On June 18, 2021, the Company issued $625.0 million aggregate principal amount of 0.75% unsecured Convertible Senior Notes due 2026 (the “Notes”), including $75.0 million aggregate principal amount of such notes pursuant to the exercise in full of the overallotment option granted to the initial purchasers. The Notes were issued pursuant to an indenture (the “Indenture”), between the Company and U.S. Bank National Association, as trustee.

The Notes bear interest at a rate of 0.75% per annum, payable semiannually in arrears on January 1 and July 1 of each year, beginning on January 1, 2022. The Notes will mature on July 1, 2026, subject to earlier repurchase, redemption or conversion. The total net proceeds from the offering, after deducting commissions paid to the initial purchasers and debt issuance costs paid to third-parties, were approximately $608.8 million.

Each $1,000 principal amount of the Notes will initially be convertible into 17.8527 shares of the Company’s common stock, which is equivalent to an initial conversion price of approximately $56.01 per share, subject to adjustment upon the occurrence of specified events. The Notes are convertible, at the option of the noteholders, on or after April 1, 2026. Prior to April 1, 2026, the Notes are convertible only under the following circumstances:

•

During any fiscal quarter commencing after the fiscal quarter ending on September 30, 2021 (and only during such fiscal quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price of the Notes on each applicable trading day;

•

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

•

If the Company calls any or all of the Notes for redemption; or

•

Upon the occurrence of specific corporate events such as a change in control or certain beneficial distributions to common stockholders (as set forth in the Indenture).

The Company may settle conversions by paying or delivering, as applicable, cash, shares of its common stock or a combination of cash and shares of its common stock, at the Company’s election.

The Company may not redeem the Notes prior to July 6, 2024. On or after July 6, 2024, the Company may redeem all or any portion of the Notes for cash equal to 100% of the principal amount of the Notes being redeemed plus any accrued and unpaid interest if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period.

If the Company undergoes a fundamental change (as defined in the Indenture), subject to certain conditions, holders of the Notes may require the Company to repurchase for cash all or any portion of their Notes at a repurchase price equal to 100% of the principal amount of the Notes plus any accrued and unpaid interest. In addition, if specific corporate events occur prior to the maturity date or if the Company issues a notice of redemption, the Company will increase the conversion rate by pre-defined amounts for a holder who elects to convert their Notes in connection with such a corporate event. During the three months ended June 30, 2021, the conditions allowing holders of the Notes to convert were not met.

We account for the Notes as a single liability-classified instrument measured at amortized cost. As of June 30, 2021, the unamortized debt discount and debt issuance costs was $16.0 million and the net carrying value was $609.0 million. The total estimated fair value of the Notes as of June 30, 2021 was approximately $644.0 million. The fair value was determined using commonly employed valuation methodologies applying observable market inputs and is classified within Level 2 of the fair value hierarchy.

The Notes were issued at par value and fees associated with the issuance of these Notes are amortized to interest expense using the effective interest method over the contractual term of the Notes. The interest expense for the three and six months ended June 30, 2021 was not material. The effective interest rate of the Notes is 1.3%.