X0304 4 2012-03-07 0 0000816761 TERADATA CORP /DE/ TDC 0001410631 Harrington Daniel L 17095 VIA DEL CAMPO SAN DIEGO CA 92127 0 1 0 0 EVP, Technology & Support Svcs Common Stock 2012-03-07 4 M 0 5000 13.77 A 61270 D Common Stock 2012-03-07 4 S 0 5000 63.76 D 56270 D Employee Stock Opitons 13.77 2012-03-07 4 M 0 5000 0 D 2018-12-01 Common Stock 5000 85922 D Sale of shares pursuant to Rule 10b5-1 Plan adopted on November 28, 2011. This option vests in four equal annual installments beginning on December 2, 2009. Laura K. Nyquist, Attorney-in-fact for Daniel Harrington 2012-03-08