FILED PURSUANT TO RULE 424(b)(3) FILE NO. 333-75632 PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED FEBRUARY 14, 2002) TERADYNE, INC. $400,000,000 3.75% CONVERTIBLE SENIOR NOTES DUE OCTOBER 15, 2006 AND THE COMMON STOCK ISSUABLE UPON THE CONVERSION OF THE NOTES --------------------- This prospectus supplement relates to the resale by the holders of Teradyne, Inc. 3.75% Convertible Senior Notes due October 15, 2006 and the shares of common stock, par value $.125 per share, issuable upon the conversion of the notes. This prospectus supplement should be read in conjunction with, and may not be delivered or utilized without, the prospectus dated February 14, 2002. The terms of the notes are set forth in the prospectus. --------------------- SEE THE "RISK FACTORS" BEGINNING ON PAGE 5 OF THE PROSPECTUS TO READ ABOUT FACTORS THAT YOU SHOULD CONSIDER BEFORE BUYING THE NOTES OR THE COMMON STOCK. --------------------- The information in the table appearing under the heading "Selling Securityholders" in the prospectus is amended by adding the information below with respect to persons not previously listed in the prospectus and by superceding the information with respect to persons previously listed in the prospectus that are listed below: PRINCIPAL AMOUNT AT NUMBER OF MATURITY OF NOTES PERCENTAGE OF CONVERSION BENEFICIALLY OWNED NOTES SHARES THAT NAME THAT MAY BE SOLD OUTSTANDING MAY BE SOLD ---- ------------------- ------------- ----------- TD Securities (USA) Inc............................ 15,500,000 3.88% 596,153 Oppenheimer Convertible Securities Fund............ 3,000,000 * 115,384 RAM Trading Ltd.................................... 10,300,000 2.58% 396,153 ABN Amro Securities LLC............................ 3,500,000 * 134,615 Clinton Multistrategy Master Fund, Ltd............. 7,500,000 1.88% 288,461 Clinton Riverside Convertible Portfolio Limited.... 7,500,000 1.88% 288,461 Jersey (IMA) LTD. ................................. 1,000,000 * 38,461 Libertyview Funds, L.P. ........................... 4,000,000 1.00% 153,846 --------------- * Less than 1% --------------------- The date of this Prospectus Supplement is March 1, 2002.