0001214659-23-013135.txt : 20231004
0001214659-23-013135.hdr.sgml : 20231004
20231004162233
ACCESSION NUMBER: 0001214659-23-013135
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20231002
FILED AS OF DATE: 20231004
DATE AS OF CHANGE: 20231004
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: 231308236
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-62756.xml
PRIMARY DOCUMENT
X0508
4
2023-10-02
0001280452
MONOLITHIC POWER SYSTEMS INC
MPWR
0001308676
Hsing Michael
5808 LAKE WASHINGTON BLVD NE
KIRKLAND
WA
98033
true
true
false
false
CEO
0
Common Stock
2023-10-02
4
S
false
10960
458.30
D
1003006
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.
Ending balance includes 15 shares acquired on August 15, 2023 through the Company's qualified ESPP program.
/s/ Saria Tseng, attorney-in-fact for Mr. Michael R. Hsing
2023-10-04