0001214659-21-007600.txt : 20210716 0001214659-21-007600.hdr.sgml : 20210716 20210716170353 ACCESSION NUMBER: 0001214659-21-007600 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210714 FILED AS OF DATE: 20210716 DATE AS OF CHANGE: 20210716 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Zhou Jeff CENTRAL INDEX KEY: 0001480772 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 211096104 MAIL ADDRESS: STREET 1: 6409 GUADALUPE MINES ROAD CITY: SAN JOSE STATE: CA ZIP: 95120 ISSUER: 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 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 4 1 marketforms-53413.xml PRIMARY DOCUMENT X0306 4 2021-07-14 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001480772 Zhou Jeff 5808 LAKE WASHINGTON BLVD NE KIRKLAND WA 98033 true false false false Common Stock 2021-07-14 4 S false 500 390.32 D 8509 D Common Stock 2021-07-14 4 S false 500 395 D 8009 D Shares sold pursuant to the reporting person's 10b5-1 plan. /s/ Saria Tseng, attorney-in-fact for Mr. Jeff Zhou 2021-07-15