0001280452-15-000089.txt : 20150512 0001280452-15-000089.hdr.sgml : 20150512 20150512151235 ACCESSION NUMBER: 0001280452-15-000089 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20150508 FILED AS OF DATE: 20150512 DATE AS OF CHANGE: 20150512 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: CA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 79 GREAT OAKS BLVD CITY: SAN JOSE STATE: CA ZIP: 95119 BUSINESS PHONE: (408) 826-0600 MAIL ADDRESS: STREET 1: 79 GREAT OAKS BLVD CITY: SAN JOSE STATE: CA ZIP: 95119 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hsing Michael CENTRAL INDEX KEY: 0001308676 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 15854137 MAIL ADDRESS: STREET 1: 79 GREAT OAKS BLVD CITY: SAN JOSE STATE: CA ZIP: 95119 4 1 edgardoc.xml PRIMARY DOCUMENT X0306 4 2015-05-08 0 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001308676 Hsing Michael 79 GREAT OAKS BLVD SAN JOSE CA 95119 1 1 0 0 CEO Common Stock 2015-05-08 4 S 0 4326.0 51.79 D 1072997 D Common Stock 2015-05-08 4 S 0 204.0 51.79 D 1072793 D Common Stock 29000 I Hsing Fam Foundation Common Stock 133040 I by M Hsing 04 Trust Shares sold to pay tax obligations resulting from the vesting of restricted stock units. By: Saria Tseng For: Michael Hsing 2015-05-12