0001969223-23-000332.txt : 20230829 0001969223-23-000332.hdr.sgml : 20230829 20230829095030 ACCESSION NUMBER: 0001969223-23-000332 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230829 DATE AS OF CHANGE: 20230829 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MONOLITHIC POWER SYSTEMS INC CENTRAL INDEX KEY: 0001280452 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 770466789 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 231218819 BUSINESS ADDRESS: STREET 1: 5808 LAKE WASHINGTON BLVD. NE CITY: KIRKLAND STATE: WA ZIP: 98033 BUSINESS PHONE: 425-296-9956 MAIL ADDRESS: STREET 1: 5808 LAKE WASHINGTON BLVD. NE CITY: KIRKLAND STATE: WA ZIP: 98033 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: CHANG KUO WEI HERBERT CENTRAL INDEX KEY: 0001192171 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O MARVELL SEMICONDUCTOR, INC. STREET 2: 5488 MARVELL LANE CITY: SANTA CLARA STATE: CA ZIP: 95054 144 1 primary_doc.xml 144 0001192171 XXXXXXXX LIVE 0001280452 MONOLITHIC POWER SYSTEMS INC 000-51026 5808 LAKE WASHINGTON BLVD. NE KIRKLAND WA 98033 425-296-9956 KUO WEI CHANG Director Common UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

500 250000 47798000 08/29/2023 NASDAQ Common 02/12/2020 RSU issuer N 500 08/29/2023 N/A Y 08/29/2023 /s/ UBS Financial Services Inc, as attorney-in-fact for KUO WEI CHANG