POWI / Power Integrations, Inc. - Depositi SEC, Relazione annuale, dichiarazione di delega

Power Integrations, Inc.
US ˙ NasdaqGS ˙ US7392761034

Statistiche di base
LEI 54930085LGXSCIHD5W31
CIK 833640
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Power Integrations, Inc.
SEC Filings (Chronological Order)
Questa pagina fornisce un elenco completo e cronologico dei depositi SEC, esclusi i documenti di proprietà che forniamo altrove.
August 6, 2025 EX-10.5

Employment Agreement, dated as of July 11, 2025, between Power Integrations, Inc. and Jennifer A. Lloyd, PhD

Exhibit 10.5 Power Integrations 5245 Hellyer Avenue San Jose, CA 95138 USA +1 408 414 9200 www.power.com June 15, 2025 Jennifer Lloyd Re: Employment Terms Dear Jennifer: Power Integrations, Inc. (the “Company”) is pleased to offer you the position of Chief Executive Officer subject to the terms described below. You will report to the Board of Directors (the “Board”) and work closely with the Board

August 6, 2025 EX-3.1

Amended and Restated Certificate of Incorporation

Exhibit 3.1 Amended and Restated Certificate of Incorporation of Power Integrations, Inc. Power Integrations, Inc., a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is Power Integrations, Inc. 2. The original name of the corporation was Power Integrations Delaware Corporation. 3. The date of filing of its orig

August 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2025 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-2

August 6, 2025 EX-10.4

Amendment Number Fifteen to the Amended and Restated Wafer Supply Agreement between Power Integrations Ltd. d.b.a. Power Integrations International, Ltd. And Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of June 23, 2025

Exhibit 10.4 CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC. TREATS AS PRIVATE OR CONFIDENTIAL. AMENDMENT NUMBER FIFTEEN TO WAFER SUPPLY AGREEMENT This Amendment Number Fifteen (this “Amendment”), is effective as of June 23, 2025 (the “Amendment Effective Date”), and

August 6, 2025 EX-10.8

Consulting Agreement, dated as of July 11, 2025, between Power Integrations, Inc. and Balu Balakrishnan

Exhibit 10.8 CONSULTING AGREEMENT This Consulting Agreement (this “Agreement”) is made and entered into as of the latest date set forth in the signature block below by and between Power Integrations, Inc. (the “Company”), and Balu Balakrishnan (“Consultant”) (each herein referred to individually as a “Party,” or collectively as the “Parties”), and shall be effective as of the beginning of the day

August 6, 2025 EX-3.2

Amended and Restated Bylaws

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF POWER INTEGRATIONS, INC. TABLE OF CONTENTS Page ARTICLE I STOCKHOLDERS 1 Section 1.1 Annual Meeting 1 Section 1.2 Special Meetings 1 Section 1.3 Notice of Meetings 1 Section 1.4 Quorum 1 Section 1.5 Conduct of the Stockholders' Meeting 1 Section 1.6 Conduct of Business 2 Section 1.7 Notice of Stockholder Business 2 Section 1.8 Proxies and Voting 2 Section

August 6, 2025 EX-10.7

Transition Agreement, dated as of July 11, 2025, between Power Integrations, Inc. and Balu Balakrishnan

Exhibit 10.7 TRANSITION AGREEMENT AND RELEASE This Transition Agreement and Release (“Agreement”) is made by and between Balu Balakrishnan (“Employee”) and Power Integrations, Inc. (the “Company”) (collectively referred to as the “Parties” or individually referred to as a “Party”). WHEREAS, Employee has been employed at-will by the Company as the Company’s Chief Executive Officer; WHEREAS, Employe

August 6, 2025 EX-10.6

Chief Executive Officer Benefits Agreement, dated as of July 21, 2025, between Power Integrations, Inc. and Jennifer A. Lloyd, PhD

Exhibit 10.6 POWER INTEGRATIONS, INC. EXECUTIVE OFFICER BENEFITS AGREEMENT THIS EXECUTIVE OFFICER BENEFITS AGREEMENT (the “Agreement”) is made and entered into as of July 21, 2025 (the “Effective Date”), by and between POWER INTEGRATIONS, INC., a Delaware corporation, (the “Company”) and Jennifer Lloyd (“Executive”). RECITALS A.Executive is the Chief Executive Officer of the Company and possesses

August 6, 2025 EX-99.1

Power Integrations Reports Second-Quarter Financial Results Revenues increased nine percent year-over-year to $115.9 million Company repurchased 706 thousand shares during the quarter for $32.6 million

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased nine percent year-over-year to $115.9 million Company repurchased 706 thousand shares during the quarter for $32.6 million SAN JOSE, CALIF. – August 6, 2025 – Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended June 30, 2025. Net revenues for the second quarter were $11

August 6, 2025 EX-10.2

Cash Compensation of Outside Directors

Exhibit 10.2 Cash Compensation of Outside Directors Cash Compensation of Non-Employee Directors is as follows: Annual Retainer: $60,000 Additional Annual Retainer for Lead Independent Director of the Board (if an independent member of the Board): $30,000 Additional Annual Retainer for the Lead Director of Cybersecurity: $7,500 Additional Annual Retainer for Audit Committee members: Chairman: $25,0

August 6, 2025 EX-10.3

Directors Equity Compensation Program

Exhibit 10.3 Directors Equity Compensation Program Initial and annual grants will be made to outside directors primarily under the Power Integrations, Inc. 2016 Incentive Award Plan (the “2016 Plan”) as follows (the “Directors Equity Compensation Program”): 1. Each Non-Employee Director shall be a participant in the Directors Equity Compensation Program; 2. On the first trading day of July in each

August 6, 2025 8-K

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): August 6, 2025 Power Integrations

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): August 6, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of

August 6, 2025 EX-10.1

Power Integrations, Inc. Amended and Restated 2016 Incentive Award Plan

Exhibit 10.1 Power Integrations, Inc. 2016 Incentive Award Plan (As Approved by the Board of Directors on March 13, 2019) (As Approved by the Stockholders on May 22, 2019) (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) (As Approved by the Board of Directors on March 11, 2021) (As Approved by the Stockholders on May 21, 2021) (As Approved by the Board of Directors on March 13, 2025

July 17, 2025 EX-99.1

Power Integrations Names Jennifer Lloyd as Its Next CEO Analog industry veteran to succeed longtime leader Balu Balakrishnan

Exhibit 99.1 Power Integrations Names Jennifer Lloyd as Its Next CEO Analog industry veteran to succeed longtime leader Balu Balakrishnan SAN JOSÉ, CALIF. – July 14, 2025 – Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today announced that Jennifer A. Lloyd, PhD will be the company’s next chief executive officer, succeeding

July 17, 2025 8-K

Financial Statements and Exhibits

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): July 11, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of i

May 16, 2025 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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): May 15, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of in

May 16, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 94-3065014 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.R.S. Employer Identification No.) 5245 Hellyer Avenue, San Jose, California, 95138 (Addre

May 16, 2025 EX-1.1

Exhibit 1.01 - Conflict Minerals Report for the reporting period from January 1, 2024 to December 31, 2024

EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2024 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations,” “we,” “our,” and “us”) for the calendar year ended December 31, 2024, presented to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended. The Rule was

May 12, 2025 EX-10.5

Amendment to the Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Sunil Gupta

Exhibit 10.5 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Sunil Gupta (“Executive’’). RECITALS A.The Company and Executive previously enter

May 12, 2025 EX-99.1

Power Integrations Reports First-Quarter Financial Results Revenues increased 15 percent year-over-year to $105.5 million; GAAP earnings were $0.15 per diluted share; non-GAAP earnings were $0.31 per diluted share New $50M share-repurchase authorizat

