0001437749-18-014772.txt : 20180807 0001437749-18-014772.hdr.sgml : 20180807 20180807171212 ACCESSION NUMBER: 0001437749-18-014772 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180803 FILED AS OF DATE: 20180807 DATE AS OF CHANGE: 20180807 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Tseng Saria CENTRAL INDEX KEY: 0001312593 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 18999038 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: 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 4 1 rdgdoc.xml FORM 4 X0306 4 2018-08-03 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001312593 Tseng Saria 79 GREAT OAKS BLVD SAN JOSE CA 95119 1 VP & General Counsel Common Stock 2018-08-03 4 S 0 3019 135.4545 D 291851 D Common Stock 2018-08-06 4 S 0 1710 135.9932 D 290141 D The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plans. /s/ Saria Tseng 2018-08-07