AMERICAN TOWER CORP /MA/ — Director's Dealing 2014

Apr 18, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2014-04-17

Reporting Person: DOLAN RAYMOND P (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-04-17	Common Stock	M	10000	$37.52	Acquired	19059	Direct
2014-04-17	Common Stock	S	10000	$83.00	Disposed	9059	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-04-17	Option to Purchase Common Stock	$37.52	M	10000	Disposed	2017-03-15	Common Stock (10000)	Direct

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.

F2: This option was granted pursuant to the 1997 Stock Option Plan, as amended, and was fully vested on March 15, 2007.