AMERICAN TOWER CORP /MA/ — Director's Dealing 2016

Jul 8, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2016-07-06

Reporting Person: KATZ CAROLYN (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-07-06	Common Stock	M	10000	$37.52	Acquired	26584	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-07-06	Option to Purchase Common Stock	$37.52	M	10000	Disposed	2017-03-15	Common Stock (10000)	Direct

Footnotes

F1: The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 15, 2016, as amended.

F2: This option was granted pursuant to the 1997 Stock Option Plan, as amended.