

Common stock classified outside of stockholders’ equity (deficit)

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”).

In connection with the February 2012 Private Placement, the Company also entered into registration rights agreements, each dated February 2, 2012, pursuant to which the Company agreed to file, within 90 days of the closing, a registration statement with the SEC to register the February Shares for resale, which registration statement is required to become effective within 180 days following the 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.

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 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 removed the restrictions on all of the February Shares and reclassified all of the February Shares to common stock from common stock classified outside of equity (deficit).

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”).

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”), 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 is 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.

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 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 December 31, 2012, the Company had 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). As of June 30, 2014, the restriction was eligible for removal from the remaining 5,000,000 September Shares and therefore, the Company reclassified the shares to common stock from common stock classified outside of stockholders’ equity (deficit). Therefore, as of December 31, 2013 and 2014, a total of $5,500,000 and $-0- of common stock was classified outside of stockholders’ equity (deficit) related to the September Shares.

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

	Number of Shares	Amount
Balance, January 1, 2013	9,561,847	$	11,775,724
Issuance of common stock classified outside of stockholders’ equity (deficit)	—		—
Reclassification to stockholders’ equity (deficit)	(4,561,847)		(6,275,724)
Balance, December 31, 2013	5,000,000	$	5,500,000
Issuance of common stock classified outside of stockholders’ equity (deficit)	—		—
Reclassification to stockholders’ equity (deficit)	(5,000,000)		(5,500,000)
Balance, December 31, 2014	—	$	—