Insider Trading History of Chang Kuo Wei Herbert

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Chang Kuo Wei Herbert since 2020. This trader's CIK number is 1192171. At the time of last reporting, Chang Kuo Wei Herbert was the Officer of Monolithic Power Systems Inc. (stock ticker symbol MPWR). Also see all insider trading activities at Monolithic Power Systems Inc.


Yearly summary of insider trading at Monolithic Power Systems Inc (MPWR) by Chang Kuo Wei Herbert

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2025 MPWR 0 $0 450 $348,794 0 $0
2024 MPWR 0 $0 1,100 $839,773 0 $0
2023 MPWR 0 $0 1,000 $510,456 0 $0
2021 MPWR 0 $0 300 $111,000 0 $0
2020 MPWR 0 $0 11,702 $3,002,244 0 $0


Insider trading of Monolithic Power Systems Inc (MPWR) by Chang Kuo Wei Herbert

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2025-11-25 MPWR Sale 100 896.97 89,697
2025-11-21 MPWR Sale 100 873.97 87,397
2025-05-13 MPWR Sale 50 738.00 36,900
2025-05-12 MPWR Sale 100 698.00 69,800
2025-05-08 MPWR Sale 100 650.00 65,000
2024-08-15 MPWR Sale 200 893.44 178,688
2024-05-20 MPWR Sale 200 750.00 150,000
2024-05-15 MPWR Sale 200 735.00 147,000
2024-02-29 MPWR Sale 250 706.34 176,585
2024-02-22 MPWR Sale 250 750.00 187,500
2023-11-14 MPWR Sale 400 523.64 209,456
2023-11-13 MPWR Sale 100 510.00 51,000
2023-08-29 MPWR Sale 500 500.00 250,000
2021-02-26 MPWR Sale 300 370.00 111,000
2020-11-04 MPWR Sale 3,000 326.33 978,999
2020-08-28 MPWR Sale 1,300 268.00 348,400
2020-08-12 MPWR Sale 400 279.50 111,800
2020-08-06 MPWR Sale 600 280.00 168,000
2020-08-07 MPWR Sale 100 283.00 28,300
2020-08-05 MPWR Sale 600 276.00 165,600
2020-08-04 MPWR Sale 200 274.50 54,900
2020-08-03 MPWR Sale 476 271.26 129,120
2020-05-08 MPWR Sale 1,026 208.00 213,408
2020-05-11 MPWR Sale 2,000 212.00 424,000
2020-02-13 MPWR Sale 1,000 192.00 192,000
2020-02-11 MPWR Sale 1,000 187.72 187,717

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Chang Kuo Wei Herbert (Officer of Monolithic Power Systems Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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