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues increased 15 percent year-over-year to $105.5 million; GAAP earnings were $0.15 per diluted share; non-GAAP earnings were $0.31 per diluted share New $50M share-repurchase authorization follows completion of prior $50M buyback SAN JOSE, CALIF. – May 12, 2025 – Power Integrations (NASDAQ: POWI) today announced financia

May 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2025 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-

May 12, 2025 EX-10.7

Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Vikram Balakrishnan

Exhibit 10.7 POWER INTEGRATIONS, INC. EXECUTIVE OFFICER BENEFITS AGREEMENT This Executive Officer Benefits Agreement (the “Agreement”) is made and entered into as of January 28, 2025 (the “Effective Date”), by and between Power Integrations, Inc., a Delaware corporation, (the “Company”) and Vikram Balakrishnan (“Executive”). Recitals A.Executive is an Executive Officer of the Company and possesses

May 12, 2025 EX-10.4

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Radu Barsan

Exhibit 10.4 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Radu Barsan (“Executive’’). RECITALS A.The Company and Executive previously enter

May 12, 2025 EX-10.1

Amendment to the Amended and Restated Chief Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Balu Balakrishnan

Exhibit 10.1 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Balu Balakrishnan (“Executive’’). RECITALS A.The Company and Executive previously

May 12, 2025 EX-10.2

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Sandeep Nayyar

Exhibit 10.2 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Sandeep Nayyar (“Executive’’). RECITALS A.The Company and Executive previously en

May 12, 2025 EX-10.9

Amendment Number Fourteen to the Amended and Restated Wafer Supply Agreement between Power Integrations Ltd. d.b.a. Power Integrations International, Ltd. And Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of September 16, 2024

Exhibit 10.9 CERTAIN IDENTIFIED INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE OF INFORMATION THAT POWER INTEGRATIONS, INC. TREATS AS PRIVATE OR CONFIDENTIAL. AMENDMENT NUMBER FOURTEEN TO WAFER SUPPLY AGREEMENT This Amendment Number Fourteen (the "Amendment"), is effective as of September 16, 2024 (the "Amendment E

May 12, 2025 EX-10.6

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Clifford Walker

Exhibit 10.6 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Clifford J. Walker (“Executive’’). RECITALS A.The Company and Executive previousl

May 12, 2025 EX-10.10

Amendment Number Thirteen to Wafer Supply Agreement, between Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.10 CERTAIN IDENTIFIED INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE OF INFORMATION THAT POWER INTEGRATIONS, INC. TREATS AS PRIVATE OR CONFIDENTIAL. AMENDMENT NUMBER THIRTEEN TO WAFER SUPPLY AGREEMENT This Amendment Number Thirteen[***]mendment"), effective as of March 26, 2025 (the "Amendment Effective

May 12, 2025 EX-10.3

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Doug Bailey

Exhibit 10.3 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this “Amendment”) is made and entered into as of January 28, 2025 by and between Power Integrations, Inc., a Delaware Corporation (the “Company”) and Doug Bailey (“Executive’’). RECITALS A.The Company and Executive previously enter

May 12, 2025 EX-10.8

Executive Officer Benefits Agreement, dated as of January 28, 2025, between Power Integrations, Inc. and Roland Saint Pierre

Exhibit 10.8 POWER INTEGRATIONS, INC. EXECUTIVE OFFICER BENEFITS AGREEMENT THIS EXECUTIVE OFFICER BENEFITS AGREEMENT (the “Agreement”) is made and entered into as of January 28, 2025 (the “Effective Date”), by and between POWER INTEGRATIONS, INC., a Delaware corporation, (the “Company”) and Roland Saint-Pierre (“Executive”). RECITALS A.Executive is an Executive Officer of the Company and possesses

May 12, 2025 8-K

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): May 12, 2025 Power Integrations,

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): May 12, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of in

March 31, 2025 DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 31, 2025 DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 19, 2025 PRE 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 7, 2025 8-K

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): February 3, 2025 Power Integratio

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): February 3, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer o

February 7, 2025 EX-99.1

Power Integrations CEO Balu Balakrishnan to Retire Will remain CEO until successor is in place and then continue as executive chairman to ensure smooth transition

Exhibit 99.1 Power Integrations CEO Balu Balakrishnan to Retire Will remain CEO until successor is in place and then continue as executive chairman to ensure smooth transition SAN JOSE, CALIF. – February 6, 2025 – Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today announced that Balu Balakrishnan, the company’s CEO since 2

February 7, 2025 EX-19.1

Insider Trading Policy

Exhibit 19.1 POWER INTEGRATIONS, INC. Insider Trading Policy Effective 01/01/02 Revised 12/23/2024 Purpose To implement a policy and procedure designed to prevent all employees, whether or not they are “corporate insiders” from engaging in insider trading and, thus, to satisfy the Company’s obligations under “The Insider Trading and Securities Fraud Enforcement Act of 1988”. Policy’s Duration This

February 7, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-234

February 6, 2025 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues increased 18 percent year-over-year to $105.2 million ; GAAP earnings were $0.16 per diluted share; non-GAAP earnings were $0.30 per diluted share

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues increased 18 percent year-over-year to $105.2 million ; GAAP earnings were $0.16 per diluted share; non-GAAP earnings were $0.30 per diluted share SAN JOSE, CALIF. – February 6, 2025 – Power Integrations (NASDAQ: POWI) today announced financial results for the quarter and year ended December 3

February 6, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 6, 2025 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer o

November 6, 2024 EX-99.1

Power Integrations Reports Third-Quarter Financial Results Revenues were $115.8 million; GAAP earnings were $0.25 per diluted share; non-GAAP earnings were $0.40 per diluted share Announces five-percent dividend increase and $50 million share-repurch

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues were $115.8 million; GAAP earnings were $0.25 per diluted share; non-GAAP earnings were $0.40 per diluted share Announces five-percent dividend increase and $50 million share-repurchase authorization SAN JOSE, CALIF. – November 6, 2024 – Power Integrations (NASDAQ: POWI) today announced financial results for the quart

November 6, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): November 6, 2024 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer o

November 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number

September 4, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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): September 3, 2024 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer

August 6, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): August 6, 2024 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of

August 6, 2024 EX-99.1

Power Integrations Reports Second-Quarter Financial Results Quarterly revenues were $106.2 million; GAAP earnings were $0.09 per diluted share; non-GAAP earnings were $0.28 per diluted share

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Quarterly revenues were $106.2 million; GAAP earnings were $0.09 per diluted share; non-GAAP earnings were $0.28 per diluted share SAN JOSE, CALIF. – August 6, 2024 – Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended June 30, 2024. Net revenues for the second quarter were $106.2 million

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-2

May 21, 2024 8-K

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): May 17, 2024 Power Integrations,

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): May 17, 2024 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of in

May 7, 2024 EX-99.1

Power Integrations Reports First-Quarter Financial Results Quarterly revenues were $91.7 million; GAAP earnings were $0.07 per diluted share; non-GAAP earnings were $0.18 per diluted share

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Quarterly revenues were $91.7 million; GAAP earnings were $0.07 per diluted share; non-GAAP earnings were $0.18 per diluted share SAN JOSE, CALIF. – May 7, 2024 – Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended March 31, 2024. Net revenues for the first quarter were $91.7 million, up t

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2024 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-

May 7, 2024 8-K

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): May 7, 2024 Power Integrations, I

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): May 7, 2024 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of inc

May 7, 2024 EX-10.1

Amendment Number Twelve to Wafer Supply Agreement, effective as of February 26, 2024 by Power Integrations International Ltd. and Seiko Epson Corporation

