Home > Insider Trading > Filing (0001338678-10-000051)

Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1053507	American Tower Corp	AMT	Communications Services, Nec (4899)	650723837

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1220905	H William Hess	116 Huntington Avenue Boston MA 2116	Evp, Int'l. Operations	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Class A Common Stock	Acquisiton	2010-07-01	57,275	$31.50	59,953	No	4	M	Direct
Class A Common Stock	Acquisiton	2010-07-01	8,514	$28.39	68,467	No	4	M	Direct
Class A Common Stock	Disposition	2010-07-01	60,788	$43.77	7,679	No	4	S	Direct
Class A Common Stock	Disposition	2010-07-01	5,001	$44.41	2,678	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Class A Common Stock	Option to Purchase Class A Common Stock	Disposition	2010-07-01	57,275	$0.00	57,275	$31.50
Class A Common Stock	Option to Purchase Class A Common Stock	Disposition	2010-07-01	8,514	$0.00	8,514	$28.39

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
117,725		2016-03-01	No	4	M	Direct
17,030		2019-03-10	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Class A Common Stock	9,662	Indirect	By GRAT

Footnotes

Includes 600 shares acquired under the Company's employee stock purchase plan in May 2010 and 2,078 shares previously reported as indirectly beneficially owned through a grantor retained annuity trust ("GRAT"), but returned to the reporting person's direct beneficial ownership on June 17, 2010 in the form of a scheduled annuity payment under the terms of the GRAT.
The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.
Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $43.28 to $44.27 per share.
Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $44.28 to $44.78 per share.
This option was granted pursuant to the 1997 Stock Option Plan, as amended, and is exercisable in 25% cumulative annual increments beginning March 1, 2007.
This option was granted pursuant to the 2007 Equity Incentive Plan and is exercisable in 25% cumulative annual increments beginning March 10, 2010.