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CIK 0001280452 · Large accelerated filer

MONOLITHIC POWER SYSTEMS, INC.

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Ticker
MPWR
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
770466789
Phone
561-839-3999
Business address
1555 PALM BEACH LAKES BLVD., WEST PALM BEACH, FL, 33401
Former names
MONOLITHIC POWER SYSTEMS INC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$40,463,134
in 4 filings, $40.3M under 10b5-1 plans

Net −$40,463,134. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2024-02-01 Hsing Michael CEO Sale 10b5-1 −1,171 $603.48 $707K 924,216
2024-02-01 Hsing Michael CEO Sale 10b5-1 −1,023 $604.59 $618K 923,193
2024-02-01 Hsing Michael CEO Sale 10b5-1 −262 $605.05 $159K 922,931
2024-02-01 Hsing Michael CEO Sale 10b5-1 −477 $606.39 $289K 922,454
2024-02-01 Hsing Michael CEO Sale 10b5-1 −282 $607.01 $171K 922,172
2024-02-01 Hsing Michael CEO Sale 10b5-1 −100 $608.78 $61K 922,072
2024-02-01 Hsing Michael CEO Sale 10b5-1 −300 $609.39 $183K 921,774
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −868 $600.37 $521K 86,400
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −21 $601.99 $13K 86,379
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −920 $603.50 $555K 85,459
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −204 $604.38 $123K 85,255
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −101 $605.06 $61K 85,154
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −100 $606.70 $61K 85,054
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −86 $607.00 $52K 84,968
2024-02-01 BLEGEN THEODORE CFO Sale 10b5-1 −200 $609.39 $122K 84,768
2024-01-12 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale 10b5-1 −1,999 $577.66 $1.2M 152,560
2024-01-12 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale 10b5-1 −1,562 $578.47 $904K 150,998
2024-01-12 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale 10b5-1 −1,430 $579.73 $829K 149,568
2024-01-12 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale 10b5-1 −300 $581.17 $174K 149,268
2024-01-12 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale 10b5-1 −1,300 $582.75 $758K 147,968

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