8. Long-Term Debt

Novartis Note

In May 2005, the Company executed a secured note agreement (the “Note Agreement”) with Novartis AG (“Novartis”), which was 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 $50.0 million in aggregate principal amount. Interest on the principal amount of the loan accrued at six-month LIBOR plus 2%, which was equal to 2.93% at June 30, 2016 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 could be added to the outstanding principal amount, in lieu of a cash payment, as long as the aggregate principal amount did not exceed $50.0 million. The Company made this election for all interest payments. Loans under the Note Agreement were secured by the Company’s interest in its collaboration with Novartis, including any payments owed to it thereunder. Pursuant to the terms of the arrangement as restructured in November 2008, the Company did not make any additional borrowings under the Novartis note.

In June 2015, the Company and Novartis Vaccines and Diagnostics, Inc. (“NVDI”) agreed to extend the maturity date of the Note Agreement from June 21, 2015, to September 30, 2015 (the “June 2015 Extension Letter”). On September 30, 2015, concurrent with the execution of a license agreement with Novartis International Pharmaceutical Ltd., XOMA and NVDI executed an amendment to the June 2015 Extension Letter (the “Secured Note Amendment”). Pursuant to the Secured Note Amendment, the parties further extended the maturity date of the June 2015 Extension Letter from September 30, 2015 to September 30, 2020, and eliminated the mandatory prepayment previously required to be made with certain proceeds of pre-tax profits and royalties. In addition, upon achievement of a specified development and regulatory milestone, the then-outstanding principal amount of the note will be reduced by $7.3 million rather than the Company receiving such amount as a cash payment. All other terms of the original Note Agreement remain unchanged.

As of June 30, 2016 and December 31, 2015, the outstanding principal balance under this Secured Note Amendment was $13.9 million and $13.7 million, respectively, and was included in interest bearing obligations – long term in the accompanying consolidated balance sheets.

Servier Loan Agreement

In December 2010, in connection with the 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 gevokizumab and its use in 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 has been reset semi-annually ranging from 1.95% to 3.83%. Interest for the six-month period from mid-July 2015 through mid-January 2016 was reset to 2.05%. Interest for the six-month period from mid-January 2016 through mid-July 2016 was reset to 1.95%. Interest is payable semi-annually.

On January 9, 2015, Servier and the Company entered into Amendment No. 2 (“Loan Amendment”) to the Servier Loan Agreement initially entered into on December 30, 2010 and subsequently amended by a Consent, Transfer, Assumption and Amendment Agreement entered into as of August 12, 2013. The Loan Amendment extended the maturity date of the loan from January 13, 2016 to three tranches of principal to be repaid as follows: €3.0 million on January 15, 2016, €5.0 million on January 15, 2017, and €7.0 million on January 15, 2018. All other terms of the Loan Agreement remain unchanged. The loan will be immediately due and payable upon certain customary events of default. In January 2016, the Company made payments of €3.0 million in principal and €0.2 million in accrued interest to Servier.

Upon initial issuance, the loan had 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 carrying value of the loan amount, at its 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 Agreement, the Company recorded the offset to this discount as deferred revenue.

The loan discount is amortized to interest expense under the effective interest method over the remaining life of the loan. The loan discount balance at the time of the Loan Amendment was $1.9 million, which is being amortized over the remaining term of the Loan Amendment.  The Company recorded non-cash interest expense resulting from the amortization of the loan discount of $0.2 million and $0.2 million, for the three months ended June 30, 2016 and 2015, respectively. The Company recorded non-cash interest expense resulting from the amortization of the loan discount of $0.3 million and $0.3 million, for the six months ended June 30, 2016 and 2015, respectively. At June 30, 2016 and December 31, 2015, the net carrying value of the loan was $12.6 million and $15.3 million, respectively. For the three and six months ended June 30, 2016, the Company recorded an unrealized foreign exchange loss of $17,000 and an unrealized foreign exchange gain of $20,000, respectively, related to the re-measurement of the loan discount. For the three and six months ended June 30, 2015, the Company recorded an unrealized foreign exchange gain of $35,000 and an unrealized foreign exchange loss of $0.2 million, respectively, related to the re-measurement of the loan discount.

