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

Nov 29, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMERICAN TOWER CORP /MA/ (AMT)
CIK: 0001053507
Period of Report: 2018-11-28

Reporting Person: Puech Olivier (EVP & President, LatAm & EMEA)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-11-28	Common Stock	M	2527	$81.18	Acquired	20543	Direct
2018-11-28	Common Stock	M	4142	$94.57	Acquired	24685	Direct
2018-11-28	Common Stock	M	4078	$94.71	Acquired	28763	Direct
2018-11-28	Common Stock	S	7216	$161.65	Disposed	21547	Direct
2018-11-28	Common Stock	S	3531	$162.31	Disposed	18016	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-11-28	Option to Purchase Common Stock	$81.18	M	2527	Disposed	2024-03-10	Common Stock (2527)	Direct
2018-11-28	Option to Purchase Common Stock	$94.57	M	4142	Disposed	2025-03-10	Common Stock (4142)	Direct
2018-11-28	Option to Purchase Common Stock	$94.71	M	4078	Disposed	2026-03-10	Common Stock (4078)	Direct

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adoped by the reporting person on November 5, 2018.

F2: Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $161.13 to $162.12 per share.

F3: Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $162.13 to $162.69 per share.

F4: This option was granted pursuant to the 2007 Equity Incentive Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 10, 2015.

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, 2016.

F6: This option was granted pursuant to the 2007 Equity Incentive Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 10, 2017.