0001214659-24-014224.txt : 20240812 0001214659-24-014224.hdr.sgml : 20240812 20240812144111 ACCESSION NUMBER: 0001214659-24-014224 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240808 FILED AS OF DATE: 20240812 DATE AS OF CHANGE: 20240812 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Xiao Deming CENTRAL INDEX KEY: 0001308647 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 241196262 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] ORGANIZATION NAME: 04 Manufacturing 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-66761.xml PRIMARY DOCUMENT X0508 4 2024-08-08 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001308647 Xiao Deming 5808 LAKE WASHINGTON BLVD NE KIRKLAND WA 98033 false true false false EVP, Global Operations 0 Common Stock 2024-08-08 4 S false 859 778.39 D 202354 D Common Stock 3391 I Christopher Chao Xiao Trust Common Stock 455 I by Spouse The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao 2024-08-12