MONOLITHIC POWER SYSTEMS INC (MPWR) Stock Ownership

NASDAQ:MPWR • US6098391054

Current stock price

1114.52 USD
+12.93 (+1.17%)
Last:

MPWR Ownership information

MPWR Ownership Chart.MPWR Ownership Chart: showing Insider, Institutional ownership and shares available to the public.MPWR Ownership.InsiderInstitutional



Shares Outstanding49.12M
Float47.15M
Float Short Interest Percentage4.38%
Owners (insider)3.6%
Owners (institutional)102.39%
Owners (insider) change18.97%
Owners (institutional) change3.54%
MPWR Institutional Ownership HistoryMPWR Institutional Ownership HistoryMPWR Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M
MPWR Historical Insider Transactions ChartMPWR Historical Insider Buy and Sell Transactions ChartMPWR Historical Insider Transactions Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 0 200K -200K 400K
DateNameTypeSharesPriceAmount
Mar 20, 2026Sciammas MauriceOpen Market Sale301,095.07$ 32,852.10
Feb 12, 2026Hsing MichaelOpen Market Sale330001,171.83$ 38,670,257.41
Feb 11, 2026Sciammas MauriceOpen Market Sale2001,179.98$ 235,995.00
Feb 11, 2026Hsing MichaelOpen Market Sale330001,188.92$ 39,234,211.79
Feb 10, 2026Hsing MichaelOpen Market Sale340001,142.28$ 38,837,435.26
Feb 9, 2026Lee Victor KOpen Market Sale4001,212.16$ 484,864.00
Feb 6, 2026Xiao DemingOpen Market Sale228751,171.16$ 26,790,369.64
Feb 6, 2026Tseng SariaOpen Market Sale228751,171.16$ 26,790,369.64
Feb 6, 2026Sciammas MauriceOpen Market Sale228751,171.16$ 26,790,369.64
Feb 6, 2026Blegen TheodoreOpen Market Sale217251,171.16$ 25,443,531.38
Feb 6, 2026Hsing MichaelOpen Market Sale549231,171.16$ 64,323,823.90
Feb 3, 2026Zhou JeffGrant1890.00$ 0.00
Feb 3, 2026CHANG KUO WEI HERBERTGrant1890.00$ 0.00
Feb 3, 2026Elmiger Eugen JGrant1890.00$ 0.00
Feb 3, 2026Lee Victor KGrant1890.00$ 0.00
Feb 3, 2026Hsing MichaelGrant1368250.00$ 0.00
Feb 3, 2026Sciammas MauriceGrant571700.00$ 0.00
Feb 3, 2026Tseng SariaGrant571700.00$ 0.00
Feb 3, 2026Martinez CarintiaGrant1890.00$ 0.00
Feb 3, 2026Xiao DemingGrant571700.00$ 0.00
Feb 3, 2026Blegen TheodoreGrant387450.00$ 0.00
Feb 3, 2026Wynne EileenGrant1890.00$ 0.00
Feb 2, 2026Blegen TheodoreOpen Market Sale30001,129.76$ 3,389,266.28
Jan 2, 2026Blegen TheodoreOpen Market Sale3000940.47$ 2,821,399.46
Jan 2, 2026Lee Victor KOpen Market Sale600930.86$ 558,516.00
Dec 24, 2025Lee Victor KOpen Market Sale1000951.72$ 951,719.21
Dec 24, 2025Tseng SariaOther Disposition20000.00$ 0.00
Dec 9, 2025Hsing MichaelOther Disposition123370.00$ 0.00
Dec 1, 2025Blegen TheodoreOpen Market Sale3000908.21$ 2,724,623.44
Nov 26, 2025Tseng SariaOpen Market Sale20000926.47$ 18,529,315.61
