AGREEMENT WITH HEALTHCOR | NOTE 10 – AGREEMENT WITH HEALTHCOR On April 21, 2011, we entered into a Note and Warrant Purchase Agreement (as subsequently amended) (the “HealthCor Purchase Agreement”) with HealthCor. Pursuant to the terms HealthCor Purchase Agreement, we sold Senior Secured Convertible Notes to HealthCor in the principal amount of $9,316,000 and $10,684,000, respectively (collectively the “2011 HealthCor Notes”). The 2011 HealthCor Notes have a maturity date of April 20, 2021. We also issued Warrants to HealthCor for the purchase of an aggregate of up to 5,488,456 and 6,294,403 shares, respectively, of our Common Stock at an exercise price of $1.40 per share (collectively the “2011 HealthCor Warrants”). So long as no event of default has occurred, the outstanding principal balances of the 2011 HealthCor Notes accrue interest from April 21, 2011 through April 20, 2016 (the “First Five-Year Note Period”) at the rate of 12.5% per annum, compounding quarterly and shall be added to the outstanding principal balances of the 2011 HealthCor Notes on the last day of each calendar quarter. Interest accruing from April 21, 2016 through April 20, 2021 (the “Second Five Year Note Period”) at a rate of 10% per annum, compounding quarterly, may be paid quarterly in arrears in cash or, at our option, such interest may be added to the outstanding principal balances of the 2011 HealthCor Notes on the last day of each calendar quarter. For the period from April 21, 2016 through March 31, 2018 interest has been added to the outstanding principal balance. From the date any event of default occurs, the interest rate, then applicable, shall be increased by five percent (5%) per annum. HealthCor has the right, upon an event of default, to declare due and payable any unpaid principal amount of the 2011 HealthCor Notes then outstanding, plus previously accrued but unpaid interest and charges, together with the interest then scheduled to accrue (calculated at the default rate described in the immediately preceding sentence) through the end of the First Five Year Note Period or the Second Five Year Note Period, as applicable. At any time after April 21, 2011, HealthCor is entitled to convert any portion of the outstanding and unpaid accrued interest on and principal balances of the 2011 HealthCor Notes into fully paid and non-assessable shares of our Common Stock at a conversion rate of $1.25 per share, subject to adjustment in accordance with anti-dilution provisions set forth in the 2011 HealthCor Notes. As of March 31, 2018, the underlying shares of our Common Stock related to the 2011 HealthCor Notes totaled approximately 36,000,000. On January 31, 2012, we entered into the Second Amendment to the HealthCor Purchase Agreement with HealthCor (the “Second Amendment”) amending the HealthCor Purchase Agreement and sold Senior Secured Convertible Notes to HealthCor in the principal amounts of $2,329,000 and $2,671,000, respectively (collectively the “2012 HealthCor Notes”). As provided by the Second Amendment, the 2012 HealthCor Notes are in substantially the same form as the 2011 HealthCor Notes, with changes to the “Issuance Date,” “Maturity Date,” “First Five-Year Note Period” and other terms to take into account the timing of the issuance of the 2012 HealthCor Notes. The 2012 HealthCor Notes have a maturity date of January 30, 2022. In addition, the provisions regarding interest payments, interest acceleration, optional conversion, negative covenants, and events of default, preemptive rights and registration rights are the same as those of the 2011 HealthCor Notes. At any time after January 30, 2012, HealthCor is entitled to convert any portion of the outstanding and unpaid accrued interest on and principal balances of the 2012 HealthCor Notes into fully paid and non-assessable shares of our Common Stock at a conversion rate of $1.25 per share, subject to adjustment in accordance with anti-dilution provisions set forth in the 2012 HealthCor Notes. For the period from January 31, 2017 through March 31, 2018 interest has been added to the outstanding principal balance. As of March 31, 2018, the underlying shares of our Common Stock related to the 2012 HealthCor Notes totaled approximately 8,000,000. On August 20, 2013, we entered into a Third Amendment to the HealthCor Purchase Agreement with HealthCor (the “Third Amendment”) to redefine our minimum cash balance requirements. Previously we were required to maintain a minimum cash balance of $5,000,000 and should we drop below that balance, it triggered a default. The Third Amendment allowed for a reduced minimum cash period, as defined in the HealthCor Purchase Agreement, which allowed us to drop below $5,000,000, but not below $4,000,000. All other terms and conditions of the HealthCor Purchase Agreement, including all amendments thereto, remain the same. Upon entering the reduced minimum cash period (which occurred on October 7, 2013), we had 120 days to return our minimum cash balance to the original $5,000,000. On January 16, 2014, we increased our cash balance to in excess of the original $5,000,000 minimum allowable