On September 28, 2015, Servier terminated the Collaboration Agreement with the required 180-day notice and none of the acceleration clauses were triggered; therefore, the termination of the Collaboration Agreement had no impact on the loan balance.  The outstanding principal balance under this loan was $13.3 million and $16.4 million, using a euro to US dollar exchange rate of 1.110 and 1.091, as of June 30, 2016 and December 31, 2015, respectively. The Company recorded an unrealized foreign exchange gain of $0.3 million and an unrealized foreign exchange loss of $0.2 million for the three and six months ended June 30, 2016, respectively, related to the re-measurement of the loan. The Company recorded an unrealized foreign exchange loss of $0.4 million and an unrealized foreign exchange gain of $1.6 million for the three and six months ended June 30, 2015, respectively, related to the re-measurement of the loan.  

Hercules Term Loan

On February 27, 2015 (“Closing Date”), the Company entered into a Loan and Security Agreement with Hercules Technology Growth Capital, Inc. (the “Hercules Term Loan”).  The Hercules Term Loan has a variable interest rate that is the greater of either (i) 9.40% plus the prime rate as reported from time to time in The Wall Street Journal minus 7.25%, or (ii) 9.40%. The payments under the Hercules Term Loan were interest only until June 1, 2016. The interest-only period is followed by equal monthly payments of principal and interest amortized over a 30-month schedule through the scheduled maturity date of September 1, 2018. As security for its obligations under the Hercules Term Loan, the Company granted a security interest in substantially all of its existing and after-acquired assets, excluding its intellectual property assets.

If the Company prepays the loan prior to the loan maturity date, it will pay Hercules a prepayment charge, based on a prepayment fee equal to 3.00% of the amount prepaid, if the prepayment occurs in any of the first 12 months following the Closing Date, 2.00% of the amount prepaid, if the prepayment occurs after 12 months from the Closing Date but prior to 24 months from the Closing Date, and 1.00% of the amount prepaid if the prepayment occurs after 24 months from the Closing Date. The Hercules Term Loan includes customary affirmative and restrictive covenants, but does not include any financial maintenance covenants, and also includes standard events of default, including payment defaults. Upon the occurrence of an event of default, a default interest rate of an additional 5% may be applied to the outstanding loan balances, and Hercules may declare all outstanding obligations immediately due and payable and take such other actions as set forth in the Hercules Term Loan.

The Company incurred debt issuance costs of $0.5 million in connection with the Hercules Term Loan. The Company will be required to pay a final payment fee equal to $1.2 million on the maturity date, or such earlier date as the term loan is paid in full. The debt issuance costs and final payment fee are being amortized and accreted, respectively, to interest expense over the term of the loan using the effective interest method. The Company recorded non-cash interest expense resulting from the amortization of the debt issuance costs and accretion of the final payment of $0.2 million and $0.3 million for the three and six months ended June 30, 2016, respectively. The Company recorded non-cash interest expense resulting from the amortization of the debt issuance costs and accretion of the final payment of $0.1 million and $0.2 million for the three and six months ended June 30, 2015, respectively.

In connection with the Hercules Term Loan, the Company issued unregistered warrants that entitle Hercules to purchase up to an aggregate of 181,268 unregistered shares of XOMA common stock at an exercise price equal to $3.31 per share. These warrants were exercisable immediately and have a five-year term expiring in February 2020. The Company allocated the aggregate proceeds of the Hercules Term Loan between the warrants and the debt obligation. The estimated fair value of the warrants issued to Hercules of $0.5 million was determined using the Black-Scholes Model and was recorded as a discount to the debt obligation.  The debt discount is being amortized over the term of the loan using the effective interest method. The warrants are classified in stockholders’ deficit on the condensed consolidated balance sheets. As of June 30, 2016, all of these warrants were outstanding.

The Company evaluated the Hercules Term Loan in accordance with accounting guidance for derivatives and determined there was de minimis value to the identified derivative features of the loan at inception and June 30, 2016.

As of June 30, 2016 and December 31, 2015, the outstanding principal balance of the Hercules Term Loan was $20.0 million. At June 30, 2016 and December 31, 2015, the net carrying value of the Hercules Term Loan was $20.0 million and $19.7 million, respectively.

Aggregate future principal, final payment fees and discounts of the Company’s total interest bearing obligations as of June 30, 2016, are as follows (in thousands):

Interest Expense

Amortization of debt issuance costs and discounts are included in interest expense. Interest expense in the condensed consolidated statements of comprehensive loss relates to the following debt instruments (in thousands):