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

Mar 12, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2021-03-10

Reporting Person: Smith Rodney M (EVP, CFO & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-03-10	Common Stock	A	6360	$0.0	Acquired	55197	Direct
2021-03-10	Common Stock	F	1162	$204.42	Disposed	54035	Direct
2021-03-11	Common Stock	F	570	$213.9	Disposed	53465	Direct

Footnotes

F1: These restricted stock units ("RSUs") were granted pursuant to the 2007 Equity Incentive Plan, as amended (the "Plan"), and vest in 25% cumulative annual increments beginning March 10, 2022. Each RSU respresents a contingent right to receive one share of Common Stock.

F2: Includes 119 shares acquired under the issuer's employee stock purchase plan in May 2020.

F3: Shares delivered to the issuer for the payment of withholding taxes in connection with the vesting of RSUs previously granted under the Plan.