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Long-Term Debt, Net
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Long-term Debt Long-Term Debt, Net
Convertible Notes
In November 2019, we completed the sale of $460.0 million in aggregate principal amount of 1.25% Convertible Senior Notes due 2024 (“Convertible Notes”) in a private placement to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (“Securities Act”). The Convertible Notes were issued under an indenture, dated as of November 18, 2019, (“Indenture”) with The Bank of New York Mellon Trust Company, N.A., as trustee. The offer and sale of the Convertible Notes and the shares of common stock issuable upon conversion of the Convertible Notes have not been registered under the Securities Act, or the securities laws of any other jurisdiction, and the Convertible Notes and such shares may not be offered or sold absent registration or an applicable exemption from registration requirements, or in a transaction not subject to, such registration requirements.
We received net proceeds from the offering of approximately $447.4 million. We used $200.0 million of the net proceeds from the offering to repurchase shares of common stock, including approximately $143.1 million to repurchase approximately 8.1 million shares of common stock concurrently with the offering in privately negotiated transactions, $6.9 million in open market purchases and $50.0 million to repurchase a total of approximately 2.6 million shares of common stock through an accelerated share repurchase agreement.
We used approximately $26.1 million of the net proceeds from the offering to repay all outstanding amounts under its loan agreement with Oxford Finance and Silicon Valley Bank and intend to use the remainder of the net proceeds for general corporate purposes, including additional share repurchases subsequent to the offering and working capital.
The Convertible Notes will pay interest semi-annually in arrears on June 1st and December 1st of each year, beginning on June 1, 2020, at an annual rate of 1.25% and will be convertible into cash, shares of common stock or a combination of cash and shares of common stock, at our election, based on the applicable conversion rate at such time. The Convertible Notes are general unsecured obligations and will rank senior in right of payment to all indebtedness that is expressly subordinated in right of payment to the Convertible Notes, will rank equally in right of payment with all existing and future liabilities that are not so subordinated, will be effectively junior to any secured indebtedness to the extent of the value of the assets securing such indebtedness and will be structurally subordinated to all indebtedness and other liabilities (including trade payables) of the our current or future subsidiaries. The Convertible Notes have a maturity date of December 1, 2024.
Holders may convert their Convertible Notes at their option only in the following circumstances: (1) during any calendar quarter commencing after the calendar quarter ending on March 31, 2020, if the last reported sale price per share of common stock exceeds 130% of the conversion price for each of at least 20 trading days during the 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter; (2) during the five consecutive business days immediately after any five consecutive trading day period (such five consecutive trading day period, the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price per share of Company’s common stock on such trading day and the conversion rate on such trading day; (3) upon the occurrence of certain corporate events or distributions on Company’s common stock, as described in the offering memorandum; (4) if we call such notes for redemption; and (5) at any time from, and including, June 1, 2024 until the close of business on the scheduled trading day immediately before the maturity date.
Upon conversion, we will pay or deliver, as applicable, cash, shares of common stock or a combination of cash and shares of common stock, at our election. The initial conversion rate for the Convertible Notes will be 41.9208 shares of common stock per $1,000 in principal amount of Convertible Notes, equivalent to a conversion price of approximately $23.85 per share of our common stock. The conversion rate is subject to adjustment as described in the Indenture.
In accordance with accounting guidance for debt with conversion and other options, we accounted for the debt and equity components of the Convertible Notes separately. The estimated fair value of the debt component at the date of issuance was $381.8 million, which was computed based on our non-convertible borrowing rate for similar debt of 5.19%, derived from independent valuation analysis. The equity component was allocated a value of $65.6 million and represents the difference
between the $447.4 million of net proceeds from the issuance of the Convertible Notes and the $381.8 million estimated fair value of the debt component at the date of issuance.
In connection with the Convertible Notes, we paid the initial purchasers of the Convertible Notes a fee of $12.7 million and incurred additional debt issuance costs totaling $0.3 million, which includes expenses that we paid on behalf of the initial purchasers and expenses incurred directly by us. Debt issuance costs, the initial purchasers’ fee and the equity component is presented as a debt discount as of December 31, 2019 in the amount of $76.9 million, and will be amortized over the remaining estimated term of 5 years using the effective interest method, utilizing an effective interest rate of 5.10%. The net carrying amount of the debt as of December 31, 2019 is $383.1 million. For the year ended December 31, 2019, we recognized interest expense of $2.3 million, including contractual coupon interest of $0.7 million and amortization of the debt discount of $1.6 million.
As of December 31, 2019, we were in compliance with all covenants under the Indenture and there was no material adverse change in our business, operations or financial condition.
Royalty-backed Loan
In January 2016, through our wholly-owned subsidiary Halozyme Royalty LLC (“Halozyme Royalty”), we received a $150 million loan (the “Royalty-backed Loan”) pursuant to a credit agreement (the “Credit Agreement”) with BioPharma Credit Investments IV Sub, LP and Athyrium Opportunities II Acquisition LP (the “Royalty-backed Lenders”). Under the terms of the Credit Agreement, Halozyme Therapeutics, Inc. transferred to Halozyme Royalty the right to receive royalty payments from the commercial sales of ENHANZE products owed under the Roche Collaboration and Baxalta Collaboration (“Collaboration Agreements”). The royalty payments from the Collaboration Agreements will be used to repay the principal and interest on the loan (the “Royalty Payments”).  The Royalty-backed Loan bears interest at a per annum rate of 8.75% plus the three-month LIBOR rate. The three-month LIBOR rate is subject to a floor of 0.7% and a cap of 1.5%. The interest rate as of December 31, 2019 and 2018 was 10.25%.
