X0202 4 2008-01-25 0000097210 TERADYNE, INC TER 0001275985 HOTCHKISS JEFFREY R TERADYNE, INC. 600 RIVERPARK DRIVE NORTH READING, MA 01864 0 1 0 0 President,SystemTest Division Common Stock 2008-01-26 4 M 0 8537 0 A 30950 D Common Stock 2008-01-28 4 F 0 3174 0 D 27776 D Common Stock 2008-01-26 4 M 0 7043 0 A 34819 D Common Stock 2008-01-28 4 F 0 2237 0 D 32582 D Common Stock 2008-01-26 4 M 0 5069 0 A 37651 D Common Stock 2008-01-28 4 F 0 1610 0 D 36041 D Common Stock 2008-01-26 4 M 0 954 0 A 36995 D Common Stock 2008-01-28 4 F 0 303 0 D 36692 D Restricted Stock Units 0 2008-01-26 4 M 0 8537 0 A Common Stock 8537 31132 D Restricted Stock Units 0 2008-01-26 4 M 0 7043 0 A Common Stock 7043 24089 D Restricted Stock Units 0 2008-01-26 4 M 0 5069 0 A Common Stock 5069 19020 D Restricted Stock Units 0 2008-01-26 4 M 0 954 0 A Common Stock 954 18066 D Restricted Stock Units 0 2008-01-25 4 A 0 29457 0 A Common Stock 29457 47523 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 90,000 options to purchase common stock of Teradyne, Inc. /s/Eileen Casal, General Counsel, by power of attorney 2008-01-29