0001280452-13-000212.txt : 20130715 0001280452-13-000212.hdr.sgml : 20130715 20130715204757 ACCESSION NUMBER: 0001280452-13-000212 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20130712 FILED AS OF DATE: 20130715 DATE AS OF CHANGE: 20130715 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: Tseng Saria CENTRAL INDEX KEY: 0001312593 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 13969237 MAIL ADDRESS: STREET 1: 6409 GUADALUPE MINES ROAD CITY: SAN JOSE STATE: CA ZIP: 95120 4 1 edgardoc.xml PRIMARY DOCUMENT X0306 4 2013-07-12 0 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001312593 Tseng Saria 79 GREAT OAKS BLVD SAN JOSE CA 95119 0 1 0 0 VP & General Counsel Common Stock 2013-07-12 4 M 0 563.0 7.64 A 75563 D Common Stock 2013-07-12 4 M 0 884.0 15.28 A 76447 D Common Stock 2013-07-12 4 M 0 3750.0 12.42 A 80197 D Common Stock 2013-07-12 4 M 0 329.0 14.93 A 80526 D Common Stock 2013-07-12 4 M 0 941.0 12.42 A 81467 D Common Stock 2013-07-12 4 S 0 13467.0 25.2237 D 68000 D Common Stock 2013-07-12 4 M 0 7000.0 14.93 A 75000 D Common Stock 2013-07-15 4 S 0 490.0 25.8 D 74510 D Common Stock 2000 I S.Tseng Charity Fund Non-Qualified Stock Option (right to buy) 7.64 2013-07-12 4 M 0 563.0 0.0 D 2012-12-28 2014-11-17 Common Stock 563 0 D Non-Qualified Stock Option (right to buy) 12.42 2013-07-12 4 M 0 941.0 0.0 D 2012-12-28 2015-10-22 Common Stock 941 0 D Non-Qualified Stock Option (right to buy) 13.01 2013-07-12 4 M 0 3750.0 0.0 D 2010-10-22 2015-10-22 Common Stock 3750 0 D Non-Qualified Stock Option (right to buy) 14.93 2013-07-12 4 M 0 329.0 0.0 D 2012-12-28 2015-01-31 Common Stock 329 0 D Non-Qualified Stock Option (right to buy) 15.28 2013-07-12 4 M 0 884.0 0.0 D 2012-12-28 2014-07-27 Common Stock 884 0 D Non-Qualified Stock Option (right to buy) 15.64 2013-07-12 4 M 0 7000.0 0.0 D 2010-01-31 2015-01-31 Common Stock 7000 0 D In accordance with the reporting person's 10b5-1 trading plan. On December 11, 2012, the Company's Board declared a special cash dividend of $1.00 per common share, which was paid on December 28, 2012 to all shareholders of record as of the close of business on December 21, 2012. The Board approved a modification whereby each outstanding option as of December 28, 2012 was increased by a ratio of 1.0471 with a corresponding reduction in the exercise price. 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 $25.16 to $25.2237. 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. Saria Tseng 2013-07-15