After American Tower Corp. disclosed that it received a subpoena from the U. S. Securities and Exchange Commission an investigation on behalf of investors of American Tower Corporation (NYSE:AMT) concerning possible violations of Federal Securities Laws was announced.

The investigation by a law firm focuses on whether American Tower Corporation or others have violated federal securities laws by issuing false and misleading statements to its shareholders and/or whether certain officers and directors at American Tower Corp. breached their fiduciary duty.

American Towers 12months Total Revenue rose from $1.456billion in 2007 to $1.985billion in 2010. Its Net Income surged from $56.32million in 07 to $372.94million in 2010. For the first quarter in 2011 American Tower Corporation reported a quarterly Total Revenue of $562.70million compared to a quarterly Revenue of $454.43million a year earlier.

Shares of American Tower Corporation (Public, NYSE:AMT) increased from as low as $27.24 per share in November 08 to as high as $56.73 per share on February 2011.

Then on Friday, June 3rd, American Tower Corporation disclosed in a filing that its received a subpoena from the U. S. Securities and Exchange Commission (SEC) requesting certain documents from 2007 through the present, including in particular documents related to American Towers tax accounting and reporting.

Shares of American Tower Corporation (NYSE AMT) fell from $55.48 per share on May 31 to $50.94 on June 3rd.