0001312593-24-000005.txt : 20240508 0001312593-24-000005.hdr.sgml : 20240508 20240508123147 ACCESSION NUMBER: 0001312593-24-000005 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240508 DATE AS OF CHANGE: 20240508 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MONOLITHIC POWER SYSTEMS INC CENTRAL INDEX KEY: 0001280452 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing IRS NUMBER: 770466789 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-51026 FILM NUMBER: 24925014 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 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Tseng Saria CENTRAL INDEX KEY: 0001312593 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 79 GREAT OAKS BLVD CITY: SAN JOSE STATE: CA ZIP: 95119 144 1 primary_doc.xml 144 0001312593 XXXXXXXX LIVE 0001280452 MONOLITHIC POWER SYSTEMS INC 000-51026 5808 LAKE WASHINGTON BLVD. NE KIRKLAND WA 98033 425-296-9956 Tseng Saria Officer Common Stock Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

2169 1523115.18 48679148 05/08/2024 NASDAQ Common Stock 05/08/2024 Performance Shares Issuer N 2169 05/08/2024 Cash N Saria Tseng

5808 Lake Washington Blvd. NE Kirkland WA 98033

Common Stock 02/08/2024 859 584120.00 05/08/2024 Saria Tseng