The Credit Agreement provides that none of the Royalty Payments were required to be applied to the Royalty-backed Loan prior to January 1, 2017, 50% of the Royalty Payments are required to be applied to the Royalty-backed Loan between January 1, 2017 and January 1, 2018 and thereafter all Royalty Payments must be applied to the Royalty-backed Loan. However, the amounts available to repay the Royalty-backed Loan are subject to caps of $13.75 million per quarter in 2017, $18.75 million per quarter in 2018, $21.25 million per quarter in 2019 and $22.5 million per quarter in 2020 and thereafter. Amounts available to repay the Royalty-backed Loan will be applied first to pay interest and second to repay principal on the Royalty-backed Loan. Any accrued interest that is not paid on any applicable quarterly payment date, as defined, will be capitalized and added to the principal balance of the Royalty-backed Loan on such date. Halozyme Royalty will be entitled to receive and distribute to Halozyme any Royalty Payments that are not required to be applied to the Royalty-backed Loan or which are in excess of the foregoing caps.
Because the repayment of the term loan is contingent upon the level of Royalty Payments received, the repayment term may be shortened or extended depending on the actual level of Royalty Payments. The final maturity date of the Royalty-backed Loan will be the earlier of (i) the date when principal and interest is paid in full, (ii) the termination of Halozyme Royalty’s right to receive royalties under the Collaboration Agreements, and (iii) December 31, 2050.  Currently, we estimate that the loan will be repaid in the second quarter of 2020. This estimate could be adversely affected and the repayment period could be extended if future royalty amounts are less than currently expected. Under the terms of the Credit Agreement, at any time after January 1, 2019, Halozyme Royalty may, subject to certain limitations, prepay the outstanding principal of the Royalty-backed Loan in whole or in part, at a price equal to 105% of the outstanding principal on the Royalty-backed Loan, plus accrued but unpaid interest. The Royalty-backed Loan constitutes an obligation of Halozyme Royalty, and is non-recourse to Halozyme. Halozyme Royalty retains its right to the Royalty Payments following repayment of the loan.
As of December 31, 2019, we were in compliance with all covenants under the Royalty-backed Loan and there was no material adverse change in our business, operations or financial condition.
We began making principal and interest payments against the Royalty-backed Loan in the first quarter of 2017 and therefore had zero capitalized interest for the twelve months ended December 31, 2019. In addition, we recorded accrued interest, which is included in accrued expenses, of $0.1 million and $0.4 million as of December 31, 2019 and 2018, respectively.
In connection with the Royalty-backed Loan, we paid the Royalty-backed Lenders a fee of $1.5 million and incurred additional debt issuance costs totaling $0.4 million, which includes expenses that we paid on behalf of the Royalty-backed Lenders and expenses incurred directly by us. Debt issuance costs and the lender fee have been netted against the debt as of December 31, 2019, and are being amortized over the estimated term of the debt using the effective interest method. For the years ended December 31, 2019, 2018 and 2017, we recognized interest expense, including amortization of the debt discount, related to the Royalty-backed Loan of $6.2 million, $13.1 million and $16.4 million, respectively. The assumptions used in determining the expected repayment term of the debt and amortization period of the issuance costs requires that we make estimates that could impact the short- and long-term classification of these costs, as well as the period over which these costs will be amortized. The outstanding balance of the Royalty-backed Loan as of December 31, 2019 was $19.5 million.
Oxford and SVB Loan and Security Agreement
In June 2016, we entered into a Loan and Security Agreement (the “Loan Agreement”) with Oxford Finance LLC (“Oxford”) and Silicon Valley Bank (“SVB”) (collectively, the “Lenders”), providing a senior secured loan facility of up to an aggregate principal amount of $70.0 million, comprising a $55.0 million draw in June 2016 and an additional $15.0 million tranche, which we had the option to draw during the second quarter of 2017 and did not exercise. The initial proceeds were partially used to pay the outstanding principal and final payment of $4.25 million owed on a previous loan agreement with the Lenders. The remaining proceeds were used for working capital and general business requirements. The senior secured loan facility carried a fixed interest rate of 8.25%. The repayment schedule provided for interest only payments for the first 18 months, followed by consecutive equal monthly payments of principal and interest in arrears through the maturity date of January 1, 2021. The Loan Agreement provided for a final payment equal to 5.50% of the initial $55.0 million principal amount, which was due when the Loan Agreement becomes due or upon the prepayment of the facility. We had the option to prepay the outstanding balance of the Loan Agreement in full and exercised this option in November 2019, at which point we paid the full remaining balance and final payment of $26.1 million.
Interest expense, including amortization of the debt discount, related to the Loan Agreement totaled $3.0 million, $4.9 million and $5.5 million for the years ended December 31, 2019, 2018 and 2017, respectively.
Future maturities and interest payments of long-term debt as of December 31, 2019, are as follows (in thousands):
2020
 
$
26,100

2021
 
5,750

2022
 
5,750

2023
 
5,750

2024
 
465,750

Total minimum payments
 
509,100

Less amount representing interest
 
(29,540
)
Gross balance of long-term debt
 
479,560

Less unamortized debt discount
 
(76,973
)
Present value of long-term debt
 
402,587

Less current portion of long-term debt
 
(19,542
)
Long-term debt, less current portion and unamortized debt discount
 
$
383,045