POWER INTEGRATIONS INC 10-Q

ITEM 5. OTHER INFORMATION Rule 10b5-1 Trading Plans ​ On August 30, 2023 , Doug Bailey , our Vice President of Marketing , adopted a Rule 10b5-1 trading plan. Mr. Bailey’s Rule 10b5-1 trading plan provides for the potential sale of up to 12,000 shares of our common stock until November 30, 2024. This trading plan was entered into during an open window pursuant to the terms of our Insider Trading Policy. Such Rule 10b5-1 trading plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act and our policies regarding transactions in our securities. ​ During the three months ended September 30, 2023, neither we nor our directors or other executive officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted or terminated any contract, instruction or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act or any “non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K. ​ 29 Table of Contents ​ ITEM 6. EXHIBITS ​ ​ ​ ​ ​ Incorporation by Reference EXHIBIT NUMBER Exhibit Description ​ Form File Number ​ Exhibit/Other Reference ​ Filing Date ​ Filed Herewith ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 3.1 ​ Restated Certificate of Incorporation ​ 10-K ​ 000-23441 ​ 3.1 ​ 2/29/2012 ​ ​ 3.2 ​ Amended and Restated Bylaws ​ 8-K ​ 000-23441 ​ 3.1 ​ 4/26/2013 ​ ​ 4.2 ​ Reference is made to Exhibits 3.1 to 3.2 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 10.1 † ​ Amendment Number One to the Amended and Restated Wafer Supply Agreement between us and OKI Electric Industry Co., Ltd, effective as of August 11, 2004 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 10.2 † ​ Wafer Supply Agreement between us and ZMD Analog Mixed Signal Services GmbH & Co. KG, dated as of May 23, 2003 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 10.3 † ​ Amended and Restated Wafer Supply Agreement between us and OKI Electric Industry Co., Ltd., dated as of April 1, 2003 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 10.4 † ​ Amendment Number One to the Amended and Restated Wafer Supply Agreement between Power Integrations International, Ltd. and XFAB Dresden GmbH & Co. KG, effective as of July 20, 2005 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 10.5 † ​ Amendment Number Five to the Amended and Restated Wafer Supply Agreement between Power Integrations International, Ltd. and X-FAB Dresden GmbH & Co. KG, dated December 23, 2009. ​ ​ ​ ​ ​ ​ ​ ​ ​ X 31.1 ​ Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 31.2 ​ Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 30 Table of Contents ​ ​ ​ ​ ​ Incorporation by Reference EXHIBIT NUMBER Exhibit Description ​ Form File Number ​ Exhibit/Other Reference ​ Filing Date ​ Filed Herewith ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 32.1** ​ Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 32.2** ​ Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.INS ​ XBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.SCH ​ Inline XBRL Taxonomy Extension Schema Document ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.CAL ​ Inline XBRL Taxonomy Extension Calculation Linkbase Document ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.DEF ​ Inline XBRL Taxonomy Extension Definition Linkbase Document ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.LAB ​ Inline XBRL Taxonomy Extension Label Linkbase Document ​ ​ ​ ​ ​ ​ ​ ​ ​ X 101.PRE ​ Inline XBRL Taxonomy Extension Presentation Linkbase Document ​ ​ ​ ​ ​ ​ ​ ​ ​ X 104 ​ Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ All references in the table above to previously filed documents or descriptions are incorporating those documents and descriptions by reference thereto. † Portions of this exhibit have been omitted as being immaterial and the type of information that Power Integrations, Inc. treats as private or confidential. ** The certifications attached as Exhibits 32.1 and 32.2 accompanying this Quarterly Report on Form 10-Q, are not deemed filed with the SEC, and are not to be incorporated by reference into any filing of Power Integrations, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Quarterly Report on Form 10-Q, irrespective of any general incorporation language contained in such filing. ​ ​ 31 Table of Contents ​ 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. ​ ​ POWER INTEGRATIONS, INC. ​ ​ ​ ​ Dated: November 7, 2023 By: /s/ S ANDEEP N AYYAR ​ ​ ​ Sandeep Nayyar ​ ​ ​ Chief Financial Officer ​ ​ ​ (Duly Authorized Officer, Principal Financial Officer and Principal Accounting Officer) ​ ​ ​ 32