April 2, 2012 (Update) -- On March 30, 2012, Groupon announced that it was revising its fourth quarter financial results for the year ending on December 31, 2011. Groupon Inc said that 'the revisions have an impact on both revenue and cost of revenue.' As a result of the announced revisions, the Company's fourth quarter 2011 revenue was reduced by $14.3 million. In addition, Groupon's fourth quarter operating income was reduced by $30.0 million, its net income by $22.6 million, and its earnings per share by $0.04.
In connection with an audit of Groupon's financial statements for the year ended December 31, 2011 by its auditor, Ernst & Young LLP, Groupon Inc also said that in conjunction with the completion of the audit of Groupon's financial statements for the year ended December 31, 2011 by its independent auditor, Ernst & Young LLP, the Company included a statement of a material weakness in its internal controls over its financial statement close process in its Annual Report on Form 10-K for year ended December 31, 2011.'

Shares of Groupon Inc (NASDAQ:GRPN), that traded on November 18, 2011 as high as $26.19 and closed on March 30, 2012 at $18.38 per share. On Monday NASDAQ:GRPN shares fell to under $16 per share.

San Diego, Feb. 10, 2012 (Shareholders Foundation) -- An investigation on behalf of investors in shares of Groupon Inc (NASDAQ:GRPN) was announced over potential securities laws violations by certain officers and directors at Groupon in connection with potentially false and misleading statements.

The investigation by a law firm focuses on possible claims on behalf of purchasers of the securities of Groupon Inc (NASDAQ:GRPN) concerning whether a series of statements regarding Groupons business, its prospects and its operations were materially false and misleading at the time they were made.
Groupon Inc reported that its annual Revenue rose from $14.54million in 2009 to $312.94million in 2010 but its Net Loss of $1.34million increased to $389.64million. Groupon Inc reported that its third quarter Revenue of $81.78million from 2010 surged to a third quarter Revenue 2011 of $430.16million and its third quarter Net Loss decreased from $49.03million to $10.57million.

Shares of Groupon Inc (Public, NASDAQ:GRPN) traded on November 18, 2011 at $26.19 and fell on November 28, 2011 to as low as $15.24 per share. NASDAQ:GRPN shares slightly recovered and traded towards the end of 2011 at slightly above $23 per share.
However, NASDAQ:GRPN shares fell in January 2012 to as low as $17.72 per share

Since then Groupon shares increase to over $25 per share during February 8, 2012.

Then on February 8, 2012 after the market closed, Groupon reported its first earnings report since going public in November for the fourth quarter ended December 31, 2011. Groupon Inc reported that revenue increased 194% to $506.5 million in the fourth quarter compared to the fourth quarter of 2010, but also reported a net loss of $42.7 million, or 8 cents per share.

Shares of Groupon Inc (Public, NASDAQ:GRPN) fell in after Hours trading on February 8, 2012 to $20.75 per share and traded on February 9, 2012 as low as $20.22 per share.