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. 4, dated as of September 15, 2023, by and between the Company and U.S. Bank Trust Company, National Association, as trustee, for the 5.800% Senior Notes due 2028 and the 5.900% Senior Notes due 2033 8-K 001-14195 September 15, 2023 4.1 10.1 Form of Restricted Stock Units Agreement (U.S. Employee) (For grants made beginning October 1, 2023) Pursuant to the American Tower Corporation 2007 Equity Incentive Plan, as amended Filed herewith as Exhibit 10.1 — — — 10.2 Form of Restricted Stock Units Agreement (Non-U.S. Employee) (For grants made beginning October 1, 2023) Pursuant to the American Tower Corporation 2007 Equity Incentive Plan, as amended Filed herewith as Exhibit 10.2 — — — 10.3 Form of Restricted Stock Units Agreement (Non-Employee Director) (For grants made beginning October 1, 2023) Pursuant to the American Tower Corporation 2007 Equity Incentive Plan, as amended Filed herewith as Exhibit 10.3 — — — 10.4 Form of Notice of Grant of Performance-Based Restricted Stock Units Agreement (U.S. Employee) (For grants made beginning October 1, 2023) Pursuant to the American Tower Corporation 2007 Equity Incentive Plan, as amended Filed herewith as Exhibit 10.4 — — — 10.5 Form of Notice of Grant of Performance-Based Restricted Stock Units Agreement (Non-U.S. Employee) (For grants made beginning October 1, 2023) Pursuant to the American Tower Corporation 2007 Equity Incentive Plan, as amended Filed herewith as Exhibit 10.5 — — — 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 — — — 32 Certifications filed pursuant to 18. U.S.C. Section 1350 Filed herewith as Exhibit 32 — — —
Incorporated By Reference Exhibit No. Description of Document Form File No. Date of Filing Exhibit No. 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: October 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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