Item 6. EXHIBITS Copy as markdown Incorporated By Reference Exhibit No. Description of Document Form File No. Date of Filing Exhibit No. 3.1 Restated Certificate of Incorporation of the Company as filed with the Secretary of State of the State of Delaware, effective as of December 31, 2011 8-K 001-14195 January 3, 2012 3.1 3.2 Certificate of Merger, effective as of December 31, 2011 8-K 001-14195 January 3, 2012 3.2 3.3 Amended and Restated By-Laws of the Company, effective as of February 12, 2016 8-K 001-14195 February 16, 2016 3.1 4.1 Supplemental Indenture No. 1, dated as of March 3, 2023, by and between American Tower Corporation and U.S. Bank Trust Company, National Association, as Trustee, for the 5.500% Senior Notes due 2028 and the 5.650% Senior Notes due 2033 8-K 001-14195 March 3, 2023 4.1 10.1 Second Supplement and Amendment dated as of March 13, 2023 to the Second Amended and Restated Loan and Security Agreement dated as of March 29, 2018, by and among American Tower Asset Sub, LLC and American Tower Asset Sub II, LLC, as Borrowers, and U.S. Bank Trust Company, National Association, as Trustee for American Tower Trust I Secured Tower Revenue Securities as Lender Filed herewith as Exhibit 10.1 — — — 10.2 First Amendment dated as of March 13, 2023 to the Second Amended and Restated Cash Management Agreement dated as of March 29, 2018, by and among American Tower Asset Sub, LLC, American Tower Asset Sub II, LLC, the Borrowers party thereto, U.S. Bank Trust Company, National Association, as Trustee for American Tower Trust I Secured Tower Revenue Securities as Lender, Midland Loan Services, a Division of PNC Bank, National Association, as Servicer, U.S. Bank National Association, as Agent, and Spectrasite Communications, LLC, as Manager Filed herewith as Exhibit 10.2 — — — 10.3 Second Trust Agreement Supplement and Amendment dated as of March 13, 2023 to Second Amended and Restated Trust and Servicing Agreement dated as of March 29, 2018, by and among American Tower Depositor Sub, LLC, as Depositor, Midland Loan Services, a Division of PNC Bank, National Association, as Servicer, and U.S. Bank Trust Company, National Association, as Trustee Filed herewith as Exhibit 10.3 — — — 31.1 Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Filed herewith as Exhibit 31.1 — — — 31.2 Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Filed herewith as Exhibit 31.2 — — —
Incorporated By Reference Exhibit No. Description of Document Form File No. Date of Filing Exhibit No. 32 Certifications filed pursuant to 18. U.S.C. Section 1350 Filed herewith as Exhibit 32 — — — 101.SCH Inline XBRL Taxonomy Extension Schema Document — — — 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Filed herewith as Exhibit 101 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) — — — —
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
AMERICAN TOWER CORPORATION Date: April 26, 2023 By: /S/ RODNEY M. SMITH Rodney M. Smith Executive Vice President, Chief Financial Officer and Treasurer (Duly Authorized Officer and Principal Financial Officer)
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