X0306 4 2013-03-05 0000097210 TERADYNE, INC TER 0001198621 BRADLEY MICHAEL A TERADYNE, INC. 600 RIVERPARK DRIVE NORTH READING MA 01864 1 1 CEO Common Stock 2013-03-05 4 M 0 100800 4.81 A 518255 D Common Stock 2013-03-05 4 S 0 100800 17.28 D 417455 D Common Stock 2013-03-06 4 M 0 35857 4.81 A 453312 D Common Stock 2013-03-06 4 S 0 35857 17.29 D 417455 D Non-qualified Stock Option (Right to Buy) 4.81 2013-03-05 4 M 0 100800 0 D 2010-01-30 2016-01-30 Common Stock 100800 131700 D Non-qualified Stock Option (Right to Buy) 4.81 2013-03-06 4 M 0 35857 0 D 2010-01-30 2016-01-30 Common Stock 35857 95843 D The reported price is based on a weighted average of multiple same-day transactions with prices ranging from $17.25 to $17.39 per share. Full information regarding the number of shares sold at each separate price is available to the Securities and Exchange Commission staff, the Issuer or any security holder of the Issuer upon request. This option is granted under Teradyne's 2006 Equity and Cash Compensation Incentive Plan and is exercisable at the rate of 25% per year, commencing on the date of the first anniversary of the grant, January 30, 2010. /s/ Ryan E. Driscoll, Deputy General Counsel, by power of attorney 2013-03-06