UPDATE: athenahealth Provides Fiscal Year 2012 Guidance at Fourth Annual Investor Summit

athenahealth, Inc.

today provided financial guidance for fiscal year 2012 at its Fourth Annual Investor Summit. In addition, the Company reaffirmed existing guidance for fiscal year 2011, most recently updated within the Company's Q3 2011 earnings release. The Company's fiscal year 2012 guidance is presented below: For the Fiscal Year Ending December 31, 2012 GAAP Total Revenue $410-430 million Non-GAAP Adjusted Gross Margin 61.5-62.5% Non-GAAP Adjusted Operating Income $52-60 million Non-GAAP Adjusted Net Income per Diluted Share $0.85-0.97 GAAP Effective Tax Rate 42-43%