Bylaw Amendment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549     FORM 8-K     CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 23, 2024     TERADYNE, INC. (Exact Name of Registrant as Specified in Charter)       Massachusetts   001-06462   04-2272148 (State or Other Jurisdiction of Incorporation)   (Commission File Number)   (IRS Employer Identification No.)   600 Riverpark Drive , North Reading , MA   01864 (Address of Principal Executive Offices)   (Zip Code) Registrant’s telephone number, including area code (978) 370-2700 (Former Name or Former Address, if Changed Since Last Report)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, par value $0.125 per share   TER   Nasdaq Stock Market LLC Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐       Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year. On January 23, 2024, the Board of Directors of Teradyne, Inc. (the “Company”) approved the Company’s Amended and Restated Bylaws (as so amended and restated, the “Amended Bylaws”), effective as of such date. The Amended Bylaws clarify the ability of the Company to hold remote, virtual, or hybrid shareholder meetings as permitted under Massachusetts law. The foregoing summary description of the Amended By-Laws is qualified in its entirety by reference to the complete text of the Amended Bylaws, a copy of which is included as Exhibit 3.1 to this Current Report on Form 8-K and is incorporated herein by reference.   Item 9.01. Financial Statements and Exhibits.     (d) Exhibits   3.1    Amended and Restated By-Laws of Teradyne, Inc. 104    Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.       TERADYNE, INC. Dated: January 29, 2024     By:   /s/ Sanjay Mehta     Name:   Sanjay Mehta     Title:   V.P., Chief Financial Officer and Treasurer