X0306 4 2018-04-16 false 0000714603 DST SYSTEMS INC DST 0001282313 FLEMING DOUGLAS W 333 WEST 11TH STREET KANSAS CITY MO 64105 false true false false VP & Chief Accounting Officer Common Stock 2018-04-16 4 D false 1886 84 D 3224 D Common Stock 2018-04-16 4 D false 3224 0 D 0 D Stock Option 83.1 2018-04-16 4 D false 7118 0 D 2019-04-16 2028-02-23 Common Stock 7118 0 D 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 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 unvested restricted stock units (Unvested RSUs) that were converted, pursuant to the Merger Agreement into unvested RSUs in respect of SS&C common stock, with each unvested RSU converted into 1.70140 RSUs of SS&C. Consists of unvested stock options (Unvested Options) that were converted, pursuant to the Merger Agreement into Unvested Options in respect of SS&C common stock, with each Unvested Option converted into an option to purchase 1.70140 shares of SS&C common stock per share of company common stock. Douglas W. Fleming 2018-04-18