Stock Trading History of Bua Jean A

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Bua Jean A since year 2005. The trader's CIK number is 1183333. At the time of this reporting, Bua Jean A is the EVP, Finance and Controller of American Tower Corp /ma/ . (stock ticker symbol AMT). See this page for all insider trading activities at American Tower Corp /ma/ .

Stock purchases, sales, and option exercises reported by insider *Bua Jean A* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-05-09	AMT	American Tower Corp /ma/	Sale	40,000	43.59	1,743,542
2008-05-09	AMT	American Tower Corp /ma/	Option Exercise	40,000	22.55	902,000

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Bua Jean A (EVP, Finance and Controller of American Tower Corp /ma/ at the time of this reporting) see the Securities and Exchange Commission (SEC) website.