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

May 4, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2021-05-01

Reporting Person: Bartlett Thomas A (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-01	Common Stock	F	598	$254.77	Disposed	194806	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	16928	Indirect
Common Stock	193	Indirect

Footnotes

F1: Shares delivered to the issuer for the payment of withholding taxes in connection with the vesting of restricted stock units previously granted under the 2007 Equity Incentive Plan, as amended.

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