X0306 4 2014-03-03 0 0001131096 ATHENAHEALTH INC ATHN 0001204310 KAHANE STEPHEN N 311 ARSENAL STREET WATERTOWN MA 02472 0 1 0 0 President, Enterprise Services Common Stock 2014-03-03 4 A 0 7500 0.00 A 79153 D Performance Stock Unit 2014-03-03 4 A 0 6534 0.00 A 2018-03-01 Common Stock 6534 6534 D Represents an award of restricted stock units pursuant to the Issuer's 2007 Stock Option and Incentive Plan, as amended and restated. The restricted stock units vest in four equal annual installments beginning on March 1, 2015. Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock. The performance stock units vest in four equal annual installments beginning on March 1, 2015, subject to achievement of certain performance goals. /s/ Daniel H. Orenstein Attorney-in-Fact 2014-03-05