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

Sep 4, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2014-09-03

Reporting Person: Bartlett Thomas A (EVP & Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-09-03	Common Stock	M	38772	$62.00	Acquired	71877	Direct
2014-09-03	Common Stock	S	38772	$97.96	Disposed	33105	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-09-03	Option to Purchase Common Stock	$62.00	M	38772	Disposed	2022-03-12	Common Stock (38772)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	193	Indirect

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 2, 2014.

F2: Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $97.64 to $98.18 per share.

F3: This option was granted pursuant to the 2007 Equity Incentive Plan and is exercisable in 25% cumulative annual increments beginning March 12, 2013.