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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
1410634	Saundra Davis	10000 Innovation Drive Dayton OH 45342	Chief Human Resource Officer	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	Disposition	2013-02-14	1,221	$62.15	39,364	No	4	F	Direct
Common Stock	Acquisiton	2013-02-14	10,000	$13.77	49,364	No	4	M	Direct
Common Stock	Disposition	2013-02-14	10,000	$61.64	39,364	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	F	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	Employee Stock Option	Disposition	2013-02-14	10,000	$0.00	10,000	$13.77

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
20,961		2018-12-01	No	4	M	Direct

Footnotes

Shares withheld by the company and disposed of to satisfy tax obligation for performance-based restricted stock units that vested on February 14, 2013.
The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.57 to $61.68. 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.
This option vests in four equal annual installments beginning on December 2, 2009.