5.  Long-Term Debt and Other Financings

Novartis Note

In May 2005, the Company executed a secured note agreement with Novartis (then Chiron Corporation), which is due and payable in full in June 2015. Under the note agreement, the Company borrowed semi-annually to fund up to 75% of the Company's research and development and commercialization costs under its collaboration arrangement with Novartis, not to exceed $50 million in aggregate principal amount. Interest on the principal amount of the loan accrues at six-month LIBOR plus 2%, which was equal to 2.27% at June 30, 2014, and is payable semi-annually in June and December of each year. Additionally, the interest rate resets in June and December of each year. At the Company's election, the semi-annual interest payments can be added to the outstanding principal amount, in lieu of a cash payment, as long as the aggregate principal amount does not exceed $50 million. The Company has made this election for all interest payments thus far. Loans under the note agreement are secured by the Company's interest in its collaboration with Novartis, including any payments owed to it thereunder.

At June 30, 2014 and December 31, 2013, the outstanding principal balance under this note agreement was $13.2 million and $14.8 million, respectively. Pursuant to the terms of the arrangement as restructured in November 2008, the Company will not make any additional borrowings under the Novartis note. Pursuant to the its obligations under the collaboration with Novartis, in January 2014, the Company made a payment, equal to 25 percent of a $7.0 million milestone it received in December 2013, or $1.75 million, toward its outstanding debt obligation to Novartis.

Servier Loan

In December 2010, in connection with the license and collaboration agreement entered into with Servier, the Company executed a loan agreement with Servier (the "Servier Loan Agreement"), which provided for an advance of up to €15.0 million. The loan was fully funded in January 2011, with the proceeds converting to approximately $19.5 million. The loan is secured by an interest in XOMA's intellectual property rights to all gevokizumab indications worldwide, excluding certain rights in the U.S. and Japan. Interest is calculated at a floating rate based on a Euro Inter-Bank Offered Rate ("EURIBOR") and subject to a cap. The interest rate is reset semi-annually in January and July of each year. The interest rate for the initial interest period was 3.22% and was reset semi-annually ranging from 2.31% to 3.83%. Interest for the six-month period from January 2014 through July 2014 was reset to 2.39%. Interest for the six-month period from July 2014 through January 2015 was reset to 2.31%. Interest is payable semi-annually; however, the Servier Loan Agreement provided for a deferral of interest payments over a period specified in the agreement. During the deferral period, accrued interest was added to the outstanding principal amount for the purpose of interest calculation for the next six-month interest period. On the repayment commencement date, all unpaid and accrued interest was paid to Servier and thereafter, all accrued and unpaid interest shall be due and payable at the end of each six-month period. In January 2014, the Company paid $1.9 million in accrued interest to Servier.

The loan matures in 2016; however, after a specified period prior to final maturity, the loan is to be repaid (i) at Servier's option, by applying up to a significant percentage of any milestone or royalty payments owed by Servier under the Company's collaboration agreement and (ii) using a significant percentage of any upfront, milestone or royalty payments the Company receives from any third party collaboration or development partner for rights to gevokizumab in the U.S. and/or Japan.  In addition, the loan becomes immediately due and payable upon certain customary events of default. At June 30, 2014 and December 31, 2013, the outstanding principal balance under this loan was $20.5 million and $20.6 million, respectively, using the June 30, 2014 Exchange Rate of 1.3645 and the December 31, 2013 Exchange Rate of 1.3766. For both the three and six months ended June 30, 2014, the Company recorded an unrealized foreign exchange gains of $0.2 million related to the re-measurement of the loan. For the three and six months ended June 30, 2013, the Company recorded an unrealized foreign exchange loss of $0.3 million and an unrealized foreign exchange gain of $0.3 million, respectively, related to the re-measurement of the loan.

The loan has a stated interest rate lower than the market rate based on comparable loans held by similar companies, which represents additional value to the Company. The Company recorded this additional value as a discount to the face value of the loan amount, resulting in a fair value of $8.9 million. The fair value of this discount, which was determined using a discounted cash flow model, represents the differential between the stated terms and rates of the loan, and market rates. Based on the association of the loan with the collaboration arrangement, the Company recorded the offset to this discount as deferred revenue.

The loan discount is amortized under the effective interest method over the expected five-year life of the loan.  The Company recorded non-cash interest expense of $0.5 million and $0.9 million in the three and six months ended June 30, 2014, respectively, and $0.4 million and $0.8 million in the three and six months ended June 30, 2013, respectively, resulting from the amortization of the loan discount. At June 30, 2014 and December 31, 2013, the net carrying value of the loan was $17.3 million and $16.5 million, respectively. For the three and six months ended June 30, 2014, the Company recorded unrealized foreign exchange losses of $0.1 million related to the re-measurement of the loan discount, compared to an unrealized foreign exchange gain of $0.1 million and an unrealized foreign exchange loss of $0.1 million, for the same periods in 2013.

