0001950047-23-001023.txt : 20230530 0001950047-23-001023.hdr.sgml : 20230530 20230530161713 ACCESSION NUMBER: 0001950047-23-001023 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230530 DATE AS OF CHANGE: 20230530 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: POWER INTEGRATIONS INC CENTRAL INDEX KEY: 0000833640 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 943065014 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-23441 FILM NUMBER: 23976644 BUSINESS ADDRESS: STREET 1: 5245 HELLYER AVE CITY: SAN JOSE STATE: CA ZIP: 95138 BUSINESS PHONE: 4084149200 MAIL ADDRESS: STREET 1: 5245 HELLYER AVE CITY: SAN JOSE STATE: CA ZIP: 95138 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Matthews David MH CENTRAL INDEX KEY: 0001583135 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 5245 HELLYER AVE CITY: SAN JOSE STATE: CA ZIP: 95138 144 1 primary_doc.xml 144 0001583135 XXXXXXXX LIVE 0000833640 POWER INTEGRATIONS, INC. 000-23441 5245 Hellyer Avenue San Jose CA 95138 (408) 414-9200 D. MICHAEL MATTHEWS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Floor New York NY 10004

4429 392199.47 57351296 05/30/2023 NASDAQ Common 02/12/2020 Shares Purchased through Employee Stock Purchase Plan Issuer N 546 02/12/2020 Cash Common 02/13/2020 Shares Purchased through Employee Stock Purchase Plan Issuer N 1928 02/13/2020 Cash Common 04/01/2020 Shares Purchased through Employee Stock Purchase Plan Issuer N 1494 04/01/2020 Cash Common 07/31/2020 Shares Purchased through Employee Stock Purchase Plan Issuer N 256 07/31/2020 Cash Common 01/31/2021 Shares Purchased through Employee Stock Purchase Plan Issuer N 205 01/31/2021 Cash N D. MICHAEL MATTHEWS

5245 Hellyer Avenue San Jose CA 95138

Common 05/22/2023 6000 519497.20 D. MICHAEL MATTHEWS

5245 Hellyer Avenue San Jose CA 95138

Common 04/01/2023 1550 126257.89 05/30/2023 /s/ David Michael Hugh Matthews