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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
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −300 $678.50 $204K 140,499
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −300 $679.52 $204K 140,199
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −1,476 $680.82 $1.0M 138,723
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −769 $681.19 $524K 137,954
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −3,296 $682.12 $2.2M 134,658
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −1,714 $683.50 $1.2M 132,944
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −691 $684.88 $473K 132,253
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −1,199 $685.32 $822K 131,054
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −100 $686.05 $69K 130,954
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −10 $687.38 $7K 130,944
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −100 $689.85 $69K 130,844
2024-04-08 Sciammas Maurice EVP of Sales and Marketing Sale 10b5-1 −100 $690.15 $69K 130,744
2024-04-01 Hsing Michael CEO Sale 10b5-1 −200 $670.56 $134K 907,032
2024-04-01 Hsing Michael CEO Sale 10b5-1 −206 $671.81 $138K 906,826
2024-04-01 Hsing Michael CEO Sale 10b5-1 −800 $672.45 $538K 906,026
2024-04-01 Hsing Michael CEO Sale 10b5-1 −1,114 $673.48 $750K 904,912
2024-04-01 Hsing Michael CEO Sale 10b5-1 −1,300 $674.57 $877K 903,612
2024-04-01 Hsing Michael CEO Sale 10b5-1 −680 $675.64 $459K 902,932
2024-04-01 Hsing Michael CEO Sale 10b5-1 −291 $676.42 $197K 902,641
2024-04-01 Hsing Michael CEO Sale 10b5-1 −904 $677.40 $612K 901,737

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