X0306 4/A 2013-03-08 2013-03-11 false 0000714603 DST SYSTEMS INC DST 0001193825 TRITT ROBERT L 333 WEST 11TH STREET KANSAS CITY MO 64105 false true false false Executive Vice President Common Stock 2013-03-08 4 F false 11306 69.475 D 20398 D The Reporting Person is amending the Form 4 originally filed to report the withholding of shares to satisfy the tax withholding for RSUs that vested on March 8, 2013 (11,474 shares withheld was mistakenly reported). These overreported shares were also included in the direct ownership totals on one subsequent Form 4 filed by Reporting Person on March 19, 2013. Randall D. Young for Robert L. Tritt by power of attorney 2013-05-08