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

May 3, 2024 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2023

EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2023 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations,” “we,” “our,” and “us”) for the calendar year ended December 31, 2023, presented to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended. The Rule was

May 3, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 (State or other jurisdiction of incorporation or organization) (Commission File Number) 5245 Hellyer Avenue, San Jose, California, 95138 (Address of principal executive offices) (Zip Code) Su

March 29, 2024 DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 29, 2024 DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 13, 2024 SC 13G/A

POWI / Power Integrations, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01726-powerintegrationsinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 13)* Name of issuer: Power Integrations Inc Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to

February 13, 2024 SC 13G/A

POWI / Power Integrations, Inc. / Neuberger Berman Group LLC Passive Investment

SC 13G/A 1 formsc13ga-02132024090228.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 12)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 12, 2024 EX-97

Incentive Compensation Recoupment Policy

Exhibit 97 POWER INTEGRATIONS, INC. INCENTIVE COMPENSATION RECOUPMENT POLICY 1. INTRODUCTION The Compensation Committee (the “Compensation Committee”) of the Board of Directors (the “Board”) of Power Integrations, Inc., a Delaware corporation (the “Company”), has determined that it is in the best interests of the Company and its stockholders to adopt this Incentive Compensation Recoupment Policy (

February 12, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-234

February 8, 2024 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues were $89.5 million; GAAP earnings were $0.25 per diluted share; non-GAAP earnings were $0.22 per diluted share Company repurchased 680 thousand shares during the quarter for $47 million SAN JOSE, Calif.-(BUSINESS WIRE)-February 8, 2024-Power Integrations (NASDAQ: POWI) today announced financia

February 8, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): February 8, 2024 Power Integrations, Inc.

November 7, 2023 EX-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

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

November 7, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2023 Power Integrations, Inc.

November 7, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2023 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number

November 7, 2023 EX-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

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

November 7, 2023 EX-99.1

Power Integrations Reports Third-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues increased two percent sequentially to $125.5 million; GAAP earnings were $0.34 per diluted share; non-GAAP earnings were $0.46 per diluted share Quarterly dividend rises by five percent to $0.20 per share SAN JOSE, Calif.-(BUSINESS WIRE)-November 7, 2023-Power Integrations (NASDAQ: POWI) today announced financial resu

November 7, 2023 EX-10.3

Amended and Restated Wafer Supply Agreement between us and OKI Electric Industry Co., Ltd., dated as of April 1, 2003

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

November 7, 2023 EX-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.

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

November 7, 2023 EX-10.2

Wafer Supply Agreement between us and ZMD Analog Mixed Signal Services GmbH & Co. KG, dated as of May 23, 2003

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY [***], HAS BEEN OMITTED BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) IS THE TYPE THAT POWER INTEGRATIONS INC.

August 3, 2023 EX-99.1

Power Integrations Reports Second-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased 16 percent sequentially to $123.2 million; GAAP earnings were $0.26 per diluted share; non-GAAP earnings were $0.36 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-August 3, 2023-Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended June 30, 2023. Net revenues for the

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-2

August 3, 2023 EX-10.1

Third Amendment to Credit Agreement, dated June 28, 2023 between Power Integrations, Inc. and Wells Fargo Bank, National Association

Exhibit 10.1 THIRD AMENDMENT TO CREDIT AGREEMENT THIS AMENDMENT TO CREDIT AGREEMENT (this "Amendment") dated June 28, 2023, is entered into by and between POWER INTEGRATIONS, INC., a Delaware corporation (“Borrower"), and WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank"). RECITALS WHEREAS, Borrower is currently indebted to Bank pursuant to the terms and conditions of that certain Credit Agreement be

August 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 Power Integrations, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 Power Integrations, Inc.

May 26, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 (State or other jurisdiction of incorporation or organization) (Commission File Number) 5245 Hellyer Avenue, San Jose, California, 95138 (Address of principal executive offices) (Zip Code) Su

May 26, 2023 EX-1.01

Exhibit 1.01 - Conflict Minerals Report for the reporting period from January 1, 2022 to December 31, 2022

EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2022 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations,” “we,” “our,” and “us”) for the calendar year ended December 31, 2022, presented to comply with Rule 13p-1 (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended. The Rule was

May 23, 2023 8-K

Submission of Matters to a Vote of Security Holders

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): May 19, 2023 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 000-23441 94-3065014 (State or other jurisdiction (Commission (IRS Employer of in

May 4, 2023 EX-99.1

Power Integrations Reports First-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues were $106.3 million; GAAP earnings were $0.12 per diluted share; non-GAAP earnings were $0.25 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-May 4, 2023-Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended March 31, 2023. Net revenues for the first quarter were $106.3 million,

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-

May 4, 2023 EX-10.1

Amendment Number Eleven to Wafer Supply Agreement, effective as of September 16, 2022 by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.1 [ ] = Certain identified information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) is the type of information that Power Integrations, Inc. treats as private or confidential. AMENDMENT NUMBER ELEVEN TO WAFER SUPPLY AGREEMENT This Amendment Number Eleven (the "Amendment"), effective as of September 16, 2022 (the "Amendment Effec

May 4, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 Power Integrations, Inc.

March 31, 2023 DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 31, 2023 DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 10, 2023 SC 13G/A

POWI / Power Integrations Inc / Neuberger Berman Group LLC - NONE Passive Investment

SC 13G/A 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 11)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

February 9, 2023 SC 13G/A

POWI / Power Integrations Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01697-powerintegrationsinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 12)* Name of issuer: Power Integrations Inc. Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box t

February 7, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

February 6, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): February 6, 2023 Power Integrations, Inc.

February 6, 2023 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues were $124.8 million; GAAP earnings were $0.40 per diluted share; non-GAAP earnings were $0.48 per diluted share $18.7 million used for share repurchases in the fourth quarter with $81.3 million remaining on authorization at quarter-end; quarterly dividend rising by six percent to $0.19 per sha

December 22, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): December 21, 2022 Power Integrations, Inc.

November 2, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

November 2, 2022 EX-99.1

Power Integrations Reports Third-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues were $160.2 million; GAAP earnings were $0.80 per diluted share; non-GAAP earnings were $0.84 per diluted share Announces $100 million repurchase authorization SAN JOSE, Calif.-(BUSINESS WIRE)-November 2, 2022-Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended September 30, 2022.

November 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2022 Power Integrations, Inc.

October 28, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 25, 2022 Power Integrations, Inc.

September 9, 2022 SC 13G/A

POWI / Power Integrations Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Power Integrations Inc. Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: August 31, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

August 4, 2022 EX-10.2

Executive Officer Benefits Agreement, dated as of August 1, 2022, between Power Integrations, Inc. and Yang Chiah Yee

? Exhibit 10.2 POWER INTEGRATIONS, INC. ? LETTER AGREEMENT RE: EXECUTIVE OFFICER BENEFITS AGREEMENT ? This Letter Agreement Re: Executive Officer Benefits Agreement (the ?Letter Agreement?) is made and entered into as of August 1, 2022 (the ?Effective Date?), by and between Power Integrations, Inc., a Delaware corporation, (the ?Company?) and Yang Chiah Yee (?Executive?). Whereas, Executive is an

August 4, 2022 EX-10.1

Executive Officer Benefits Agreement, dated as of August 1, 2022, between Power Integrations, Inc. and Sunil Gupta

? Exhibit 10.1 POWER INTEGRATIONS, INC. ? LETTER AGREEMENT RE: EXECUTIVE OFFICER BENEFITS AGREEMENT ? This Letter Agreement Re: Executive Officer Benefits Agreement (the ?Letter Agreement?) is made and entered into as of August 1, 2022 (the ?Effective Date?), by and between Power Integrations, Inc., a Delaware corporation, (the ?Company?) and Sunil Gupta (?Executive?). Whereas, Executive is an exe

August 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 Power Integrations, Inc.

