0001214659-22-008670.txt : 20220706 0001214659-22-008670.hdr.sgml : 20220706 20220706171127 ACCESSION NUMBER: 0001214659-22-008670 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220701 FILED AS OF DATE: 20220706 DATE AS OF CHANGE: 20220706 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: 221069660 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: 5808 LAKE WASHINGTON BLVD. NE CITY: KIRKLAND STATE: WA ZIP: 98033 BUSINESS PHONE: 425-296-9956 MAIL ADDRESS: STREET 1: 5808 LAKE WASHINGTON BLVD. NE CITY: KIRKLAND STATE: WA ZIP: 98033 4 1 marketforms-56610.xml PRIMARY DOCUMENT X0306 4 2022-07-01 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001312593 Tseng Saria 5808 LAKE WASHINGTON BLVD NE KIRKLAND WA 98033 false true false false VP & General Counsel Common Stock 2022-07-01 4 S false 4515 361.58 D 263984 D The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive 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 $361.58 to $361.59. 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. /s/ Saria Tseng 2022-07-06