X0303 4 2009-01-25 0000097210 TERADYNE, INC TER 0001198621 BRADLEY MICHAEL A TERADYNE, INC. 600 RIVERPARK DRIVE NORTH READING MA 01864 1 1 0 0 CEO and President Common Stock 2009-01-25 4 M 0 27288 0 A 194306 D Common Stock 2009-01-26 4 F 0 9415 0 D 184891 D Common Stock 2009-01-26 4 M 0 18783 0 A 203674 D Common Stock 2009-01-26 4 F 0 5964 0 D 197710 D Restricted Stock Units 0 2009-01-25 4 M 0 27288 0 A Common Stock 27288 81864 D Restricted Stock Units 0 2009-01-26 4 M 0 18783 0 A Common Stock 18783 37566 D Shares/units withheld but not issued to satisfy certain tax withholding obligations. Indicates conversion upon vesting of 25% of the time-based Restricted Stock Units (RSU's) granted on January 25, 2008. The remaining portion will vest in three equal installments annually on the anniversary of the grant. Indicates conversion upon vesting of 25% of the time-based RSU's granted on January 26, 2007. The remaining portion will vest in two equal installments annually on the anniversary of the grant. \s\Eileen Casal, by power of attorney 2009-01-27