Nov 25, 2025CHANG KUO WEI HERBERTOpen Market Sale100896.97$ 89,697.00
Nov 25, 2025Tseng SariaOpen Market Sale20000904.18$ 18,083,638.33
Nov 24, 2025Sciammas MauriceOpen Market Sale3976895.23$ 3,559,434.48
Nov 21, 2025CHANG KUO WEI HERBERTOpen Market Sale100873.97$ 87,397.00
Nov 19, 2025Sciammas MauriceOpen Market Sale7034870.21$ 6,121,059.06
Nov 19, 2025Sciammas MauriceOpen Market Sale27966881.66$ 24,656,386.86
Nov 12, 2025Hsing MichaelOpen Market Sale37000965.52$ 35,724,379.66
Nov 11, 2025Hsing MichaelOpen Market Sale40000958.39$ 38,335,721.29
Nov 5, 2025Sciammas MauriceOpen Market Sale200986.81$ 197,362.00
Nov 3, 2025Blegen TheodoreOpen Market Sale30001,024.43$ 3,073,277.54
Oct 30, 2025Blegen TheodoreOption Excercise482981,096.63$ 52,965,035.74
Oct 30, 2025Tseng SariaOption Excercise545431,096.63$ 59,813,490.09
Oct 30, 2025Sciammas MauriceOption Excercise545431,096.63$ 59,813,490.09
Oct 30, 2025Xiao DemingOption Excercise545431,096.63$ 59,813,490.09
Oct 30, 2025Hsing MichaelOption Excercise1219181,096.63$ 133,698,936.34
Oct 25, 2025Hsing MichaelGrant3029200.00$ 0.00
Oct 25, 2025Xiao DemingGrant1355200.00$ 0.00
Oct 25, 2025Sciammas MauriceGrant1355200.00$ 0.00
Oct 25, 2025Tseng SariaGrant1355200.00$ 0.00
Oct 25, 2025Blegen TheodoreGrant876900.00$ 0.00
Oct 24, 2025Tseng SariaOpen Market Sale13001,087.62$ 1,413,906.00
Oct 15, 2025Tseng SariaOpen Market Sale168401,017.77$ 17,139,295.31
Oct 1, 2025Blegen TheodoreOpen Market Sale3000913.22$ 2,739,647.60
Sep 18, 2025Tseng SariaOpen Market Sale14510914.45$ 13,268,669.50
Sep 18, 2025Martinez CarintiaOpen Market Sale1400900.00$ 1,260,000.00
Sep 2, 2025Blegen TheodoreOpen Market Sale3000814.34$ 2,443,032.12
Aug 29, 2025Elmiger Eugen JOpen Market Sale4000846.71$ 3,386,841.00
Aug 27, 2025Zhou JeffOpen Market Sale193870.00$ 167,910.00
Aug 19, 2025Sciammas MauriceOther Disposition39980.00$ 0.00
Aug 15, 2025Hsing MichaelOpen Market Sale20231829.10$ 16,773,550.18
Aug 13, 2025Zhou JeffOpen Market Sale400850.00$ 340,000.00
Aug 12, 2025Zhou JeffOpen Market Sale200830.00$ 166,000.00
Aug 11, 2025Xiao DemingOther Aquisition18900.00$ 0.00
Aug 6, 2025Sciammas MauriceOther Aquisition96720.00$ 0.00
Aug 1, 2025Blegen TheodoreOpen Market Sale3000750.00$ 2,250,000.00
Aug 1, 2025Xiao DemingOpen Market Sale39999780.00$ 31,199,220.00
Jul 1, 2025Blegen TheodoreOpen Market Sale6000750.00$ 4,500,000.00
May 28, 2025Sciammas MauriceOther Disposition29980.00$ 0.00
May 13, 2025CHANG KUO WEI HERBERTOpen Market Sale50738.00$ 36,900.00
May 12, 2025Sciammas MauriceOpen Market Sale12000701.00$ 8,412,000.00
May 12, 2025CHANG KUO WEI HERBERTOpen Market Sale100698.00$ 69,800.00
May 8, 2025CHANG KUO WEI HERBERTOpen Market Sale100650.00$ 65,000.00