0001214659-23-001830.txt : 20230208 0001214659-23-001830.hdr.sgml : 20230208 20230208185419 ACCESSION NUMBER: 0001214659-23-001830 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230206 FILED AS OF DATE: 20230208 DATE AS OF CHANGE: 20230208 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: 23600531 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-59342.xml PRIMARY DOCUMENT X0306 4 2023-02-06 0001280452 MONOLITHIC POWER SYSTEMS INC MPWR 0001308676 Hsing Michael 5808 LAKE WASHINGTON BLVD NE KIRKLAND WA 98033 true true false false CEO Common Stock 2023-02-06 4 S false 3691 446.88 D 977093 D Common Stock 2023-02-07 4 A false 112839 0.00 A 1089932 D Common Stock 133040 I by M Hsing 04 Trust Common Stock 12825 I ZH Family 2020 Trust The reported sales were to cover taxes upon the vesting of restricted stock units, as required by the Company's equity incentive plan. On February 2, 2021, the reporting person was granted a target of 37,613 shares of restricted stock units, with the right to earn up to 300% of the target shares, subject to satisfaction of pre-determined, performance-based vesting criteria. On February 7, 2023, the Company's Compensation Committee of the Board of Directors determined and approved the achievement of the performance criteria for the restricted stock units, which resulted in 75,226 additional shares being earned by the reporting person. Of the 112,839 restricted stock units that were awarded, 56,420 will vest immediately and 56,419 will vest quarterly in the next two years. /s/ Saria Tseng, attorney-in-fact for Mr. Michael R. Hsing 2023-02-08