TERADATA CORP /DE/ — Director's Dealing 2010

Mar 8, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADATA CORP /DE/ (TDC)
CIK: 0000816761
Period of Report: 2010-03-04

Reporting Person: STAVROPOULOS WILLIAM S (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-04	Common Stock	M	12000	$12.33	Acquired	40782	Direct
2010-03-04	Common Stock	S	12000	$30.006	Disposed	28782	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-04	Director Stock Option	$12.33	M	12000	Disposed	2011-04-18	Common Stock (12000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2000	Indirect

Footnotes

F1: The price in Column 4 is a weighted average price. The prices actually received ranged from $29.97 to $30.065. 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: This option is fully exercisable.