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 * TRITT ROBERT L   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 __X__ Officer (give title below) _____ Other (specify below) Executive Vice President (Last) (First) (Middle) 333 WEST 11TH STREET 5TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 02/13/2012 (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 02/13/2012   M   17,760 A $ 42.605 32,169 D   Common Stock 02/13/2012   F   1,084 (1) D $ 51.49 31,085 D   Common Stock 02/13/2012   M   32,240 A $ 31.045 63,325 D   Common Stock 02/13/2012   F   4,283 (1) D $ 51.49 59,042 D   Common Stock 02/13/2012   S   44,633 (2) D $ 52.0329 14,409 D   Common Stock               29,201 (3) I ESOP

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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

Employee Stock Option

$ 42.605

02/13/2012

M

17,760

07/09/2005

07/09/2012

Common Stock

17,760

$ 0

0

D

Employee Stock Option

$ 31.045

02/13/2012

M

32,240

02/26/2004

11/01/2012

Common Stock

32,240

$ 0

62,462

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
TRITT ROBERT L 333 WEST 11TH STREET 5TH FLOOR KANSAS CITY, MO 64105			Executive Vice President

Signatures

Randall D. Young for Robert L. Tritt by power of attorney		02/15/2012
**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)	This is the number of shares of Issuer common stock that were withheld from the shares being purchased in order to satisfy the Reporting Person's tax withholding obligation. The withholding of shares ("Allowable Transactions") occurred in accordance with procedures of the Compensation Committee of the Issuer's Board of Directors, which approved the Reporting Person's Allowable Transactions at the time it granted the options to him.
(2)	This transaction was executed in multiple trades at prices ranging from $52.00 to $52.11. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.
(3)	29,201 shares are allocated to the Reporting Person's account in The Employee Stock Option Plan of Issuer. This acquisition is exempt pursuant to Rule 16b-3(c).

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