0001214659-21-009034.txt : 20210826 0001214659-21-009034.hdr.sgml : 20210826 20210826180113 ACCESSION NUMBER: 0001214659-21-009034 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210826 FILED AS OF DATE: 20210826 DATE AS OF CHANGE: 20210826 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Xiao Deming CENTRAL INDEX KEY: 0001308647 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 211213546 MAIL ADDRESS: STREET 1: 79 GREAT OAKS BLVD CITY: SAN JOSE STATE: CA ZIP: 95119 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-53685.xml PRIMARY DOCUMENT X0306 4 2021-08-26 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001308647 Xiao Deming 5808 LAKE WASHINGTON BLVD NE KIRKLAND WA 98033 false true false false Pres. of MPS Asia Operations Common Stock 2021-08-26 4 S false 6495 489 D 292493 D Common Stock 1101 I by Spouse /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao 2021-08-26