Option Grant and Exercise Terms

Table of Contents Exhibit Number Exhibit Description EXHIBIT INDEX Incorporated by Reference Form 3.1 Restated Certificate of Incorporation 10-Q File No. 001-35727 Exhibit Filing Date 3.1 July 17, 2015 29 3.2 Amended and Restated Bylaws 8-K 001-35727 3.1 December 18, 2020 4.1 Form of Common Stock Certificate S-1/A 333-83878 4.1 April 16, 2002 4.2 Indenture, dated as of February 19, 2014, by and 8-K 001-35727 4.1 February 19, 2014 between the Company and Wells Fargo Bank, National Association, as Trustee. 4.3 Indenture, dated as of February 5, 2015, by and between the Company and Wells Fargo Bank, National Association, as Trustee. 8-K 001-35727 4.1 February 5, 2015 4.4 Indenture, dated as of February 5, 2015, by and between the Company and Wells Fargo Bank, National Association, as Trustee. 8-K 001-35727 4.2 February 5, 2015 4.5 Indenture, dated as of October 27, 2016, by and between the Company and Wells Fargo Bank, National Association, as Trustee. 8-K 001-35727 4.1 October 27, 2016 4.6 First Supplemental Indenture, dated as of 10-Q 001-35727 4.7 April 20, 2017 September 24, 2014, by and between the Company and Wells Fargo Bank, National Association, as Trustee. 4.7 Indenture, dated as of May 2, 2017, by and 8-K 001-35727 4.1 May 3, 2017 between the Company and Wells Fargo Bank, National Association, as Trustee. 4.8 Indenture, dated as of October 26, 2017, by and 8-K 001-35727 4.1 October 26, 2017 between the Company and Wells Fargo Bank National Association, as Trustee 4.9 Indenture, dated as of April 26, 2018, by and between the Company and Wells Fargo Bank National Association, as Trustee 8-K 001-35727 4.1 April 26, 2018 4.10 Indenture, dated as of October 26, 2018, by and 8-K 001-35727 4.1 October 26, 2018 between the Company and Wells Fargo Bank National Association, as Trustee (6.375% Senior Notes due 2029) 4.11 Indenture, dated as of October 26, 2018, by and 8-K 001-35727 4.3 October 26, 2018 between the Company and Wells Fargo Bank National Association, as Trustee (4.625% Senior Notes due 2029) 4.12 Indenture, dated as of April 29, 2019, by and 8-K 001-35727 4.1 April 29, 2019 between the Company and Wells Fargo Bank National Association, as Trustee (5.375% Senior Notes due 2029) 4.13 Indenture, dated as of April 29, 2019, by and 8-K 001-35727 4.3 April 29, 2019 between the Company and Wells Fargo Bank National Association, as Trustee (3.875% Senior Notes due 2029) 4.14 Indenture, dated as of October 25, 2019, by and 8-K 001-35727 4.1 October 25, 2019 between the Company and Wells Fargo Bank National Association, as Trustee (4.875% Senior Notes due 2030) 4.15 Indenture, dated as of October 25, 2019, by and 8-K 001-35727 4.3 October 25, 2019 between the Company and Wells Fargo Bank National Association, as Trustee (3.625% Senior Notes due 2030) 4.16 Indenture, dated as of April 28, 2020, by and 8-K 001-35727 4.1 April 28, 2020 between the Company and Wells Fargo Bank National Association, as Trustee (3.625% Senior Notes due 2025) 62 Filed Herewith

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