0001214659-24-015184.txt : 20240822 0001214659-24-015184.hdr.sgml : 20240822 20240822194819 ACCESSION NUMBER: 0001214659-24-015184 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240822 FILED AS OF DATE: 20240822 DATE AS OF CHANGE: 20240822 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: 241233205 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-66837.xml PRIMARY DOCUMENT X0508 4 2024-08-22 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 2024-08-22 4 G false 8968 0 D 163105 D Common Stock 2024-08-22 4 G false 8968 0 A 39714 I by Spouse Common Stock 2024-08-22 4 S false 10000 950.00 D 29714 I by Spouse Common Stock 3391 I Christopher Chao Xiao Trust 8,968 shares were transferred from the reporting person's direct holdings to his spouse. No funds were exchanged and no sale of shares occurred in the transfer. 8,968 shares were received by the spouse from the reporting person. No funds were exchanged and no sale of shares occurred in the transfer. The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $950.00 to $950.11. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao 2024-08-22