X0202 4 2004-06-03 0000830158 LABONE INC/ LABS 0001163949 RATTERMAN JOSEPH P 10101 RENNER BLVD LENEXA KS 66219 0 1 0 0 Exec VP-Chief Infor. Officer Common Stock 2004-06-03 4 M 0 16000 15.825 A 16000 D Common Stock 2004-06-03 4 S 0 16000 31.5522 D 0 D Common Stock 2004-06-03 4 M 0 5000 24.15 A 5000 D Common Stock 2004-06-03 4 S 0 5000 31.5522 D 0 D Common Stock 2004-06-03 4 J 0 740 A 740 I By 401(k) Plan Employee Stock Option (right to buy) 15.825 2004-06-03 4 M 0 16000 15.825 D 2007-02-27 2012-02-27 Common Stock 16000 24000 D Employee Stock Option (right to buy) 24.15 2004-06-03 4 M 0 5000 24.15 D 2007-05-27 2012-05-27 Common Stock 5000 20000 D The option vests in five equal annual installments beginning on February 27,2003 The option vests in five equal annual installments beginning on May 27,2003 The reporting person acquired 740 shares of Common Stock between July 1, 2002 and June 3, 2004 under the LabOne, Inc., Profit Sharing 401(k) Plan. The information in this report is based on a plan statement date as of June 3, 2004. Joseph P Ratterman by Randy Shelton attorney-in-fact 2004-06-04