TERADATA CORP /DE/ — Director's Dealing 2010

Jun 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TERADATA CORP /DE/ (TDC)
CIK: 0000816761
Period of Report: 2010-06-14

Reporting Person: Langos Bruce (Chief Operations Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-14	Common Stock	M	5565	$11.11	Acquired	47877	Direct
2010-06-14	Common Stock	S	5565	$33.079	Disposed	42312	Direct
2010-06-14	Common Stock	M	2782	$6.86	Acquired	45094	Direct
2010-06-14	Common Stock	S	2782	$33.075	Disposed	42312	Direct
2010-06-14	Common Stock	M	2782	$5.22	Acquired	45094	Direct
2010-06-14	Common Stock	S	2782	$33.077	Disposed	42312	Direct
2010-06-14	Common Stock	M	5565	$7.37	Acquired	45094	Direct
2010-06-14	Common Stock	S	5565	$33.186	Disposed	42312	Direct
2010-06-14	Common Stock	M	13172	$12.21	Acquired	55484	Direct
2010-06-14	Common Stock	S	13172	$33.16	Disposed	42312	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-06-14	Employee Stock Option	$11.11	M	5565	Disposed	2012-01-24	Common Stock (5565)	Direct
2010-06-14	Employee Stock Option	$6.86	M	2782	Disposed	2012-07-29	Common Stock (2782)	Direct
2010-06-14	Employee Stock Option	$5.22	M	2782	Disposed	2013-02-03	Common Stock (2782)	Direct
2010-06-14	Employee Stock Option	$7.37	M	5565	Disposed	2013-08-04	Common Stock (5565)	Direct
2010-06-14	Employee Stock Option	$12.21	M	13172	Disposed	2014-03-01	Common Stock (13172)	Direct

Footnotes

F1: The price in Column 4 is a weighted average price. The prices actually received ranged from $33.07 to $33.085. 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 $33.061 to $33.08. 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: The price in Column 4 is a weighted average price. The prices actually received ranged from $33.06 to $33.095. 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.

F4: The price in Column 4 is a weighted average price. The prices actually received ranged from $33.175 to $33.21. 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.

F5: This option is fully exercisable.