X0306 4 2018-04-16 true 0000714603 DST SYSTEMS INC DST 0001315283 Antonellis Joseph C 333 WEST 11TH STREET KANSAS CITY MO 64105 true false false false Common Stock 2018-04-16 4 D false 3340 84 D 0 D Common Stock 2018-04-16 4 D false 3714.5002 84 D 0 I Directors Deferred Fee Plan Consists of shares of common stock 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 Subs 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 phantom stock (that become payable in common stock upon termination of service as a director) under the Directors Deferred Fee Plan that were cancelled in exchange for $84.00 per share pursuant to the terms of the Merger Agreement. Joseph C. Antonellis 2018-04-18