Steven O Vondran Form 3 AMERICAN TOWER / Steven O Vondran ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Vondran Steven O

(Last) (First) (Middle)

116 HUNTINGTON AVENUE

(Street)

BOSTON MA 02116

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/01/2018

3. Issuer Name and Ticker or Trading Symbol
AMERICAN TOWER CORP /MA/ [ AMT ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
EVP & President, U.S. Tower

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	25,122(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option to Purchase Common Stock	(2)	03/10/2024	Common Stock	9,265	81.18	D
Option to Purchase Common Stock	(3)	03/10/2025	Common Stock	21,537	94.57	D
Option to Purchase Common Stock	(4)	03/10/2026	Common Stock	33,482	94.71	D

Explanation of Responses:

1. Amount includes 19,996 shares of Common Stock underlying unvested restricted stock units previously granted under the 2007 Equity Incentive Plan, as amended (the "Plan").

2. This option was granted pursuant to the Plan and is exercisable in 25% cumulative annual increments beginning March 10, 2015.

3. This option was granted pursuant to the Plan and is exercisable in 25% cumulative annual increments beginning March 10, 2016.

4. This option was granted pursuant to the Plan and is exercisable in 25% cumulative annual increments beginning March 10, 2017.

Remarks:

	/s/ Mneesha O. Nahata, as attorney-in-fact	08/09/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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