June 4, 2008
athenahealth Chief Executive Officer Exercises Options, Sells Shares

WATERTOWN, Mass., Jun 04, 2008 (BUSINESS WIRE) -- athenahealth, Inc. (NASDAQ: ATHN), reports that on June 2 and 3, 2008, Jonathan Bush, Chief Executive Officer, President and Chairman of the Board of Directors of athenahealth, Inc. ("athenahealth"), exercised employee stock options to purchase 248,856 shares of athenahealth common stock, par value $0.01 per share (the "Common Stock"). Mr. Bush sold immediately, in open market transactions, all of the shares of Common Stock he purchased through the exercise of these stock options. All of the net, after tax proceeds of the sale will be used to satisfy obligations of Mr. Bush under a pre-existing divorce settlement agreement, with his former wife that covered disposition of the options for her benefit.

About athenahealth

athenahealth is the leading provider of internet-based business services for physician practices. The Company's service offerings are based on proprietary internet-based practice management and electronic medical record (EMR) software, a continuously updated payer knowledge-base and integrated back-office service operations. For more information visit www.athenahealth.com or call (888) 652-8200.

SOURCE: athenahealth

(Media)
athenahealth, Inc.
John Hallock, 617-402-1428
Director, Corporate Communications
media@athenahealth.com
or
(Investors)
athenahealth, Inc.
Carl Byers, 617-402-1113
Chief Financial Officer
investorrelations@athenahealth.com

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