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: McDonald Darryl (EVP, Applicatns, Bus Dev & CMO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-04	Common Stock	M	11498	$21.01	Acquired	103426.112	Direct
2012-05-04	Common Stock	S	11498	$75.055	Disposed	91928.112	Direct
2012-05-04	Common Stock	M	12292	$20.84	Acquired	104220.112	Direct
2012-05-04	Common Stock	S	12292	$74.907	Disposed	91928.112	Direct
2012-05-04	Common Stock	M	18552	$22.31	Acquired	110480.112	Direct
2012-05-04	Common Stock	S	18552	$74.502	Disposed	91928.112	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-04	Employee Stock Options	$21.01	M	11498	Disposed	2015-03-01	Common Stock (11498)	Direct
2012-05-04	Employee Stock Options	$20.84	M	12292	Disposed	2016-02-13	Common Stock (12292)	Direct
2012-05-04	Employee Stock Options	$22.31	M	18552	Disposed	2016-10-31	Common Stock (18552)	Direct

Footnotes

F1: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.98 to $75.24. 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), (2) and (3) 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 $74.80 to $75.21.

F3: The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.25 to $74.86.

F4: This option is fully exercisable.