Mr. Herbert Chang - 03 Feb 2026 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role
Director
Signature
/s/ Saria Tseng, attorney-in-fact for Mr. Herbert Chang
Issuer symbol
MPWR
Transactions as of
03 Feb 2026
Net transactions value
$0
Form type
4
Filing time
05 Feb 2026, 20:01:11 UTC
Previous filing
25 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CHANG KUO WEI HERBERT Director 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH /s/ Saria Tseng, attorney-in-fact for Mr. Herbert Chang 03 Feb 2026 0001192171

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MPWR Common Stock Award $0 +189 +44% $0.000000 615 03 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On February 3, 2026, the Board of Directors approved the annual restricted stock unit grant to each independent director. The RSU grant will vest one year after the grant date, subject to continued service with the company.