balance. On January 16, 2014, we entered into a Fourth Amendment to the HealthCor Purchase Agreement with HealthCor (the “Fourth Amendment”) and sold Senior Secured Convertible Notes to HealthCor in the principal amounts of $2,329,000 and $2,671,000 (collectively the “2014 HealthCor Notes”). As provided by the Fourth Amendment, the 2014 HealthCor Notes are in substantially the same form as the 2011 HealthCor Notes, with changes to the “Issuance Date,” “Maturity Date,” “First Five-Year Note Period” and other terms to take into account the timing of the issuance of the 2014 HealthCor Notes. The 2014 HealthCor Notes have a maturity date of January 15, 2024. In addition, the provisions regarding interest payments, interest acceleration, optional conversion, negative covenants, and events of default, preemptive rights and registration rights are the same as those of the 2011 HealthCor Notes. At any time after January 16, 2014, HealthCor is entitled to convert any portion of the outstanding and unpaid accrued interest on and principal balances of the 2014 HealthCor Notes into fully paid and non-assessable shares of our Common Stock at a conversion rate of $0.40 per share, subject to adjustment in accordance with anti-dilution provisions set forth in the 2014 HealthCor Notes. Additionally, we issued Warrants to HealthCor for the purchase of an aggregate of up to 4,000,000 shares of our Common Stock at an exercise price of $0.40 per share (collectively the “2014 HealthCor Warrants”). As of March 31, 2018, the underlying shares of our Common Stock related to the 2014 HealthCor Notes totaled approximately 21,000,000. On December 4, 2014, we entered into a Fifth Amendment to the HealthCor Purchase Agreement (the “Fifth Amendment”) with HealthCor and certain additional investors (such additional investors, the “2015 Investors” and, collectively with HealthCor Partners Fund, LP, the “Investors”) and agreed to sell and issue (i) additional notes in the initial aggregate principal amount of $6,000,000,with a conversion price per share of $0.52 (subject to adjustment as described therein) (the “Fifth Amendment Notes”) and (ii) additional Warrants for an aggregate of up to 3,692,308 shares of our Common Stock at an exercise price per share of $0.52 (subject to adjustment as described therein) (the “Fifth Amendment Warrants”). As provided by the Fifth Amendment, the Fifth Amendment Notes are in substantially the same form as the 2011 HealthCor Notes, with changes to the “Issuance Date,” “Maturity Date,” “First Five-Year Note Period” and other terms to take into account the timing of the issuance of the Fifth Amendment Notes. The Fifth Amendment Notes have a maturity date of February 16, 2025. In addition, the provisions regarding interest payments, interest acceleration, optional conversion, negative covenants, and events of default, preemptive rights and registration rights are the same as those of the 2011 HealthCor Notes. The 2015 Investors are composed of all but one of our current directors and one of our officers. On February 17, 2015, the Company and the Investors closed on the transactions contemplated by the Fifth Amendment. In connection with this closing, the Company and the Investors entered into an Amended and Restated Pledge and Security Agreement (the “Amended Security Agreement”), amending and restating that certain Pledge and Security Agreement dated as of April 20, 2011, and an Amended and Restated Intellectual Property Security Agreement (the “Amended IP Security Agreement”), amending and restating that certain Intellectual Property Security Agreement dated as of April 20, 2011. As of March 31, 2018, the underlying shares of our Common Stock related to the Fifth Amendment Notes totaled approximately 3,000,000 to HealthCor and 14,000,000 to the 2015 Investors. On March 31, 2015, we entered into the Sixth Amendment to the HealthCor Purchase Agreement (the “Sixth Amendment”) pursuant to which, among other things, (i) the requirement to maintain a minimum cash balance of $5,000,000 was reduced to a minimum cash balance of $2,000,000 and (ii) the amendment provision was revised to permit the HealthCor Purchase Agreement to be amended by the Company and the holders of the majority of the Common Stock underlying the outstanding notes and warrants to purchase shares of our Common Stock sold pursuant to the HealthCor Purchase Agreement. On March 31, 2015, we also issued a warrant to HealthCor to purchase up to an aggregate of 1,000,000 shares of our Common Stock in consideration for certain prior waivers of the minimum cash balance requirement in the HealthCor Purchase Agreement (the “Sixth Amendment Warrant”). The Sixth Amendment Warrant has an exercise price per share of $0.53 (subject to adjustment as described therein) and an expiration date of March 31, 2025. On June 26, 2015, we (i) entered into a Seventh Amendment to the HealthCor Purchase Agreement (the “Seventh Amendment”) pursuant to which the HealthCor Purchase Agreement was amended to permit the Company to enter into and perform its obligations under the PDL Credit Agreement (as detailed in NOTE 9 On