AMERICAN TOWER CORP /MA/ — Director's Dealing 2018

Jun 13, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2018-06-11

Reporting Person: TAICLET JAMES D JR (Director, Chairman, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-06-11	Common Stock	M	43843	$50.78	Acquired	223227	Direct
2018-06-11	Common Stock	S	41243	$138.89	Disposed	181984	Direct
2018-06-11	Common Stock	S	2600	$139.32	Disposed	179384	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-06-11	Option to Purchase Common Stock	$50.78	M	43843	Disposed	2021-03-10	Common Stock (43843)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1420	Indirect
Common Stock	164152	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 May 2, 2018.

F2: Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $138.28 to $139.27 per share.

F3: Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $139.29 to $139.38 per share.

F4: The reporting person disclaims beneficial ownership in shares held by children.

F5: This option was granted pursuant to the 2007 Equity Incentive Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 10, 2012.