abiomed , inc . 2005 annual report : financials page 15 notes to consolidated financial statements 2014 march 31 , 2005 in addition to compensation expense related to stock option grants , the pro forma compensation expense shown in the table above includes compensation expense related to stock issued under the company 2019s employee stock purchase plan of approximately $ 44000 , $ 19000 and $ 28000 for fiscal 2003 , 2004 and 2005 , respectively