5. Debt

In December 2018, the Company entered into the Loan Agreement by and among the Company, Nabriva Therapeutics Ireland DAC, and certain other subsidiaries of the Company and Hercules Capital, Inc. (the “Lender”), pursuant to which a term loan of up to an aggregate principal amount of $75.0 million is available to the Company. The Loan Agreement provides for an initial term loan advance of $25.0 million, which was funded in December 2018, and, at the Company’s option and subject to the occurrence of the funding conditions described below and other customary funding conditions, five additional term loan advances comprised of the following; 1) $10.0 million (“Tranche 2 Advance”), 2) $5.0 million (“Tranche 3 Advance”), 3) $10.0 million (“Tranche 4 Advance”), 4) $15.0 million (“Tranche 5 Advance”) and 5) $5.0 million (“Tranche 6 Advance”). The Tranche 2 Advance will be available to the Company through September 30, 2019 upon the approval by the U.S. Food and Drug Administration (“FDA”) of a new drug application (“NDA”) for lefamulin. The Tranche 3 Advance will be available to the Company through September 30, 2019 upon the approval by the FDA of an NDA for CONTEPO. The Tranche 4 Advance will be available to the Company from January 1, 2020 through December 31, 2020 upon the approval by the FDA of NDAs for lefamulin in addition to CONTEPO and upon the achievement of specified product revenue milestones. The Tranche 5 Advance will be available to the Company from July 1, 2020 through June 30, 2021 upon the approval by the FDA of NDAs for lefamulin and CONTEPO and upon the achievement of specified product revenue milestones. The Tranche 6 Advance will be available to the Company from January 1, 2021 through September 30, 2021 upon the approval by the FDA of NDAs for lefamulin and CONTEPO and upon the achievement of specified product revenue milestones. The Company may request a seventh term loan advance of $5.0 million prior to December 31, 2021 subject to the Lender’s sole discretion.

The term loan bears interest at an annual rate equal to the greater of 9.80% or 9.80% plus the prime rate of interest minus 5.50%. The Loan Agreement provides for interest-only payments through July 1, 2020, which may be incrementally extended from time to time upon the occurrence of certain conditions through January 1, 2022, and repayment of the outstanding principal balance of the term loan thereafter in monthly installments through June 1, 2023 (the “Maturity Date”). In addition, the Company is required to pay a fee of 6.95% of the aggregate amount of advances under the Loan Agreement at the Maturity Date (the “End of Term Fee”). At the Company’s option, the Company may elect to prepay any portion of the outstanding term loan that is greater than or equal to $5.0 million by paying such portion of the principal balance and all accrued and unpaid interest thereon plus a prepayment charge equal to the following percentage of the principal amount being prepaid: (i) 3.0% if the term loan is prepaid during the first 12 months following the initial closing, (ii) 2.0% if the term loan is prepaid after 12 months following the initial closing but before 24 months following the initial closing and (iii) 1.0% if the term loan is prepaid any time thereafter but prior to the Maturity Date. The Company is also required to satisfy certain financial covenants, including an obligation to maintain specified minimum amounts of cash and cash equivalents in accounts pledged to Hercules.

The Company’s obligations under the Loan Agreement are guaranteed by all current and future subsidiaries of the Company, and each of the Company and its subsidiaries has granted the Lender a security interest in all of their respective personal property, intellectual property and other assets owned or later acquired. The Loan Agreement also contains certain events of default, representations, warranties and covenants of the Company and its subsidiaries. For example, the Loan Agreement contains representations and covenants that, subject to exceptions, restrict the Company’s and its subsidiaries’ ability to do the following, among things: declare dividends or redeem or repurchase equity interests; incur additional indebtedness and liens; make loans and investments; engage in mergers, acquisitions and asset sales; certain transactions with affiliates; undergo a change in control; add or change business locations or settle in cash potential milestone payment obligations that may become payable by the Company in the future to former security holders of Zavante. Under the terms of the Loan Agreement, the Company and its subsidiaries are also required to satisfy certain financial covenants, including an obligation to maintain specified minimum amounts of cash and cash equivalents in accounts pledged to the Lender.

The Loan Agreement also grants Lender or its nominee an option to purchase up to an aggregate of $2.0 million of the Company’s equity securities, or instruments exercisable for or convertible into equity securities, sold to investors in any private financing upon the same terms and conditions afforded to such other investors for as long as there are amounts outstanding under the Loan Agreement.

The Company incurred $1,290,000 of costs in connection with the Loan Agreement which along with the initial fee of $700,000 paid to the Lender were recorded as debt issuance cost and will be amortized as interest expense using the effective interest method over the term of the loan. The End of Term Fee will also be accrued as additional interest expense using the effective interest method over the term of the loan.

Long-term debt as December 31, 2018 and March 31, 2019 consisted of the following:


	As of		As of
	December 31		March 31
(in thousands)	2018		2019
Term loan payable	$	25,000	$	25,000
End of term fee		—		109
Unamortized debt issuance costs		(1,990)		(1,871)
Carrying value of term loan		23,010		23,238
Other long-term debt		708		707
Total long-term debt	$	23,718	$	23,945

Maturities of long-term debt as of March 31, 2019 were as follows:


(in thousands)
2019	$	—
2020		3,656
2021		8,592
2022		8,704
2023		4,756