February 23, 2018, we entered into a Fifth Amendment to the HealthCor Purchase Agreement (the “Eighth Amendment”) with HealthCor and certain additional investors (such additional investors, the “2018 Investors” and, collectively with HealthCor Partners Fund, LP, the “Investors”) and agreed to sell and issue (i) additional notes in the initial aggregate principal amount of $2,050,000,with a conversion price per share of $0.05 (subject to adjustment as described therein) (the “Eighth Amendment Notes”) and (ii) additional Warrants for an aggregate of up to 512,500 shares of our Common Stock at an exercise price per share of $0.05 (subject to adjustment as described therein) (the “Eighth Amendment Warrants”). As provided by the Eighth Amendment, the Eighth Amendment Notes are in substantially the same form as the 2011 HealthCor Notes, with changes to the “Issuance Date,” “Maturity Date,” “First Five-Year Note Period” and other terms to take into account the timing of the issuance of the Fifth Amendment Notes. The Eighth Amendment Notes have a maturity date of February 22, 2028. In addition, the provisions regarding interest payments, interest acceleration, optional conversion, negative covenants, and events of default, preemptive rights and registration rights are the same as those of the 2011 HealthCor Notes. The 2018 Investors are composed of all but one of our current directors, one of our officers and an entity. As of March 31, 2018, the underlying shares of our Common Stock related to the Eighth Amendment Notes totaled approximately 42,000,000 to the 2018 Investors. Accounting Treatment When issuing debt or equity securities convertible into common stock at a discount to the fair value of the common stock at the date the debt or equity financing is committed, a company is required to record a beneficial conversion feature (“BCF”) charge. We had three separate issuances of equity securities convertible into common stock that qualify under this accounting treatment, (i) the 2011 HealthCor Notes, (ii) the 2012 HealthCor Notes and (iii) the 2014 HealthCor Notes. Because the conversion option and the 2011 HealthCor Warrants on the 2011 HealthCor Notes were originally classified as a liability when issued due to the down round provision and the removal of the provision requiring liability treatment, and subsequently reclassified to equity on December 31, 2011 when the 2011 HealthCor Notes were amended, only the accrued interest capitalized as payment in kind (“PIK”) since reclassification qualifies under this accounting treatment. We recorded an aggregate of $849,827 and $733,240 in interest for the three months ended March 31, 2018 and 2017, respectively, related to these transactions. The face amount of the 2012 HealthCor Notes, 2014 HealthCor Notes, the Fifth Amendment Notes and the Eighth Amendment Notes and all accrued PIK interest also qualify for BCF treatment as discussed above. During the three months ended March 31, 2018 and 2017, we recorded a BCF of $31,784 and $63,585, respectively. The BCF was recorded as a charge to debt discount and a credit to additional paid in capital, with the debt discount, using the effective interest method, amortized to interest expense over the term of the notes. As Warrants were issued with the Fifth Amendment Notes, the proceeds were allocated to the instruments based on relative fair value as the warrants did not contain any features requiring liability treatment and therefore were classified as equity. The value allocated to the Fifth Amendment Warrants was $1,093,105, which was recorded as debt discount with the credit to additional paid in capital. We recorded an aggregate of $6,849, and $5,776 in interest for the three months ended March 31, 2018 and 2017, respectively, related to the Fifth Amendment Notes and Fifth Amendment Warrants. The carrying value of the Fifth Amendment Notes at March 31, 2018 approximates fair value as the interest rates used are those currently available to us and would be considered level 3 inputs under the fair value hierarchy. The Warrants issued with the Sixth Amendment also did not contain features requiring liability accounting and were recorded at fair value on the date of issuance with the offsetting credit recorded in equity. The value allocated to the Sixth Amendment Warrant was $378,000, which was recorded as debt costs with the credit to additional paid in capital. We recorded an aggregate of $14,451 in interest for both three month-periods ended March 31, 2018 and 2017. As Warrants were issued with the Eighth Amendment Notes, the proceeds were allocated to the instruments based on relative fair value as the warrants did not contain any features requiring liability treatment and therefore were classified as equity. The value allocated to the Eighth Amendment Warrants was $10,707 and was recorded as interest expense with the credit to additional paid in capital. The carrying value of the Eighth Amendment Notes at March 31, 2018 approximates fair value as the interest rates used are those currently available to us and would be considered level 3 inputs under the fair value hierarchy. |