August 4, 2022 EX-10.3

Amendment Number Eight to the Amended and Restated Wafer Supply Agreement between Power Integrations International, Ltd. and OKI Semiconductor Co., Ltd., effective as of July 26, 2017

Exhibit 10.3 [*] = Certain identified information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) is the type of information that Power Integrations, Inc. treats as private or confidential. ? AMENDMENT NUMBER EIGHT TO THE AMENDED AND RESTATED WAFER SUPPLY AGREEMENT This Amendment Number Eight (the ?Amendment?) effective as of July 26, 2017 (t

August 4, 2022 EX-99.1

Power Integrations Reports Second-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased two percent year-over-year to $184 million; GAAP earnings were $0.96 per diluted share; non-GAAP earnings per diluted share grew 24 percent year-over-year to $1.03 SAN JOSE, Calif.-(BUSINESS WIRE)-August 4, 2022-Power Integrations (NASDAQ: POWI) today announced financial results for the quarter ended June 3

May 24, 2022 8-K

Submission of Matters to a Vote of Security Holders

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 20, 2022 Power Integrations, Inc.

May 11, 2022 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2021

EX-1.01 2 powi-20220509xex1d01.htm EX-1.01 EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2021 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations”) for the calendar year ended December 31, 2021, presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adop

May 11, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 94-3065014 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 5245 Hellyer Avenue, San Jose, California, 95138 (Address

April 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

April 28, 2022 EX-99.1

Power Integrations Reports First-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues increased five percent year-over-year to $182.1 million; GAAP earnings were $0.77 per diluted share; non-GAAP earnings were $0.93 per diluted share Company repurchased 1.6M shares during the quarter for $135M; $75M added to repurchase authorization SAN JOSE, Calif.-(BUSINESS WIRE)-April 28, 2022-Power Integrations (NA

April 28, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 Power Integrations, Inc.

April 28, 2022 EX-10.1

Amendment Number Thirteen to the Amended and Restated Wafer Supply Agreement between Power Integrations, Ltd. d.b.a. Power Integrations International, Ltd. And Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of February 17, 2022

Exhibit 10.1 [*] = Certain identified information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) is the type of information that Power Integrations, Inc. treats as private or confidential. ? AMENDMENT NUMBER THIRTEEN TO AMENDED AND RESTATED WAFER SUPPLY AGREEMENT ? This Amendment Number Thirteen (the "Amendment"), is effective as of February

March 29, 2022 DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents ? ? SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 29, 2022 DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

? ? ? ? ? ? ? ? ? ? ? ? SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 23, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): March 17, 2022 Power Integrations, Inc.

February 28, 2022 8-K

Financial Statements and Exhibits, Other Events

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): February 27, 2022 Power Integrations, Inc.

February 14, 2022 SC 13G/A

POWI / Power Integrations Inc / Neuberger Berman Group LLC - NONE Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 10)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

February 10, 2022 SC 13G/A

POWI / Power Integrations Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Power Integrations Inc. Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is fil

February 7, 2022 EX-21.1

List of subsidiaries

EXHIBIT 21.1 ? LIST OF SUBSIDIARIES Jurisdiction of Incorporation Power Integrations KK ? Japan Power Integrations Limited ? Cayman Islands Power Integrations Malaysia SDN. BHD. ? Malaysia Power Integrations Singapore Pte. Limited ? Singapore Power Integrations Netherlands B.V. ? Netherlands Power Integrations GmbH ? Germany Power Integrations Italy S.r.l ? Italy Power Integrations (Europe) Limite

February 7, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

February 7, 2022 EX-10.16

Form of Long Term Performance Stock Unit Notice and Agreement under the 2016 Equity Incentive Plan

? Exhibit 10.16 [Form of Agreement for Employees with Executive Officer Benefits Agreement] Power Integrations, Inc. Long Term Performance Stock Unit Grant Notice (2016 Incentive Award Plan) ? Power Integrations, Inc. (the ?Company?), pursuant to its 2016 Incentive Award Plan (the ?Plan?) hereby grants to Participant the Maximum Number of Long Term Performance Stock Units (?PRSUs?) as set forth be

February 3, 2022 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues increased 15 percent year-over-year to $172.7 million; GAAP earnings were $0.66 per diluted share; non-GAAP earnings were $0.83 per diluted share Full-year revenues grew 44 percent to $703.3 million; full-year GAAP earnings were $2.67 per diluted share; non-GAAP earnings grew 92 percent to $3.

February 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2022 Power Integrations, Inc.

October 28, 2021 EX-99.1

Power Integrations Reports Third-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues increased 46 percent year-over-year to $176.8 million; GAAP earnings were $0.69 per diluted share; non-GAAP earnings were $0.84 per diluted share Quarterly dividend rises to $0.15 per share; $50M added to repurchase authorization SAN JOSE, Calif.-(BUSINESS WIRE)-October 28, 2021-Power Integrations (Nasdaq: POWI) today

October 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2021 Power Integrations, Inc.

October 28, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2021 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

July 29, 2021 EX-10.3

Second Amendment to Credit Agreement, dated June 7, 2021 by and between Power Integrations, Inc. and Wells Fargo Bank, National Association

Exhibit 10.3 SECOND AMENDMENT TO CREDIT AGREEMENT ? ? THIS AMENDMENT TO CREDIT AGREEMENT (this "Amendment") dated June 7, 2021, is entered into by and between POWER INTEGRATIONS, INC., a Delaware corporation ("Borrower"), and WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank"). ? RECITALS ? WHEREAS, Borrower is currently indebted to Bank pursuant to the terms and conditions of that certain Credit Agre

July 29, 2021 EX-99.1

Power Integrations Reports Second-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased 69 percent year-over-year to a record $180.1 million; GAAP earnings were $0.68 per diluted share; non-GAAP earnings were $0.83 per diluted share Cash flow from operations for the second quarter was $66.8 million SAN JOSE, Calif.-(BUSINESS WIRE)-July 29, 2021-Power Integrations (Nasdaq: POWI) today announced

July 29, 2021 EX-10.2

Power Integrations, Inc. Amended and Restated 2016 Incentive Award Plan

Exhibit 10.2 Power Integrations, Inc. 2016 Incentive Award Plan (As Approved by the Board of Directors on March 13, 2019) (As Approved by the Stockholders on May 22, 2019) (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) (As Approved by the Board of Directors on March 11, 2021) (As Approved by the Stockholders on May 21, 2021) ? 1.General. (a)Eligible Award Recipients. Employees, Di

July 29, 2021 S-8

As filed with the Securities and Exchange Commission on July 29, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Power Integrations, I

As filed with the Securities and Exchange Commission on July 29, 2021 Registration No.

July 29, 2021 EX-10.4

Amendment Number Three to the Amended and Restated Wafer Supply Agreement between Power Integrations International, Ltd. And X-FAB Semiconductor Foundries AG, effective as of April 21, 2021

Exhibit 10.4 [ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) is the type of information that Power Integrations, Inc. treats as private or confidential. ? ? ? AMENDMENT NUMBER THREE TO WAFER SUPPLY AGREEMENT ? ? This Amendment Number Three (the ?Amendment?) is effective as of April 21, 2021 and amends th

July 29, 2021 EX-10.1

1997 Employee Stock Purchase Plan, as amended

? Exhibit 10.1 Power Integrations, Inc. Amended and Restated 1997 Employee Stock Purchase Plan ? (As Approved by the Board on March 17, 2016) (As Approved by the Stockholders on May 13, 2016) (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) (As Approved by the Board of Directors on March 11, 2021) (As Approved by the Stockholders on May 21, 2021) ? 1. Establishment, Purpose and Term

July 29, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2021 Power Integrations, Inc.

