0001214659-21-011920.txt : 20211116
0001214659-21-011920.hdr.sgml : 20211116
20211116193349
ACCESSION NUMBER: 0001214659-21-011920
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20211112
FILED AS OF DATE: 20211116
DATE AS OF CHANGE: 20211116
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: 211417913
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-54051.xml
PRIMARY DOCUMENT
X0306
4
2021-11-12
0001280452
MONOLITHIC POWER SYSTEMS INC
MPWR
0001308676
Hsing Michael
5808 LAKE WASHINGTON BLVD NE
KIRKLAND
WA
98033
true
true
false
false
CEO
Common Stock
2021-11-12
4
S
false
6273
553.418
D
961285
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.
The amount of securities beneficially owned has been updated to reflect the correct amount of shares and corrects an inadvertent error on the Form 4 filed by the reporting person on November 10, 2021.
/s/ Saria Tseng, attorney-in-fact for Mr. Michael R. Hsing
2021-11-16