Executive Change · Reg FD Disclosure

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): October 8, 2025   ____________________________________________________ KULICKE AND SOFFA INDUSTRIES, INC. (Exact name of registrant as specified in its charter)     ____________________________________________________   Pennsylvania   000-00121   23-1498399 (State or Other Jurisdiction of Incorporation)   (Commission File Number)   (I.R.S. Employer Identification No.)     23A Serangoon North Avenue 5 , #01-01 , Singapore 554369 1005 Virginia Dr. , Fort Washington , PA 19034 (Address of Principal Executive Offices and Zip Code) Registrant’s telephone number, including area code: ( 215 ) 784-6000    N/A (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, Without Par Value KLIC The Nasdaq Global Market Indicate by check mark whether the registrant is an emerging growth company 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 5.02     Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Principal Officers. On October 8, 2025, Chan Pin Chong, who holds the position of Executive Vice President & General Manager, K&S Products & Solutions and is a named officer of Kulicke and Soffa Industries, Inc. (the “Company”), notified the Company that he intends to retire from his position effective December 1, 2025, to dedicate more time to his family. Effective immediately, Ivy Qin, who is the Vice President & General Manager of Wire Bonding, and John Molnar, who is the Vice President & General Manager of Advanced Solutions, will assume Mr. Chong’s duties and report to Dr. Fusen Chen, President and Chief Executive Officer of the Company. Item 7.01     Regulation FD Disclosure On October 14, 2025, the Company issued a press release announcing the Company leadership changes described herein. A copy of the press release is furnished as Exhibit 99.1 and is incorporated by reference. The information contained in this Item 7.01 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 99.1 Press Release dated October 14, 2025 104 Inline XBRL for the cover page of this Current Report on Form 8-K SIGNATURE   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 hereunto duly authorized.     KULICKE AND SOFFA INDUSTRIES, INC.         Date: October 14, 2025 By: /s/ LESTER WONG     Name: Lester Wong     Title: Executive Vice President and Chief Financial Officer (principal financial officer and principal accounting officer)