July 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2021 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

July 29, 2021 EX-10.5

Executive Officer Benefits Agreement, dated as of June 14, 2021, between Power Integrations, Inc. and Yang Chiah Yee

Exhibit 10.5 POWER INTEGRATIONS, INC. EXECUTIVE OFFICER BENEFITS AGREEMENT ? This Executive Officer Benefits Agreement (the ?Agreement?) is made and entered into as of June 14, 2021 (the ?Effective Date?), by and between Power Integrations, Inc., a Delaware corporation, (the ?Company?) and Yang Chiah Yee (?Executive?). ? Recitals A.Executive is an Executive Officer of the Company and possesses val

May 25, 2021 8-K

Submission of Matters to a Vote of Security Holders

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 21, 2021 Power Integrations, Inc.

May 21, 2021 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2020

EX-1.01 2 powi-20210521xex1d01.htm EX-1.01 EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2020 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations”) for the calendar year ended December 31, 2020, presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adop

May 21, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter)

? ? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 29, 2021 EX-99.1

Power Integrations Reports First-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues increased 58 percent year-over-year to $173.7 million; GAAP earnings were $0.65 per diluted share; non-GAAP earnings were $0.76 per diluted share Share-repurchase authorization increased by $50 million SAN JOSE, Calif.-(BUSINESS WIRE)-April 29, 2021-Power Integrations (Nasdaq: POWI) today announced financial results f

April 29, 2021 EX-10.2

Amendment Number Twelve to the Amended and Restated Wafer Supply Agreement, between Power Integrations International, Ltd. and Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of September 17, 2020

Exhibit 10.2 [ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) is the type of information that Power Integrations, Inc. treats as private or confidential. AMENDMENT NUMBER TWELVE TO AMENDED AND RESTATED WAFER SUPPLY AGREEMENT ? This Amendment Number Twelve (the "Amendment"), is effective as of September 17

April 29, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2021 Power Integrations, Inc.

April 29, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q ? (Mark One) ?Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2021 or ?Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

March 29, 2021 DEFA14A

- DEFA14A

? ? ? ? ? ? ? ? ? ? ? ? SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 29, 2021 DEF 14A

1997 Employee Stock Purchase Plan

Table of Contents ? ? SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 26, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): March 22, 2021 Power Integrations, Inc.

March 16, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

? ? ? ? ? ? ? ? ? ? ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): March 11, 2021 Power Integrations, Inc.

February 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* POWER INTEGRATIONS INC (Name of Issuer) (Title of Class of Securities) (CUSIP Number) December 31, 2020

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Power Integrations Inc. Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is file

February 5, 2021 EX-21.1

List of subsidiaries

EXHIBIT 21.1 LIST OF SUBSIDIARIES Jurisdiction of Incorporation Power Integrations KK Japan Power Integrations Limited Cayman Islands Power Integrations Malaysia SDN. BHD. Malaysia Power Integrations Singapore Pte. Limited Singapore Power Integrations Netherlands B.V. Netherlands Power Integrations GmbH Germany Power Integrations Italy S.r.l Italy Power Integrations (Europe) Limited United Kingdom

February 5, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

February 5, 2021 EX-10.37

Amendment Number Four to Wafer Supply Agreement, effective as of April 1, 2015, by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.37 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. AMENDMENT NUMBER FOUR TO WAFER SUPPLY AGREEMENT This Amendment Number Four (the "Amendment"), effective as of April 1, 2015 (the "Amendment Effective Date"), amends the Wa

February 5, 2021 EX-10.73

Executive Officer Benefits Agreement, dated as of February 1, 2021, between Power Integrations, Inc. and Sunil Gupta

Exhibit 10.73 POWER INTEGRATIONS, INC. EXECUTIVE OFFICER BENEFITS AGREEMENT This Executive Officer Benefits Agreement (the “Agreement”) is made and entered into as of February 1, 2021 (the “Effective Date”), by and between Power Integrations, Inc., a Delaware corporation, (the “Company”) and Sunil Gupta (“Executive”). Recitals A.Executive is an Executive Officer of the Company and possesses valuab

February 5, 2021 EX-10.39

Amendment Number Six to Wafer Supply Agreement, effective as of December 8, 2015, by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.39 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. AMENDMENT NUMBER SIX TO WAFER SUPPLY AGREEMENT This Amendment Number Six (the “Amendment") effective as of December 8, 2015 (the “Amendment Effective Date”) amends the Waf

February 5, 2021 EX-10.35

Amendment Number Three to Wafer Supply Agreement, effective as of February 1, 2012, by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.35 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. AMENDMENT NUMBER THREE TO WAFER SUPPLY AGREEMENT This Amendment Number Three (the "Amendment"), effective as of February 1, 2012 (the "Amendment Effective Date"), amends t

February 5, 2021 EX-10.38

Amendment Number Five to Wafer Supply Agreement, effective as of November 2, 2015, by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.38 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. AMENDMENT NUMBER FIVE TO WAFER SUPPLY AGREEMENT This Amendment Number Five (the "Amendment"), effective as of November 2nd, 2015 (the "Amendment Effective Date"), amends t

February 5, 2021 EX-10.36

Development Addendum to Wafer Supply Agreement, dated September 22, 2013, between Seiko Epson Corporation and Power Integrations International Ltd

Exhibit 10.36 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. DEVELOPMENT ADDENDUM TO WAFER SUPPLY AGREEMENT This development addendum (this “ADDENDUM") supplementing the wafer supply agreement between the Parties effective April 1,

February 2, 2021 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Quarterly revenues increased 32 percent year-over-year to $150.7 million; GAAP earnings were $0.45 per diluted share; non-GAAP earnings were $0.60 per diluted share Full-year revenues grew 16 percent to $488.3 million; cash flow from operations was $125.6 million; quarterly dividend increases by 18 percent to $0

February 2, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2021 Power Integrations, Inc.

October 29, 2020 EX-10.2

1997 Outside Directors Stock Option Plan

Exhibit 10.2 Power Integrations, Inc. Amended and Restated 1997 Outside Directors Stock Option Plan (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) 1. Establishment, Purpose and Term of Plan. 1.1 Establishment. The Power Integrations, Inc. 1997 Outside Directors Stock Option Plan (the “Plan”) is hereby established effective as of the effective date of the initial registration by th

October 29, 2020 EX-10.5

Amendment Number Ten to Wafer Supply Agreement, effective as of August 26, 2020 by Power Integrations International Ltd. and Seiko Epson Corporation

Exhibit 10.5 AMENDMENT NUMBER TEN TO WAFER SUPPLY AGREEMENT This Amendment Number Ten (the "Amendment"), effective as of August 26, 2020 (the "Amendment Effective Date"), amends the Wafer Supply Agreement effective April 1, 2005, as amended by Amendment Number One effective December 19, 2008, Amendment Number Two effective September 13, 2010, Amendment Number Three effective February 1, 2012, Amen

October 29, 2020 EX-99.1

Power Integrations Reports Third-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues increased six percent year-over-year to $121.1 million; GAAP earnings were $0.24 per diluted share; non-GAAP earnings were $0.40 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-October 29, 2020-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended September 30, 2020. Net revenues

October 29, 2020 EX-10.3

2007 Equity Incentive Plan, as amended and restated

Exhibit 10.3 Power Integrations, Inc. 2007 Equity Incentive Plan Adopted by the Board: September 10, 2007 Approved by the Stockholders: November 7, 2007 Amended by the Board: January 29, 2008 Amended by the Board: July 28, 2009 Amended by the Board: March 27, 2012 Approved by the Stockholders: June 18, 2012 Termination Date: September 9, 2017 (As Adjusted for the 1-for-1 Stock Dividend on August 1

October 29, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2020 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

October 29, 2020 EX-10.1

1997 Employee Stock Purchase Plan, as amended

Exhibit 10.1 Power Integrations, Inc. Amended and Restated 1997 Employee Stock Purchase Plan (As Approved By the Board on March 17, 2016) (As Approved By the Stockholders on May 13, 2016) (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) 1. Establishment, Purpose and Term of Plan. 1.1 Establishment. The Power Integrations, Inc. 1997 Employee Stock Purchase Plan (the “Plan”) is hereby

October 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - POWER INTEGRATIONS, INC. 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2020 Power Integrations, Inc.

