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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
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −80 $724.42 $58K 82,433
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −100 $725.51 $73K 82,333
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −253 $726.61 $184K 82,080
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −497 $727.40 $362K 81,583
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −651 $728.48 $474K 80,932
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −149 $729.19 $109K 80,783
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −60 $732.01 $44K 80,723
2024-03-01 BLEGEN THEODORE CFO Sale 10b5-1 −50 $733.37 $37K 80,723
2024-02-29 CHANG KUO WEI HERBERT Director Sale −250 $706.34 $177K 1,141
2024-02-22 CHANG KUO WEI HERBERT Director Sale −250 $750.00 $188K 1,391
2024-02-13 Moyer James C Director Gift −4,000 33,731
2024-02-13 Moyer James C Director Gift +4,000 4,000
2024-02-12 Zhou Jeff Director Sale −200 $750.57 $150K 6,269
2024-02-12 Moyer James C Director Gift −4,000 37,731
2024-02-12 Moyer James C Director Gift +4,000 4,000
2024-02-08 Xiao Deming Pres. of MPS Asia Operations Sale −859 $680.00 $584K 208,580
2024-02-08 Tseng Saria Executive VP & General Counsel Sale −859 $680.00 $584K 204,339
2024-02-08 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale −859 $680.00 $584K 141,718
2024-02-08 Hsing Michael CEO Sale −2,790 $680.00 $1.9M 915,193
2024-02-08 BLEGEN THEODORE CFO Sale −728 $680.00 $495K 83,173

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