FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * SWEETMAN MARY E   2. Issuer Name and Ticker or Trading Symbol DST SYSTEMS INC [DST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) Sr VP & Chief Human Resources (Last) (First) (Middle) 333 WEST 11TH STREET 3. Date of Earliest Transaction (Month/Day/Year) 04/16/2018 (Street) KANSAS CITY, MO 64105 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 04/16/2018   D   11,691 (1) D $ 84 11,294 D   Common Stock 04/16/2018   D   11,294 (2) D $ 0 0 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SWEETMAN MARY E 333 WEST 11TH STREET KANSAS CITY, MO 64105			Sr VP & Chief Human Resources

Signatures

Mary E. Sweetman		04/18/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	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).
(2)	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.

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