October 29, 2020 EX-10.4

Power Integrations, Inc. Amended and Restated 2016 Incentive Award Plan

Exhibit 10.4 Power Integrations, Inc. 2016 Incentive Award Plan (As Approved by the Board of Directors on March 13, 2019) (As Approved by the Stockholders on May 22, 2019) (As Adjusted for the 1-for-1 Stock Dividend on August 19, 2020) 1. General. (a) Eligible Award Recipients. Employees, Directors and Consultants are eligible to receive Awards. (b) Available Awards. The Plan provides for the gran

July 31, 2020 EX-10.2

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Balu Balakrishnan

Exhibit 10.2 AMENDMENT TO THE AMENDED AND RESTATED CHIEF EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED CHIEF EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Balu Balakrishnan ("Executive"). RECITALS A. The Company and Executive pr

July 31, 2020 EX-10.7

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Sandeep Nayyar

Exhibit 10.7 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Sandeep Nayyar ("Executive"). RECITALS A. The Company and Executive previously entere

July 31, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2020 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

July 31, 2020 EX-10.9

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Clifford Walker

Exhibit 10.9 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Clifford J. Walker ("Executive"). RECITALS A. The Company and Executive previously en

July 31, 2020 EX-10.8

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Raja Petrakian

Exhibit 10.8 AMENDMENT TO THE EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Raja Georges Petrakian ("Executive"). RECITALS A. The Company and Executive previously entered into an Executive Officer Benefi

July 31, 2020 EX-10.4

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Radu Barsan

Exhibit 10.4 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED CHIEF EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Radu Barsan ("Executive"). RECITALS A. The Company and Executive previously ent

July 31, 2020 EX-10.5

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Ben Sutherland

Exhibit 10.5 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Ben Sutherland ("Executive"). RECITALS A. The Company and Executive previously entere

July 31, 2020 EX-10.3

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Douglas Bailey

Exhibit 10.3 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Doug Bailey ("Executive"). RECITALS A. The Company and Executive previously entered i

July 31, 2020 EX-10.6

Amendment to the Amended and Restated Executive Officer Benefits Agreement, dated as of June 1, 2020, between Power Integrations, Inc. and Mike Matthews

Exhibit 10.6 AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT This AMENDMENT TO THE AMENDED AND RESTATED EXECUTIVE OFFICER BENEFITS AGREEMENT (this "Amendment') is made and entered into as of June 1, 2020 by and between Power Integrations, Inc., a Delaware Corporation (the "Company") and Mike Matthews ("Executive"). RECITALS A. The Company and Executive previously entered

July 30, 2020 EX-99.1

Power Integrations Reports Second-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased four percent year-over-year to $106.8 million; GAAP earnings were $0.44 per diluted share; non-GAAP earnings were $0.66 per diluted share Announces 2:1 stock split and dividend increase SAN JOSE, Calif.-(BUSINESS WIRE)-July 30, 2020-Power Integrations (Nasdaq: POWI) today announced financial results for the

July 30, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2020 Power Integrations, Inc.

May 27, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 94-3065014 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 5245 Hellyer Avenue, San Jose, California, 95138 (Address

May 27, 2020 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2019

EX-1.01 2 exhibit1012019.htm EX-1.01 EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2019 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations”) for the calendar year ended December 31, 2019, presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by

May 12, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 8, 2020 Power Integrations, Inc.

May 7, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2020 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

May 7, 2020 EX-10.2

Amendment Number Eleven to the Amended and Restated Wafer Supply Agreement, between Power Integrations International, Ltd. and Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of December 20, 2019

[ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed.

May 7, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2020 Power Integrations, Inc.

May 7, 2020 EX-10.1

Amendment Number Ten to the Amended and Restated Wafer Supply Agreement, between Power Integrations International, Ltd. and Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of December 16, 2019

[ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed.

May 7, 2020 EX-10.3

Amendment Number Nine to Wafer Supply Agreement, effective as of November 1, 2017 by Power Integrations International Ltd. and Seiko Epson Corporation

[ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed.

May 7, 2020 EX-99.1

Power Integrations Reports First-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues increased 23 percent year-over-year to $109.7 million; GAAP earnings were $0.53 per diluted share; non-GAAP earnings were $0.76 per diluted share Cash flow from operations was $26.4 million; quarterly dividend rises to $0.21 per share SAN JOSE, Calif.-(BUSINESS WIRE)-May 7, 2020-Power Integrations (Nasdaq: POWI) today

May 1, 2020 DEFA14A

- DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 20, 2020 DEF 14A

POWI / Power Integrations, Inc. DEF 14A - - DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 20, 2020 DEFA14A

POWI / Power Integrations, Inc. DEFA14A - - DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 17, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): March 11, 2020 Power Integrations, Inc.

February 13, 2020 SC 13G/A

POWI / Power Integrations, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 12, 2020 SC 13G/A

POWI / Power Integrations, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Power Integrations Inc Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed

February 7, 2020 EX-10.62

ON Semiconductor Corporation Term Sheet

Exhibit 10.62 BINDING TERM SHEET This Term Sheet is entered into between Power Integrations, Inc. and its affiliates (collectively, "PI") and ON Semiconductor Corporation and Semiconductor Components Industries, LLC and their affiliates (collectively "ON"). PI and ON are also referred to below individually as a "party" and collectively as the "parties." 1. Once approved by the respective board of

February 7, 2020 EX-10.12

Outside Director Cash Compensation Arrangements

Exhibit 10.12 Cash Compensation of Outside Directors Cash Compensation of Non-Employee Directors is as follows: Annual Retainer: $45,000 Additional Annual Retainer for Chairman of the Board: $30,000 Additional Annual Retainer for Audit Committee members: Chairman: $20,000 Other members: $10,000 Additional Annual Retainer for Compensation Committee members: Chairman: $15,000 Other members: $8,000 A

February 7, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

February 7, 2020 EX-21.1

List of subsidiaries

EXHIBIT 21.1 LIST OF SUBSIDIARIES Jurisdiction of Incorporation Power Integrations KK Japan Power Integrations Limited Cayman Islands Power Integrations Malaysia SDN. BHD. Malaysia Power Integrations Singapore Pte. Limited Singapore Power Integrations Netherlands B.V. Netherlands Power Integrations GmbH Germany Power Integrations Italy S.r.l Italy Power Integrations (Europe) Limited United Kingdom

February 7, 2020 EX-4.1

Description of Power Integrations, Inc. Common Stock

Exhibit 4.1 DESCRIPTION OF POWER INTEGRATIONS, INC. COMMON STOCK The following is a description of the common stock, $0.001 par value (the “Common Stock”), of Power Integrations, Inc. (the “Company”), which is the only security of the Company registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). General The Company is authorized to issue up to 1

February 7, 2020 EX-10.10

Director Equity Compensation Program

Exhibit 10.10 Directors Equity Compensation Program Initial and annual grants will be made to outside directors primarily under the Power Integrations, Inc. 2016 Incentive Award Plan (the “2016 Plan”) as follows (the “Directors Equity Compensation Program”): 1. Each Non-Employee Director shall be a participant in the Directors Equity Compensation Program; 2. On the first trading day of July in eac

February 7, 2020 EX-10.61

ON Semiconductor Corporation Settlement Agreement

Exhibit 10.61 SETTLEMENT AGREEMENT This SETTLEMENT AGREEMENT (the “Agreement”) is entered into by and between Power Integrations, Inc., a Delaware corporation with an office at 5245 Hellyer Avenue, San Jose, California 95138 (together with its Affiliates, as defined below, “PI”), and ON Semiconductor Corporation, a Delaware corporation with an office at 5005 East McDowell Road, Phoenix, Arizona 85

January 30, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): January 30, 2020 Power Integrations, Inc.

