X0306 4 2018-08-13 0 0000816761 TERADATA CORP /DE/ TDC 0001410631 Harrington Daniel L 17095 VIA DEL CAMPO SAN DIEGO CA 92127 0 1 0 0 EVP, Customer Support & Svcs Common Stock 2018-08-13 4 S 0 13000 40.35 D 92995 D Common Stock 42273.07 I By 401(k) Plan The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.34 to $40.37. 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. Represents the number of Teradata shares attributable to units in the unitized Teradata stock fund of the Teradata 401(k) Savings Plan as of August 13, 2018. Margaret A. Treese, Attorney-in-fact for Daniel L. Harrington 2018-08-15