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

Oct 10, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2014-10-08

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-10-08	Common Stock	M	19431	$76.90	Acquired	52536	Direct
2014-10-08	Common Stock	S	19431	$95.00	Disposed	33105	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-10-08	Option to Purchase Common Stock	$76.90	M	19431	Disposed	2024-03-11	Common Stock (19431)	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: This option was granted pursuant to the 2007 Equity Incentive Plan and is exercisable in 25% cumulative annual increments beginning March 11, 2014.