January 30, 2020 EX-99.1

Power Integrations Reports Fourth-Quarter and Full-Year Financial Results

Exhibit 99.1 Power Integrations Reports Fourth-Quarter and Full-Year Financial Results Fourth-quarter revenues increased 23 percent year-over-year to $114.5 million Fourth-quarter GAAP earnings were $5.28/diluted share; non-GAAP earnings were $5.60/diluted share; GAAP and non-GAAP earnings include benefit of $4.78/share from litigation settlement SAN JOSE, Calif.-(BUSINESS WIRE)-January 30, 2020-P

October 25, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2019 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

October 24, 2019 EX-99.1

Power Integrations Reports Third-Quarter Financial Results

EX-99.1 2 a52117393ex991.htm EXHIBIT 99.1 Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results GAAP earnings were $0.57 per diluted share; non-GAAP earnings were $0.78 per diluted share Revenues increased four percent year-over-year to $114.2 million; quarterly dividend rises to $0.19 per share SAN JOSE, Calif.-(BUSINESS WIRE)-October 24, 2019-Power Integrations (Nasdaq: POWI) t

October 24, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2019 Power Integrations, Inc.

October 24, 2019 8-K

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securites Exchange Act of 1934 Date of Report (Date of earliest event reported): October 19, 2019 Power Integrations, Inc.

October 9, 2019 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 4, 2019 Power Integrations, Inc.

September 18, 2019 CORRESP

POWI / Power Integrations, Inc. CORRESP - -

September 18, 2019 VIA EDGAR Division of Corporation Finance Office of Electronics and Machinery U.

July 25, 2019 EX-99.1

Power Integrations Reports Second-Quarter Financial Results

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues increased 15 percent sequentially to $102.9 million GAAP earnings were $0.37 per diluted share; non-GAAP earnings were $0.56 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-July 25, 2019-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended June 30, 2019. Net revenues for the se

July 25, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): July 25, 2019 Power Integrations, Inc.

July 25, 2019 S-8

POWI / Power Integrations, Inc. S-8 - - S-8

S-8 1 forms-8725x19.htm S-8 As filed with the Securities and Exchange Commission on July 25, 2019 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Power Integrations, Inc. (Exact name of registrant as specified in its charter) Delaware 94-3065014 (State or other jurisdiction of Incorporati

July 25, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) ☒Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2019 or ☐Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS INC (Exact name of registrant as specified in its charter) Delaware 94-3065014 (State or Other Jurisdiction of Incorporation or Organization) (I.

July 25, 2019 EX-10.1

Amended and Restated 2016 Incentive Award Plan

Exhibit 10.1 POWER INTEGRATIONS, INC. 2016 INCENTIVE AWARD PLAN (AS APPROVED BY THE BOARD OF DIRECTORS ON MARCH 13, 2019) (APPROVED BY THE STOCKHOLDERS ON MAY 22, 2019) 1. General. (a)Eligible Award Recipients. Employees, Directors and Consultants are eligible to receive Awards. (b)Available Awards. The Plan provides for the grant of the following types of Awards: (i) Restricted Stock Unit Awards;

May 24, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 22, 2019 Power Integrations, Inc.

May 23, 2019 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2018

Exhibit EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2018 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations”) for the calendar year ended December 31, 2018, presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange

May 23, 2019 SD

POWI / Power Integrations, Inc. SD - - SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 94-3065014 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 5245 Hellyer Avenue, San Jose, California, 95138 (Address

April 25, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): April 25, 2019 Power Integrations, Inc.

April 25, 2019 EX-99.1

Power Integrations Reports First-Quarter Financial Results GAAP earnings were $0.25 per diluted share; non-GAAP earnings were $0.41 per diluted share; revenues were $89.2 million

EX-99.1 2 a51974942ex991.htm EXHIBIT 99.1 Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results GAAP earnings were $0.25 per diluted share; non-GAAP earnings were $0.41 per diluted share; revenues were $89.2 million SAN JOSE, Calif.-(BUSINESS WIRE)-April 25, 2019-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended March 31, 2019. Net revenues

April 25, 2019 EX-10.2

Amendment Number Nine to the Amended and Restated Wafer Supply Agreement, between Power Integrations International, Ltd. and Lapis Semiconductor Co., Ltd. (formerly OKI Semiconductor Co., Ltd.), effective as of February 6, 2019

[ ] = Certain confidential information contained in this document, marked by brackets, is omitted because it is both (i) not material and (ii) would be competitively harmful if publicly disclosed.

April 25, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2019 or o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

March 28, 2019 DEFA14A

POWI / Power Integrations, Inc. DEFA14A

DEFA14A 1 defa14a2019.htm DEFA14A SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy Statement x De

March 28, 2019 DEF 14A

2016 Incentive Award Plan (incorporated by reference to Appendix A to the Company’s definitive proxy statement on Schedule 14A filed with the Commission on March 28, 2019 (Commission file no. 000-23441)

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 13, 2019 EX-10.52

Amendment Number Two to the Wafer Supply Agreement, effective as of December 1, 2018, between Power Integrations International, Ltd., and X-FAB Semiconductor Foundries GmbH (formerly X-FAB Semiconductor Foundries AG)

[ ] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended.

February 13, 2019 10-K

POWI / Power Integrations, Inc. 10-K (Annual Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-23441 POWER INTEGRATIONS, INC.

February 13, 2019 SC 13G/A

POWI / Power Integrations, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 13, 2019 EX-21.1

List of subsidiaries

EXHIBIT 21.1 LIST OF SUBSIDIARIES Jurisdiction of Incorporation Power Integrations KK Japan Power Integrations Limited Cayman Islands Power Integrations Malaysia SDN. BHD. Malaysia Power Integrations International Limited Cayman Islands Power Integrations Singapore Pte. Limited Singapore Power Integrations Netherlands B.V. Netherlands Power Integrations GmbH Germany Power Integrations Italy S.r.l

February 7, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): February 7, 2019 Power Integrations, Inc.

February 7, 2019 EX-99.1

Power Integrations Reports Fourth-Quarter Financial Results GAAP earnings were $0.77 per diluted share including tax benefit; non-GAAP earnings were $0.54 per diluted share; revenues were $93.3 million Repurchased 488K shares in the quarter; quarterl

EX-99.1 2 a51937753ex991.htm EXHIBIT 99.1 Exhibit 99.1 Power Integrations Reports Fourth-Quarter Financial Results GAAP earnings were $0.77 per diluted share including tax benefit; non-GAAP earnings were $0.54 per diluted share; revenues were $93.3 million Repurchased 488K shares in the quarter; quarterly dividend rises to $0.17 per share SAN JOSE, Calif.-(BUSINESS WIRE)-February 7, 2019-Power Int

February 4, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 29, 2019 Power Integrations, Inc.

