TERADATA CORP /DE/ — Director's Dealing 2011

May 25, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADATA CORP /DE/ (TDC)
CIK: 0000816761
Period of Report: 2011-05-23

Reporting Person: Davis Saundra (Chief Human Resource Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-23	Common Stock	M	3224	$20.84	Acquired	33541.626	Direct
2011-05-23	Common Stock	S	3224	$54.094	Disposed	30317.626	Direct
2011-05-23	Common Stock	M	3432	$24.87	Acquired	33749.626	Direct
2011-05-23	Common Stock	S	3432	$54.092	Disposed	30317.626	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-23	Employee Stock Option	$20.84	M	3224	Disposed	2016-02-13	Common Stock (3224)	Direct
2011-05-23	Employee Stock Option	$24.87	M	3432	Disposed	2017-02-28	Common Stock (3432)	Direct

Footnotes

F1: The price in Column 4 is a weighted average price. The prices actually received ranged from $54.094 to $54.12. 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.

F2: The price in Column 4 is a weighted average price. The prices actually received ranged from $54.08 to $54.12. 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.

F3: This option vested in four equal annual installments beginning on February 13, 2007.

F4: This option vested in four equal annual installments beginning on March 1, 2008.