2/24/2018 S-1 Table of Contents Revenue Revenue by geography is generally based on the address of the customer as defined in the Company’s subscription agreement. The following table sets forth revenue by geographic area for the years ended December 31, 2015, 2016, and 2017. Year ended December 31, 2015 2016 2017 United States $ 326.1 $ 455.9 $ 575.7 (1) International 277.7 388.9 531.1 Total revenue $ 603.8 $ 844.8 $1,106.8 (1) No single country outside of the United States accounted for more than 10 percent of total revenue during the years ended December 31, 2015, 2016, and 2017 Note 17. Subsequent Events The Company has evaluated subsequent events through February 23, 2018, the date that the independent auditor’s report as of and for the year ended December 31, 2017 was originally issued and the audited annual consolidated financial statements were available for issuance. In February 2018, the Company amended its revolving credit facility to, among other things, permit the Company to make certain investments, enter into an unsecured standby letter of credit facility, and increase its standby letter of credit sublimit to $187.5 million. The Company also increased its borrowing capacity under the revolving credit facility from $600.0 million to $725.0 million. The Company may from time to time request increases in its borrowing capacity under its revolving credit facility of up to $275.0 million, provided no event of default has occurred or is continuing or would result from such increase. In February 2018, the Board of Directors approved grants of RSUs of 14,865,820. These RSUs will result in estimated stock­based compensation of $170.2 million, which is expected to be recognized over a weighted­average period of 3.9 years from the grant date. In February 2018, the Company’s Board of Directors also approved the acceleration of the Performance Vesting Condition for two­tier RSUs for which the service condition was satisfied, to occur upon the effectiveness of the registration statement related to this offering. F­36 https://www.sec.gov/Archives/edgar/data/1467623/000119312518055809/d451946ds1.htm 226/235