Convertible Senior Notes, Net

6 Months Ended

Jun. 30, 2024

In June 2020, the Company issued an aggregate principal of $172.5 million of its 2025 Notes, pursuant to an indenture, in a private offering to qualified institutional buyers. The 2025 Notes will mature on June 15, 2025, unless earlier redeemed or repurchased by the Company or converted. In February 2024, certain of the 2025 Notes were extinguished in connection with the Note Exchange (see Note 6 — Non-convertible Notes, Net).

At issuance, the Company received net proceeds from the 2025 Notes offering of approximately $165.8 million, after deducting the initial purchasers’ discount and commission and offering expenses. The Company used approximately $22.5 million of the net proceeds from the 2025 Notes offering to fund the net cost of entering into the capped call transactions described below. The Company intends to use the remainder of the net proceeds for general corporate purposes.

In March 2021, the Company issued an aggregate principal of $287.5 million of its 2028 Notes, pursuant to an indenture, in a private offering to qualified institutional buyers. The 2028 Notes will mature on March 1, 2028, unless earlier redeemed or repurchased by the Company or converted. In February 2024, certain of the 2028 Notes were extinguished in connection with the Note Exchange (see Note 6 — Non-convertible Notes, Net).

At issuance, the Company received net proceeds from the 2028 Notes offering of approximately $278.1 million, after deducting the initial purchasers’ discount and commission and offering expenses. The Company used approximately $33.7 million of the net proceeds from the 2028 Notes offering to fund the net cost of entering into the capped call transactions described below. The Company intends to use the remainder of the net proceeds for general corporate purposes.

The 2025 Notes accrue interest at a rate of 3.00% per annum, payable semi-annually in arrears on June 15 and December 15 of each year, beginning on December 15, 2020. The initial conversion rate applicable to the 2025 Notes is 56.2635 shares of common stock per $1,000 principal amount of 2025 Notes (which is equivalent to an initial conversion price of approximately $17.77 per share of the Company’s common stock). The 2028 Notes accrue interest at a rate of 1.00% per annum, payable semi-annually in arrears on March 1 and September 1 of each year, beginning on September 1, 2021. The initial conversion rate applicable to the 2028 Notes is 31.4465 shares of common stock per $1,000 principal amount of 2028 Notes (which is equivalent to an initial conversion price of approximately $31.80 per share of the Company’s common stock). The conversion rate is subject to adjustment upon the occurrence of certain specified events but will not be adjusted for accrued and unpaid interest. In addition, upon the occurrence of a corporate event, the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its Convertible Senior Notes in connection with such corporate event.

The 2025 Notes will be redeemable, in whole or in part, at the Company’s option at any time, and from time to time, on or after June 20, 2023, and the 2028 Notes will be redeemable, in whole or in part, at the Company's option at any time, and

from time to time, on or after March 5, 2025, in each case if the last reported sale price per share of the Company’s common stock exceeds 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive), including the trading day immediately preceding the date on which the Company provides notice of redemption, during any 30 consecutive trading day period ending on, and including, the trading day immediately before the date the Company sends the related redemption notice. In addition, calling any Note for redemption will constitute a make-whole fundamental change with respect to that Note, in which case the conversion rate applicable to the conversion of that Note will be increased in certain circumstances if it is converted after it is called for redemption.

Prior to March 15, 2025, in the case of the 2025 Notes, and December 1, 2027, in the case of the 2028 Notes, the applicable Convertible Senior Notes will be convertible only under the following circumstances:

•During any calendar quarter (and only during such calendar quarter), if the last reported sale price per share of the Company’s common stock exceeds 130% of the applicable conversion price on each applicable trading day for at least 20 trading days (whether or not consecutive) in the period of the 30 consecutive trading day period ending on, and including, the last trading day of the immediately preceding calendar quarter;

•During the five business day period after any five consecutive trading day period in which, for each day of that period, the trading price per $1,000 principal amount of Convertible Senior Notes for such trading day was less than 98% of the product of the last reported sale price of the Company’s common stock and the applicable conversion rate on such trading day;

•Upon the occurrence of specified corporate transactions; or

•If the Company calls any Convertible Senior Notes for redemption.

On and after March 15, 2025, in the case of the 2025 Notes, and December 1, 2027, in the case of the 2028 Notes, until the close of business on the scheduled trading day immediately preceding the maturity date, holders may convert all or a portion of their Convertible Senior Notes, in multiples of $1,000 principal amount, at any time, regardless of the foregoing circumstances. Upon conversion, the Convertible Senior Notes will be settled, at the Company’s election, in cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock. It is the Company’s current intent to settle conversions of the 2025 Notes and the 2028 Notes through combination settlement, which involves repayment of the principal portion in cash and any excess of the conversion value over the principal amount in shares of its common stock. The conditions allowing holders of either the 2025 Notes or the 2028 Notes to convert were not met as of June 30, 2024.

The Convertible Senior Notes are unsecured and unsubordinated obligations of the Company and will rank senior in right of payment to any of future indebtedness of the Company that is expressly subordinated in right of payment to the Convertible Senior Notes; rank equal in right of payment to any existing and future unsecured indebtedness of the Company that is not so subordinated; be effectively subordinated in right of payment to any secured indebtedness of the Company to the extent of the value of the assets securing such indebtedness; and be structurally subordinated to all existing and future indebtedness and other liabilities and obligations incurred by future subsidiaries of the Company.

