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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
2023-01-03 Tseng Saria VP & General Counsel Sale −5,528 $344.96 $1.9M 248,904
2023-01-03 Hsing Michael CEO Sale −14,888 $344.96 $5.1M 980,784
2023-01-03 BLEGEN THEODORE CFO Sale −1,884 $344.96 $650K 121,803
2023-01-03 Xiao Deming Pres. of MPS Asia Operations Sale −5,528 $344.96 $1.9M 264,900
2023-01-03 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale −5,528 $344.96 $1.9M 192,856
2022-12-15 Sciammas Maurice Sr. V.P.of Sales and Marketing Gift +6,204 13,502
2022-12-15 Sciammas Maurice Sr. V.P.of Sales and Marketing Gift −3,102 19,458
2022-12-15 Sciammas Maurice Sr. V.P.of Sales and Marketing Gift −3,102 19,458
2022-12-12 Moyer James C Director Sale −3,510 $384.21 $1.3M 79,428
2022-12-12 Moyer James C Director Sale −5,196 $385.00 $2.0M 74,232
2022-12-12 Moyer James C Director Sale −18,538 $386.19 $7.2M 55,694
2022-12-12 Moyer James C Director Sale −4,951 $387.07 $1.9M 50,743
2022-12-12 Moyer James C Director Sale −2,720 $388.38 $1.1M 48,023
2022-12-12 Moyer James C Director Sale −4,747 $389.31 $1.8M 43,276
2022-12-12 Moyer James C Director Sale −338 $390.43 $132K 42,938
2022-11-22 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale −5,200 $369.27 $1.9M 198,384
2022-11-15 Xiao Deming Pres. of MPS Asia Operations Sale −2,377 $408.68 $971K 270,428
2022-11-15 Sciammas Maurice Sr. V.P.of Sales and Marketing Sale −279 $405.51 $113K 203,584
2022-11-15 Tseng Saria VP & General Counsel Sale −279 $404.46 $113K 254,432
2022-11-15 Hsing Michael CEO Sale −1,074 $405.51 $436K 995,672

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