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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
816761	Teradata Corp	TDC	Electronic Computers (3571)	753236470

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1228409	Michael Koehler	11695 Johns Creek Pkwy Johns Creek GA 30097	President And Ceo	Yes	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	2012-02-10	36,776	$24.87	320,607	No	4	M	Direct
Common Stock	Disposition	2012-02-10	36,776	$61.97	283,831	No	4	S	Direct
Common Stock	Acquisiton	2012-02-10	46,945	$0.00	330,776	No	4	A	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option	Disposition	2012-02-10	36,776	$0.00	36,776	$24.87

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2017-02-28	No	4	M	Direct

Footnotes

The total beneficial holdings on this report include 105.871 shares acquired under the Teradata Employee Stock Purchase Plan on January 31, 2012.
The price in Column 4 is a weighted average price. The prices actually received ranged from $61.91 to $62.01. The reporting person has provided to the issuer and will provide any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
Performance-based restricted stock unit award acquired on February 10, 2012, based on the attainment of certain financial performance goals by the issuer.
This option vests in four equal annual installments beginning on March 1, 2008.