Mr. Deming Xiao - 11 Aug 2025 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)

Role
EVP, Global Operations
Signature
/s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao
Issuer symbol
MPWR
Transactions as of
11 Aug 2025
Net transactions value
$0
Form type
4
Filing time
12 Aug 2025, 17:45:36 UTC
Previous filing
04 Aug 2025
Next filing
28 Oct 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Xiao Deming EVP, Global Operations 5808 LAKE WASHINGTON BLVD NE, KIRKLAND /s/ Saria Tseng, attorney-in-fact for Mr. Deming Xiao 11 Aug 2025 0001308647

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MPWR Common Stock Gift $0 +945 +28% $0.000000 4,336 11 Aug 2025 Christopher Chao Xiao Trust F1
transaction MPWR Common Stock Gift $0 -945 -0.78% $0.000000 120,660 11 Aug 2025 Direct F2
holding MPWR Common Stock 20,455 11 Aug 2025 by Spouse
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 945 shares were received by Christopher Chao Xiao Trust from the reporting person. No funds were exchanged and no sale of shares occurred in the transfer.
F2 945 shares were transferred from the reporting person's direct holdings to Christopher Chao Xiao Trust. No funds were exchanged and no sale of shares occurred in the transfer.