0001280452-12-000246.txt : 20120829 0001280452-12-000246.hdr.sgml : 20120829 20120829144027 ACCESSION NUMBER: 0001280452-12-000246 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120827 FILED AS OF DATE: 20120829 DATE AS OF CHANGE: 20120829 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: 121062776 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 edgardoc.xml PRIMARY DOCUMENT X0306 4 2012-08-27 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 2012-08-27 4 S 0 6665.0 23.002 D 671370.0 D Common Stock 498566.0 I By Jointly w/Spouse Common Stock 133040.0 I By S. Hsing 04 Trust Common Stock 133040.0 I by M Hsing 04 Trust In accordance with the reporting person's 10b5-1 trading plan. 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 $23.00 to $23.04. 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. By: Saria Tseng For: Michael Hsing 2012-08-29