X0306 4 2013-11-04 0 0001131096 ATHENAHEALTH INC ATHN 0001412213 Bush Jonathan C/O ATHENAHEALTH, INC. 311 ARSENAL STREET WATERTOWN MA 02472 1 1 0 0 CEO and President Common Stock 2013-11-04 4 M 0 1000 32.72 A 312759 D Common Stock 2013-11-04 4 S 0 1000 137.26 D 311759 D Common Stock 111994 I See Footnote Common Stock 27998 I See Footnote Stock Option (Right to Buy) 32.72 2013-11-04 4 M 0 1000 0.00 D 2009-01-07 2018-03-03 Common Stock 1000 16500 D The sales reported on this Form 4 were made pursuant to a written trading plan adopted by the Reporting Person on June 14, 2013, in accordance with Rule 10b5-1. This price represents the weighted average of sales ranging from $137.20 to $137.50. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price. These shares are owned by The Bush 2004 Gift Trust, the beneficiaries of which are certain of Mr. Bush's children. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. These shares are owned by The Oscar W. Bush 2007 Gift Trust, the beneficiary of which is Mr. Bush's child. The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose. /s/ Daniel H. Orenstein Attorney-in-Fact 2013-11-04