X0101 42003-05-14 0000830158 LABONE INC/ LABS0001123639 WELSH CARSON ANDERSON & STOWE IX LP 0010Common Stock2003-05-144X01960001961.02A196000DCommon Stock2003-05-144S015600348348D180400DCommon Stock2003-05-154S08600187652D171800DWarrants to Purchase Common Stock.012003-05-144X01961020D2001-08-312008-08-31Common Stock196102143699DPursuant to the net exercise provisions of the Warrants, rather than paying cash for the exercise price of the Warrants, Welsh, Carson, Anderson & Stowe IX, L.P. ("WCAS IX") used shares of Common Stock that would have otherwise been issuable under the Warrants as payment for the exercise price. Therefore, the price paid for the shares actually acquired by WCAS IX also includes the exercise price paid for the shares retained by the issuer as payment for the exercise price. The value of the shares of Common Stock used in accordance with the net exercise provision of the Warrants was $19.31 per share.Jonathan M. Rather, Managing Member2003-05-15