X0202 4 2008-01-25 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 2008-01-26 4 M 0 31303 0 A 141915 D Common Stock 2008-01-28 4 F 0 10241 0 D 131674 D Common Stock 2008-01-26 4 M 0 25825 0 A 157499 D Common Stock 2008-01-28 4 F 0 8200 0 D 149299 D Common Stock 2008-01-26 4 M 0 18783 0 A 168082 D Common Stock 2008-01-28 4 F 0 5964 0 D 162118 D Common Stock 2008-01-26 4 M 0 3732 0 A 165850 D Common Stock 2008-01-28 4 F 0 1185 0 D 164665 D Restricted Stock Units 0 2008-01-26 4 M 0 31303 0 A Common Stock 31303 115885 D Restricted Stock Units 0 2008-01-26 4 M 0 25825 0 A Common Stock 25825 90060 D Restricted Stock Units 0 2008-01-26 4 M 0 18783 0 A Common Stock 18783 71277 D Restricted Stock Units 0 2008-01-26 4 M 0 3732 0 A Common Stock 3732 67545 D Restricted Stock Units 0 2008-01-25 4 A 0 109152 0 A Common stock 109152 176697 D Shares/units withheld but not issued to satisfy certain tax withholding obligations. Indicates conversion upon vesting of the final portion of the time-based Restricted Stock Units (RSU's) granted on January 26, 2006. Indicates conversion upon vesting of the final portion of the performance-based RSU's granted on January 26, 2006. Indicates conversion upon vesting of 25% of the time-based RSU's granted on January 26, 2007. The remaining portion will vest in three equal installments annually on the anniversary of the grant. Indicates conversion upon vesting of 25% of the performance-based RSU's granted on January 26, 2007. The remaining portion will vest in three equal installments annually on the anniversary of the grant. Each RSU represents the right to receive one share of Teradyne, Inc. common stock. These RSU's are time-based and will vest in four equal installments beginning January 25, 2009. Does not include a total of 796,381 options to purchase common stock of Teradyne, Inc. /s/Eileen Casal, General Counsel, by power of attorney 2008-01-29