AMERICAN TOWER CORP /MA/ — Director's Dealing 2021

Mar 1, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2021-02-25

Reporting Person: Bartlett Thomas A (President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-25	Common Stock	A	23653	—	Acquired	192240	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	193	Indirect
Common Stock	16928	Indirect

Footnotes

F1: Reflects the number of performance-based restricted stock units ("PSUs") earned, as a result of the Compensation Committee's certification to the achievement of performance, under the terms of a PSU award granted on March 12, 2018. These shares will vest at the end of the three-year performance period of such PSU award, and each PSU represents a contingent right to receive one share of Common Stock.

F2: The reporting person disclaims beneficial ownership in shares held by trusts for children.