The Company believes realization of the benefit and the associated deferred revenue is contingent on the loan remaining outstanding over the five-year contractual term of the loan. If the Company were to stop providing service under the collaboration arrangement and the arrangement is terminated, the maturity date of the loan would be accelerated and a portion of measured benefit would not be realized. As the realization of the benefit is contingent, in part, on the provision of future services, the Company is recognizing the deferred revenue over the expected five-year life of the loan. The deferred revenue is amortized under the effective interest method, and the Company recorded $0.5 million and $0.9 million of related non-cash revenue during the three and six months ended June 30, 2014, respectively, compared to $0.4 million and $0.8 million for the same periods of 2013.

General Electric Capital Corporation Term Loan

In December 2011, the Company entered into a loan agreement (the "GECC Loan Agreement") with General Electric Capital Corporation ("GECC"), under which GECC agreed to make a term loan in an aggregate principal amount of $10 million (the "Term Loan") to the Company, and upon execution of the GECC Loan Agreement, GECC funded the Term Loan. As security for its obligations under the GECC Loan Agreement, the Company granted a security interest in substantially all of its existing and after-acquired assets, excluding its intellectual property assets (such as those relating to its gevokizumab and anti-botulism products). The Term Loan accrued interest at a fixed rate of 11.71% per annum and was to be repaid over a period of 42 consecutive equal monthly installments of principal and accrued interest and was due and payable in full on June 15, 2015. The Company incurred debt issuance costs of approximately $1.3 million in connection with the Term Loan and was required to pay a final payment fee equal to $500,000 on the maturity date, or such earlier date as the Term Loan is paid in full. The debt issuance costs and final payment fee were being amortized and accreted, respectively, to interest expense over the term of the Term Loan using the effective interest method.

In connection with the GECC Loan Agreement, the Company issued to GECC unregistered warrants that entitle GECC to purchase up to an aggregate of 263,158 unregistered shares of XOMA common stock at an exercise price equal to $1.14 per share. These warrants are exercisable immediately and have a five-year term. The Company allocated the aggregate proceeds of the GECC Term Loan between the warrants and the debt obligation based on their relative fair values.  The fair value of the warrants issued to GECC was determined using the Black-Scholes Model. The warrants' fair value of $0.2 million was recorded as a discount to the debt obligation and is being amortized over the term of the loan using the effective interest method.

In September 2012, The Company entered into an amendment to the GECC Loan Agreement providing for an additional term loan in the amount of $4.6 million, increasing the term loan obligation to $12.5 million (the "Amended Term Loan") and providing for an interest-only monthly repayment period following the effective date of the amendment through March 1, 2013, at a stated interest rate of 10.9% per annum. Thereafter, the Company is obligated to make monthly principal payments of $347,222, plus accrued interest, over a 27-month period commencing on April 1, 2013, and through June 15, 2015, at which time the remaining outstanding principal amount of $3.1 million, plus accrued interest, is due.  The Company incurred debt issuance costs of approximately $0.2 million and is required to make a final payment fee in the amount of $875,000 on the date upon which the outstanding principal amount is required to be repaid in full.  This final payment fee replaced the original final payment fee of $500,000. The debt issuance costs and final payment fee are being amortized and accreted, respectively, to interest expense over the term of the Amended Term Loan using the effective interest method.

In connection with the amendment, on September 27, 2012 the Company issued to GECC unregistered stock purchase warrants, which entitle GECC to purchase up to an aggregate of 39,346 shares of XOMA common stock at an exercise price equal to $3.54 per share. These warrants are exercisable immediately and have a five-year term. The warrants' fair value of $0.1 million was recorded as a discount to the debt obligation and is being amortized over the term of the loan using the effective interest method. The warrants are classified in permanent equity on the condensed consolidated balance sheets.

The Amended Term Loan does not change the remaining terms of the GECC Loan Agreement. The GECC Loan Agreement contains customary representations and warranties and customary affirmative and negative covenants, including restrictions on the ability to incur indebtedness, grant liens, make investments, dispose of assets, enter into transactions with affiliates and amend existing material agreements, in each case subject to various exceptions. In addition, the GECC Loan Agreement contains customary events of default that entitle GECC to cause any or all of the indebtedness under the GECC Loan Agreement to become immediately due and payable. The events of default include any event of default under a material agreement or certain other indebtedness.

The Company may prepay the Amended Term Loan voluntarily in full, but not in part, and any voluntary and certain mandatory prepayments are subject to a prepayment premium of 3% in the first year after the effective date of the loan amendment, 2% in the second year and 1% thereafter, with certain exceptions.  The Company will also be required to pay the $875,000 final payment fee in connection with any voluntary or mandatory prepayment. On the effective date of the loan amendment, the Company paid an accrued final payment fee in the amount of $0.2 million relating to the original final payment fee of $500,000.

At June 30, 2014 and December 31, 2013, the outstanding principal balance under the Amended Term Loan was $7.3 million and $9.4 million, respectively.

Interest Expense

Interest expense and amortization of debt issuance costs and discounts, recorded as other expense in the condensed consolidated statements of comprehensive loss for the three and six months ended June 30, 2014 and 2013 are shown below (in thousands):