AMERICAN TOWER CORP /MA/ — Director's Dealing 2017

Mar 14, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2017-03-10

Reporting Person: Sharma Amit (EVP, Asia)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-03-10	Common Stock	A	12327	—	Acquired	120586	Direct
2017-03-10	Common Stock	F	2556	$113.58	Disposed	118030	Direct
2017-03-11	Common Stock	F	1570	$113.58	Disposed	116460	Direct

Footnotes

F1: These Restricted Stock Units (RSUs) were granted pursuant to the 2007 Equity Incentive Plan and vest in 25% cumulative annual increments beginning March 10, 2018. Each RSU respresents a contingent right to receive one share of Common Stock.

F2: Shares delivered to the issuer for the payment of withholding taxes in connection with the vesting of RSUs previously granted under the 2007 Equity Incentive Plan.