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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
714603	Dst Systems Inc	DST	Services-Computer Processing & Data Preparation (7374)	431581814

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1274416	J Steven Towle	333 West 11Th Street Kansas City MO 64105	President Of Subsidiary	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2012-03-15	10,000	$39.34	52,835	No	4	M	Direct
Common Stock	Acquisiton	2012-03-15	5,000	$41.87	57,835	No	4	M	Direct
Common Stock	Disposition	2012-03-15	15,000	$55.04	42,835	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2012-03-15	10,000	$39.34	10,000	$39.34
Common Stock	Stock Option (right to buy)	Disposition	2012-03-15	5,000	$41.87	5,000	$41.87

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2006-12-16	2013-12-16	No	4	M	Direct
9,315	2007-02-10	2014-02-10	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	1,140	Indirect	Deferred Compensation
Common Stock	743	Indirect	401(k)

Footnotes

This transaction was executed in multiple trades at prices ranging from $55.01 to $55.07. 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.
Held through Boston Financial Data Services, Inc. Officers Deferred Compensation Plan
743 shares are allocated to the Reporting Persons' account in the 401(k) Profit Sharing Plan of Issuer. The acquisition is exempt pursuant to Rule 16b-3c).