TERADATA CORP /DE/ — Director's Dealing 2012

May 8, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADATA CORP /DE/ (TDC)
CIK: 0000816761
Period of Report: 2012-05-04

Reporting Person: Davis Saundra (Chief Human Resource Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-04	Common Stock	M	15000	$13.77	Acquired	51255.626	Direct
2012-05-04	Common Stock	S	7512	$75.864	Disposed	43743.626	Direct
2012-05-04	Common Stock	S	7488	$76.522	Disposed	36255.626	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-04	Employee Stock Options	$13.77	M	15000	Disposed	2018-12-01	Common Stock (15000)	Direct

Footnotes

F1: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.32 to $76.17. 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 ranges set forth in footnotes (1) and (2) to this Form 4.

F2: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.37 to $76.58.

F3: This option vests in four equal annual installments beginning on December 2, 2009.