0001437749-19-006415.txt : 20190402 0001437749-19-006415.hdr.sgml : 20190402 20190402171514 ACCESSION NUMBER: 0001437749-19-006415 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190401 FILED AS OF DATE: 20190402 DATE AS OF CHANGE: 20190402 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: 19726248 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: 4040 LAKE WASHINGTON BLVD. NE STREET 2: SUITE 201 CITY: KIRKLAND STATE: WA ZIP: 98033 BUSINESS PHONE: 425-296-9956 MAIL ADDRESS: STREET 1: 4040 LAKE WASHINGTON BLVD. NE STREET 2: SUITE 201 CITY: KIRKLAND STATE: WA ZIP: 98033 4 1 rdgdoc.xml FORM 4 X0306 4 2019-04-01 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001312593 Tseng Saria 4040 LAKE WASHINGTON BLVD. NE, SUITE 201 KIRKLAND WA 98033 1 VP & General Counsel Common Stock 2019-04-01 4 S 0 4305 138.59790 D 324308 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 2019-04-02