0001214659-21-012210.txt : 20211123 0001214659-21-012210.hdr.sgml : 20211123 20211123183359 ACCESSION NUMBER: 0001214659-21-012210 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211122 FILED AS OF DATE: 20211123 DATE AS OF CHANGE: 20211123 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: 211440471 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-54370.xml PRIMARY DOCUMENT X0306 4 2021-11-22 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 2021-11-22 4 S false 427 580.00 D 279203 D Common Stock 1101 I by Spouse /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao 2021-11-23