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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
2022-09-22 Moyer James C Director Sale −1,748 $384.76 $673K 86,130
2022-09-22 Moyer James C Director Sale −880 $385.87 $340K 85,250
2022-09-22 Moyer James C Director Sale −203 $387.54 $79K 85,047
2022-09-22 Moyer James C Director Sale −155 $388.13 $60K 84,892
2022-09-22 Moyer James C Director Sale −276 $389.72 $108K 84,616
2022-09-22 Moyer James C Director Sale −209 $390.84 $82K 84,407
2022-09-22 Moyer James C Director Sale −557 $391.83 $218K 83,850
2022-09-22 Moyer James C Director Sale −482 $392.83 $189K 83,368
2022-09-22 Moyer James C Director Sale −46 $393.81 $18K 83,322
2022-09-22 Moyer James C Director Sale −15 $396.72 $6K 83,307
2022-09-22 Moyer James C Director Sale −1 $398.13 $398 83,306
2022-09-22 Moyer James C Director Sale −340 $400.10 $136K 82,966
2022-09-22 Moyer James C Director Sale −28 $401.24 $11K 82,938
2022-08-25 Moyer James C Director Gift −96,000 92,738
2022-08-18 Moyer James C Director Gift −76,925 188,738
2022-08-15 Xiao Deming Pres. of MPS Asia Operations Other acquisition +20 $414.43 $8K 279,477
2022-08-15 Hsing Michael CEO Other acquisition +19 $414.43 $8K 1,016,843
2022-08-15 Tseng Saria VP & General Counsel Other acquisition +16 $414.43 $7K 261,383
2022-08-12 BLEGEN THEODORE CFO Sale −1,369 $525.95 $720K 126,826
2022-08-12 Hsing Michael CEO Sale −6,306 $525.95 $3.3M 1,016,824

Page 52 of 59 · 1,177 trades