If bankruptcy, insolvency, or reorganization occurs with respect to the Company (and not solely with respect to a significant subsidiary of the Company), then the principal amount of, and all accrued and unpaid interest on, all of the 2025 Notes and 2028 Notes then outstanding will immediately become due and payable without any further action or notice by any person. If an event of default (other than bankruptcy, insolvency, or reorganization with respect to the Company and not solely with respect to a significant subsidiary of the Company) occurs and is continuing, then, with the exception of certain reporting events of default, the trustee, by notice to the Company, or noteholders of at least 25% of the aggregate principal amount of 2025 Notes or 2028 Notes, as applicable, then outstanding, by notice to us and the trustee, may declare the principal amount of, and all accrued and unpaid interest on, all of the 2025 Notes or 2028 Notes, as applicable, the outstanding to become due and payable immediately.

The carrying amount of the 2025 Notes is $26.5 million as of June 30, 2024, with principal of $26.7 million, net of unamortized issuance costs of $0.2 million. The 2025 Notes were classified as short term liabilities as of June 30, 2024. The issuance costs related to the 2025 Notes are being amortized to interest expense over the expected life of the 2025 Notes or approximately its five-year term at an effective interest rate of 3.74%. The carrying amount of the 2028 Notes is $276.2 million as of June 30, 2024, with principal of $281.0 million, net of unamortized issuance costs of $4.9 million. The 2028 Notes were classified as long term liabilities as of June 30, 2024. The issuance costs related to the 2028 Notes are being amortized to interest expense over the expected life of the 2028 Notes or approximately its seven-year term at an effective interest rate of 1.45%.

The following tables set forth the amounts recorded in interest expense related to the 2025 Notes as of the dates indicated (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Contractual interest expense	$	201	$	1,294	$	1,130	$	2,588
Amortization of debt issuance costs	51		320		280		628
Total interest and amortization expense	$	252	$	1,614	$	1,410	$	3,216

The following tables set forth the amounts recorded in interest expense related to the 2028 Notes as of the dates indicated (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Contractual interest expense	$	703	$	719	$	1,416	$	1,438
Amortization of debt issuance costs	333		326		660		651
Total interest and amortization expense	$	1,036	$	1,045	$	2,076	$	2,089

A schedule of the Company's future maturities for the 2025 and 2028 Notes, is as follows (in thousands):


	Amount
Fiscal Year	2025 Notes		2028 Notes
2024	$	—	$	—
2025	26,749		—
2026	—		—
2027	—		—
2028	—		281,019
Total principal payments	26,749		281,019
Less unamortized debt issuance costs	(199)		(4,860)
Net carrying amount	$	26,550	$	276,159

Capped Call Transactions with Respect to the 2025 Notes and 2028 Notes

In connection with the issuance of the 2025 Notes and 2028 Notes, including the initial purchasers’ exercise of the option to purchase additional 2025 Notes and 2028 Notes, the Company entered into capped call transactions with respect to its common stock with certain financial institutions (collectively, the “Counterparties”). The Company paid an aggregate amount of approximately $22.5 million to the Counterparties in connection with the 2025 capped call transactions (the “2025 Capped Calls”) and $33.7 million to the Counterparties in connection with the 2028 capped call transactions and (the “2028 Capped Calls” and, together with the 2025 Capped Calls, the “Capped Calls”). The 2025 Capped Calls and 2028 Capped Calls initially covered approximately 9,705,454 shares and 9,040,869 shares of the Company’s common stock at a strike price that corresponds to the initial conversion price of the 2025 Notes and the 2028 Notes, respectively. The 2025 Capped Calls and the 2028 Capped Calls are subject to anti-dilution adjustments that are intended to be substantially identical to those in the 2025 Notes and the 2028 Notes, as applicable, and are exercisable upon conversion of the 2025 Notes or the 2028 Notes, as applicable. The Capped Calls are subject to adjustment upon the occurrence of specified extraordinary events affecting the Company, including merger events, tender offer and announcement events. In addition, the Capped Calls are subject to certain specified additional disruption events that may give rise to a termination of the Capped Calls, including nationalization, insolvency or delisting, changes in law, failures to deliver, insolvency filings and hedging disruptions. The 2025 Capped Calls settle in components commencing on April 16, 2025 with the last component scheduled to expire on June 12, 2025. The 2028 Capped Calls settle in components commencing on December 31, 2027 with the last component scheduled to expire on February 28, 2028.

The cap price of the 2025 Capped Call is initially $27.88 per share, which represents a premium of 100.0% over the closing price of the Company’s common stock of $13.94 per share on June 10, 2020, and is subject to certain adjustments under the terms of the capped call transactions. The cap price of the 2028 Capped Call is initially $48.00 per share, which represents a premium of 100.0% over the closing price of the Company’s common stock of $24.00 per share on March 3, 2021, and is

subject to certain adjustments under the terms of the capped call transactions. The Company expects to receive from the Counterparties a number of shares of the Company’s common stock or, at the Company’s election (subject to certain conditions), cash, with an aggregate market value (or, in the case of cash settlement, in an amount) approximately equal to the product of such excess times the number of shares of the Company’s common stock relating to the 2025 and 2028 Capped Calls being exercised.

These Capped Call instruments meet the conditions outlined in ASC 815-40 to be classified in stockholders’ equity, are not accounted for as derivatives, and are not subsequently remeasured as long as the conditions for equity classification continue to be met. The Company recorded a reduction to additional paid-in capital of approximately $22.5 million and $33.7 million related to the premium payments for the 2025 Capped Call and 2028 Capped Call transactions.

In connection with the Note Exchange, the Company received $0.4 million in cash in connection with settling certain Capped Calls. After giving effect to such settlements, the 2025 Capped Calls and 2028 Capped Calls outstanding cover approximately 1,504,992 and 8,837,095 shares of the Company's common stock, respectively. As the Capped Calls were equity classified, the proceeds from settlement of these Capped Calls were recorded to additional paid in capital.