X0306 4 2018-04-16 true 0000714603 DST SYSTEMS INC DST 0001193832 YOUNG RANDALL D 333 WEST 11TH STREET KANSAS CITY MO 64105 false true false false VP, Gen Counsel Secretary Common Stock 2018-04-16 4 A false 10356 0 A 28093 D Common Stock 2018-04-16 4 A false 16250 0 A 44343 D Common Stock 2018-04-16 4 D false 41194 84 D 0 I Shares held in Revocable Trust Common Stock 2018-04-16 4 D false 44343 84 D 0 D Consists of accelerated vesting of PSUs pursuant to the terms of that certain Separation Agreement dated as of February 26, 2018 among Mr. Young, the Company and SS&C (the Separation Agreement). Consists of shares of common stock and vested RSUs that were cancelled in exchange for $84.00 per share pursuant to the terms of an Agreement and Plan of Merger (the Merger Agreement) dated as of January 11, 2018 among DST Systems, Inc. (the Company), SS&C Technologies Holdings, Inc. (SS&C) and Diamond Merger Sub, Inc. (Merger Sub), pursuant to which Merger Sub will merge (the Merger) with and into the Company, whereupon the existence of Merger Sub will cease and the Company will become the surviving corporation and an indirect wholly owned subsidiary of SS&C. The Merger became effective on April 16, 2018 (the Effective Time). Consists of shares of common stock, vested RSUs and vested PSUs that were cancelled in exchange for $84.00 per share pursuant to the terms of the Merger Agreement and Separation Agreement. The amounts contained in the footnote are not related to any amounts owed by the Company to Mr. Young. Randall D. Young 2018-04-18