InsiderTrades

Zhou Jeff

SEC CIK 1480772 · EDGAR

Buying vs selling by month open-market trades, last 60 months, MPWR
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
MPWRMonolithic Power SystemsDir 3,800 — $6.30M 222021-07-062026-05-26

Most active insiders at MPWR, 12 months

#InsiderTitleBoughtSold
1 Hsing MichaelCEO, Dir —$314.44M
2 Tseng SariaEVP, GC —$150.90M
3 Sciammas MauriceEVP, WW Sales, Marketing —$101.39M
4 Xiao DemingEVP, Gbl Ops —$76.43M
5 BLEGEN THEODOREEVP, CFO —$40.19M
6 Elmiger Eugen JDir —$19.02M
7 Zhou JeffDir —$3.25M
8 Lee Victor KDir —$2.00M
9 Wynne EileenDir —$530.2K
10 CHANG KUO WEI HERBERTDir —$312.2K

Transactions 22

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-05-27 19:28 2026-05-26 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $1,680.00 -486 3,800 -11% -$816.5K
M 2026-05-06 19:59 2026-05-05+ MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $1,607.85 -1,514 4,286 -26% -$2.43M
2026-02-05 2026-02-03 MPWR Monolithic Power Systems Zhou Jeff Dir A - Grant $0.00 +189 5,800 +3% $0
2025-08-28 2025-08-27 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $870.00 -193 5,611 -3% -$167.9K
2025-08-15 2025-08-13 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $850.00 -400 5,804 -6% -$340.0K
2025-08-13 2025-08-12 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $830.00 -200 6,204 -3% -$166.0K
2025-02-06 2025-02-04 MPWR Monolithic Power Systems Zhou Jeff Dir A - Grant $0.00 +335 6,404 +6% $0
2024-05-22 2024-05-20 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $750.00 -200 6,069 -3% -$150.0K
2024-02-13 2024-02-12 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $750.57 -200 6,269 -3% -$150.1K
2024-02-08 2024-02-06 MPWR Monolithic Power Systems Zhou Jeff Dir A - Grant $0.00 +348 6,469 +6% $0
2023-02-08 2023-02-07 MPWR Monolithic Power Systems Zhou Jeff Dir A - Grant $0.00 +470 6,121 +8% $0
2022-08-12 2022-08-11 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $540.00 -200 5,651 -3% -$108.0K
2022-08-03 2022-08-03 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $520.00 -200 5,851 -3% -$104.0K
2022-02-09 2022-02-08 MPWR Monolithic Power Systems Zhou Jeff Dir A - Grant $0.00 +542 6,051 +10% $0
2021-08-26 2021-08-24 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $490.00 -300 5,509 -5% -$147.0K
2021-08-23 2021-08-20 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $477.00 -300 5,809 -5% -$143.1K
2021-08-05 2021-08-04 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $465.22 -400 6,109 -6% -$186.1K
2021-07-26 2021-07-23 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $410.00 -500 6,509 -7% -$205.0K
M 2021-07-21 2021-07-21 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $402.51 -1,000 7,509 -12% -$402.5K
M 2021-07-16 2021-07-14 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $392.66 -1,000 8,009 -11% -$392.7K
2021-07-08 2021-07-07 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $387.27 -500 9,009 -5% -$193.6K
2021-07-06 2021-07-06 MPWR Monolithic Power Systems Zhou Jeff Dir S - Sale $380.00 -500 9,509 -5% -$190.0K

Purchase Sale Sale after option exercise All abbreviations