Sec Form 4 Filing - Hooley Stephen C @ DST SYSTEMS INC - 2018-04-16

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 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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Hooley Stephen C 2. Issuer Name and Ticker or Trading Symbol DST SYSTEMS INC [ DST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chairman, CEO & President (Last) (First) (Middle) 333 WEST 11TH STREET 3. Date of Earliest Transaction (MM/DD/YY) 04/16/2018 (Street) KANSAS CITY, MO64105 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 A 65,636 ( 1 ) A $ 0 238,568 D Common Stock 04/16/2018 A 104,480 ( 1 ) A $ 0 343,048 D Common Stock 04/16/2018 D 343,048 ( 2 ) D $ 84 0 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Stock Option $ 21.9125 04/16/2018 D 80,000 ( 3 ) 02/14/2011 12/14/2019 Common Stock 80,000 $ 62.0875 0 D Stock Option $ 23.755 04/16/2018 D 77,280 ( 4 ) 12/01/2014 12/01/2021 Common Stock 77,280 $ 60.245 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hooley Stephen C 333 WEST 11TH STREET KANSAS CITY, MO64105 X Chairman, CEO & President Signatures Stephen C. Hooley 04/18/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of accelerated vesting of PSUs pursuant to the terms of that certain Separation Agreement dated as of February 26, 2018 among Mr. Hooley, the Company and SS&C. ( 2 )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 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 and the terms of the Separation Agreement. The Merger became effective on April 16, 2018 (the Effective Time). ( 3 )These performance based options were granted by the Committee on December 14, 2009, and the Committee certified goal achievement on February 24, 2011. These options were canceled in the Merger in exchange for a cash payment of $4,967,000.00, representing the difference between the exercise price of the option ($21.9125 per share) and the merger consideration ($84.00 per share). ( 4 )This option, which provided for vesting in three equal annual installments beginning December 1, 2012, was canceled in the Merger in exchange for a cash payment of $4,655,733.60, representing the difference between the exercise price of the option ($23.7550 per share) and the merger consideration ($84.00 per share).

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.