January 11, 2019 SC 13G/A

POWI / Power Integrations, Inc. / VANGUARD GROUP INC Passive Investment

powerintegrationsinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7 )* Name of issuer: Power Integrations Inc Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropri

October 25, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 25, 2018 Power Integrations, Inc.

October 25, 2018 EX-99.1

Power Integrations Reports Third-Quarter Financial Results GAAP earnings were $0.59 per diluted share; non-GAAP earnings were $0.77 per diluted share; revenues were $110.1 million Board of directors authorizes use of $80 million for share repurchases

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results GAAP earnings were $0.59 per diluted share; non-GAAP earnings were $0.77 per diluted share; revenues were $110.1 million Board of directors authorizes use of $80 million for share repurchases SAN JOSE, Calif.-(BUSINESS WIRE)-October 25, 2018-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter en

October 25, 2018 10-Q

POWI / Power Integrations, Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2018 or o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

August 10, 2018 SC 13G/A

POWI / Power Integrations, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 06)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) July 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

July 26, 2018 EX-99.1

Power Integrations Reports Second-Quarter Financial Results Revenues were $109.5 million; GAAP earnings were $0.51 per diluted share; non-GAAP earnings were $0.74 per diluted share

Exhibit 99.1 Power Integrations Reports Second-Quarter Financial Results Revenues were $109.5 million; GAAP earnings were $0.51 per diluted share; non-GAAP earnings were $0.74 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-July 26, 2018-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended June 30, 2018. Net revenues for the second quarter were $109.5 millio

July 26, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): July 26, 2018 Power Integrations, Inc.

July 26, 2018 EX-10.1

First Amendment to Credit Agreement, dated April 30, 2018 by and between Power Integrations, Inc. and Wells Fargo Bank, National Association

Exhibit10.1 FIRST AMENDMENT TO CREDIT AGREEMENT THIS AMENDMENT TO CREDIT AGREEMENT (this "Amendment") is entered into as of April 30, 2018, by and between POWER INTEGRATIONS, INC., a Delaware corporation ("Borrower"), and WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank"). RECITALS WHEREAS, Borrower is currently indebted to Bank pursuant to the terms and conditions of that certain Credit Agreement be

July 26, 2018 10-Q

POWI / Power Integrations, Inc. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2018 or o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number 000-23441 POWER INTEGRATIONS, INC.

June 19, 2018 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): June 15, 2018 Power Integrations, Inc.

May 25, 2018 EX-1.01

POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2017

EXHIBIT 1.01 POWER INTEGRATIONS, INC. Conflict Minerals Report For The Year Ended December 31, 2017 Introduction This is the Conflict Minerals Report of Power Integrations, Inc. (“Power Integrations”) for the calendar year ended December 31, 2017, presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commissi

May 25, 2018 SD

POWI / Power Integrations, Inc. SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report POWER INTEGRATIONS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-23441 94-3065014 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 5245 Hellyer Avenue, San Jose, California, 95138 (Address

April 27, 2018 DEFA14A

POWI / Power Integrations, Inc. DEFA14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

April 27, 2018 DEF 14A

POWI / Power Integrations, Inc. DEF 14A

SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

April 27, 2018 EX-10.2

Director Equity Compensation Program, as revised in March 2018

Exhibit10.2 Directors Equity Compensation Program Initial and annual grants will be made to outside directors primarily under the Power Integrations, Inc. 2016 Incentive Award Plan (the “2016 Plan”) as follows (the “Directors Equity Compensation Program”): 1.Each current participant and each individual who would have been eligible to participate in the 1997 Outside Directors Stock Option Plan shal

April 27, 2018 10-Q

POWI / Power Integrations, Inc. 10-Q (Quarterly Report)

10-Q 1 powi-2018331x10q.htm 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-Q (Mark One) x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2018 or o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period fr

April 26, 2018 EX-99.1

Power Integrations Reports First-Quarter Financial Results Revenues were $103.1 million; GAAP earnings were $0.46 per diluted share; non-GAAP earnings were $0.67 per diluted share

Exhibit 99.1 Power Integrations Reports First-Quarter Financial Results Revenues were $103.1 million; GAAP earnings were $0.46 per diluted share; non-GAAP earnings were $0.67 per diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-April 26, 2018-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended March 31, 2018. Net revenues for the first quarter were $103.1 millio

April 26, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): April 26, 2018 Power Integrations, Inc.

March 19, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): March 14, 2018 Power Integrations, Inc.

February 15, 2018 SC 13G/A

POWI / Power Integrations, Inc. / Neuberger Berman Group LLC - NONE Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* POWER INTEGRATIONS INC (Name of Issuer) Common (Title of Class of Securities) 739276103 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

February 14, 2018 10-K

POWI / Power Integrations, Inc. 10-K (Annual Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 0-23441 POWER INTEGRATIONS, INC.

February 14, 2018 EX-21.1

List of subsidiaries

EXHIBIT 21.1 LIST OF SUBSIDIARIES Jurisdiction of Incorporation Power Integrations KK Japan Power Integrations Limited Cayman Islands Power Integrations Malaysia SDN. BHD. Malaysia Power Integrations International Limited Cayman Islands Power Integrations Singapore Pte. Limited Singapore Power Integrations Netherlands B.V. Netherlands Power Integrations GmbH Germany Power Integrations Italy S.r.l

February 12, 2018 SC 13G/A

POWI / Power Integrations, Inc. / VANGUARD GROUP INC Passive Investment

powerintegrationsinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6 )* Name of issuer: Power Integrations Inc Title of Class of Securities: Common Stock CUSIP Number: 739276103 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropri

February 1, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): February 1, 2018 Power Integrations, Inc.

February 1, 2018 EX-99.1

Power Integrations Reports Fourth-Quarter Financial Results Fourth-quarter revenues grew six percent year-over-year to $108.2 million; GAAP net loss of $0.57 per share driven by tax charge; non-GAAP earnings were $0.74 per diluted share Full-year rev

Exhibit 99.1 Power Integrations Reports Fourth-Quarter Financial Results Fourth-quarter revenues grew six percent year-over-year to $108.2 million; GAAP net loss of $0.57 per share driven by tax charge; non-GAAP earnings were $0.74 per diluted share Full-year revenues grew 11 percent to $431.8 million; GAAP earnings were $0.90 per diluted share; non-GAAP earnings were $2.84 per diluted share, up 1

October 26, 2017 EX-99.1

Power Integrations Reports Third-Quarter Financial Results Revenues grew nine percent year-over-year to $111.3 million; cash flow from operations was $24.6 million GAAP earnings were $0.54/diluted share; non-GAAP earnings were $0.78/diluted share

Exhibit 99.1 Power Integrations Reports Third-Quarter Financial Results Revenues grew nine percent year-over-year to $111.3 million; cash flow from operations was $24.6 million GAAP earnings were $0.54/diluted share; non-GAAP earnings were $0.78/diluted share SAN JOSE, Calif.-(BUSINESS WIRE)-October 26, 2017-Power Integrations (Nasdaq: POWI) today announced financial results for the quarter ended

October 26, 2017 EX-10.1

Amendment Number Eight to the Amended and Restated Wafer Supply Agreement between Power Integrations International, Ltd. and OKI Semiconductor Co., Ltd., effective as of July 26, 2017

Exhibit 10.1 [*] = Certain confidential information contained in this document, marked by brackets, is filed with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended. AMENDMENT NUMBER EIGHT TO THE AMENDED AND RESTATED WAFER SUPPLY AGREEMENT This Amendment Number Eight (the ?Amendment?) effective as of July 26, 2017 (the ?Amendment Effect

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