Ownership Submission
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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(Print or Type Responses)
1. Name and Address of Reporting Person *
TOWLE STEVEN J
   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)
President of subsidiary
(Last)
(First)
(Middle)
C/O DST SYSTEMS, 333 W. 11TH ST 5TH FL		 3. Date of Earliest Transaction (Month/Day/Year)
02/06/2007
(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 02/06/2007   M   5,000 A $ 42.55 94,975 D  
Common Stock 02/06/2007   M   25,000 A $ 39.335 119,975 D  
Common Stock 02/06/2007   S   1,700 D $ 71.49 118,275 D  
Common Stock 02/06/2007   S   3,700 D $ 71.5 114,575 D  
Common Stock 02/06/2007   S   200 D $ 71.51 114,375 D  
Common Stock 02/06/2007   S   200 D $ 71.52 114,175 D  
Common Stock 02/06/2007   S   300 D $ 71.53 113,875 D  
Common Stock 02/06/2007   S   300 D $ 71.54 113,575 D  
Common Stock 02/06/2007   S   200 D $ 71.56 113,375 D  
Common Stock 02/06/2007   S   400 D $ 71.58 112,975 D  
Common Stock 02/06/2007   S   200 D $ 71.59 112,775 D  
Common Stock 02/06/2007   S   300 D $ 71.64 112,475 D  
Common Stock 02/06/2007   S   800 D $ 71.66 111,675 D  
Common Stock 02/06/2007   S   100 D $ 71.67 111,575 D  
Common Stock 02/06/2007   S   400 D $ 71.68 111,175 D  
Common Stock 02/06/2007   S   1,100 D $ 71.69 110,075 D  
Common Stock 02/06/2007   S   1,700 D $ 71.7 108,375 D  
Common Stock 02/06/2007   S   800 D $ 71.71 107,575 D  
Common Stock 02/06/2007   S   1,800 D $ 71.72 105,775 D  
Common Stock 02/06/2007   S   1,700 D $ 71.73 104,075 D  
Common Stock 02/06/2007   S   3,300 D $ 71.74 100,775 D  
Common Stock 02/06/2007   S   3,100 D $ 71.75 97,675 D  
Common Stock 02/06/2007   S   800 D $ 71.76 96,875 D  
Common Stock 02/06/2007   S   100 D $ 71.77 96,775 D  
Common Stock 02/06/2007   S   100 D $ 71.78 96,675 D  
Common Stock 02/06/2007   S   100 D $ 71.79 96,575 D  
Common Stock               176 (1) I 401(k)

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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
Option to purchase $ 42.55 02/06/2007   M     5,000 02/26/2003 02/26/2012 Common Stock 5,000 $ 0 0 D  
Option to purchase $ 42.55 02/06/2007   M     25,000   (2) 12/16/2013 Common Stock 25,000 $ 0 55,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TOWLE STEVEN J
C/O DST SYSTEMS
333 W. 11TH ST 5TH FL
KANSAS CITY, MO 64105		       President of subsidiary  

Signatures

 Randall D. Young for Steven J. Towle by power of attorney   02/07/2007
**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) The acquisition results from shares acquired in the reporting person's account in the 401(k) Profit Sharing Plan of Issuer. The acquisition is exempt pursuant to Rule 16b-3(c).
(2) One-third became exerciseable on each of 12/16/04, 12/16/05, and 12/16/06.

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