Monolithic Power Systems, Inc.

NasdaqGS:MPWR Stock Report

Market Cap: US$31.8b

Monolithic Power Systems Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:MPWR Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
08 Apr 24SellUS$7,500,104Maurice SciammasIndividual11,000US$690.15
01 Apr 24SellUS$1,693,493Theodore BlegenIndividual2,500US$687.44
01 Apr 24SellUS$5,419,521Michael HsingIndividual8,000US$687.45
01 Mar 24SellUS$1,814,388Theodore BlegenIndividual2,500US$733.37
01 Mar 24SellUS$5,808,620Michael HsingIndividual8,000US$733.37
29 Feb 24SellUS$176,585Kuo Wei ChangIndividual250US$706.34
22 Feb 24SellUS$187,500Kuo Wei ChangIndividual250US$750.00
12 Feb 24SellUS$150,114Jeff ZhouIndividual200US$750.57
08 Feb 24SellUS$495,040Theodore BlegenIndividual728US$680.00
08 Feb 24SellUS$1,897,200Michael HsingIndividual2,790US$680.00
08 Feb 24SellUS$584,120Maurice SciammasIndividual859US$680.00
08 Feb 24SellUS$584,120Saria TsengIndividual859US$680.00
08 Feb 24SellUS$584,120Deming XiaoIndividual859US$680.00
05 Feb 24SellUS$2,430,031Michael HsingIndividual3,791US$641.00
05 Feb 24SellUS$555,747Theodore BlegenIndividual867US$641.00
05 Feb 24SellUS$629,462Maurice SciammasIndividual982US$641.00
05 Feb 24SellUS$629,462Deming XiaoIndividual982US$641.00
05 Feb 24SellUS$629,462Saria TsengIndividual982US$641.00
01 Feb 24SellUS$1,508,138Theodore BlegenIndividual2,500US$609.39
01 Feb 24SellUS$4,816,043Michael HsingIndividual8,000US$609.39
12 Jan 24SellUS$6,403,239Maurice SciammasIndividual11,000US$589.29
10 Jan 24SellUS$6,786,331Deming XiaoIndividual11,515US$596.19
09 Jan 24SellUS$834,000Saria TsengIndividual1,390US$600.00
05 Jan 24SellUS$4,578,223Michael HsingIndividual8,000US$577.01
04 Jan 24SellUS$34,203,494Michael HsingIndividual58,654US$583.14
04 Jan 24SellUS$16,102,245Theodore BlegenIndividual27,613US$583.14
04 Jan 24SellUS$16,129,069Maurice SciammasIndividual27,659US$583.14
04 Jan 24SellUS$14,761,606Deming XiaoIndividual25,314US$583.14
04 Jan 24SellUS$14,761,606Saria TsengIndividual25,314US$583.14
02 Jan 24SellUS$1,539,272Theodore BlegenIndividual2,500US$620.50
18 Dec 23SellUS$1,578,398Theodore BlegenIndividual2,500US$634.67
13 Dec 23SellUS$11,166,000Saria TsengIndividual18,610US$600.00
16 Nov 23SellUS$2,047,973James MoyerIndividual3,800US$540.18
14 Nov 23SellUS$209,456Kuo Wei ChangIndividual400US$523.64
13 Nov 23SellUS$51,000Kuo Wei ChangIndividual100US$510.00
08 Nov 23SellUS$421,245Deming XiaoIndividual859US$490.39
08 Nov 23SellUS$421,245Saria TsengIndividual859US$490.39
08 Nov 23SellUS$421,245Maurice SciammasIndividual859US$490.39
08 Nov 23SellUS$1,368,188Michael HsingIndividual2,790US$490.39
08 Nov 23SellUS$349,158Theodore BlegenIndividual712US$490.39
06 Nov 23SellUS$484,047Maurice SciammasIndividual982US$492.92
06 Nov 23SellUS$1,868,167Michael HsingIndividual3,790US$492.92
06 Nov 23SellUS$484,047Saria TsengIndividual982US$492.92
06 Nov 23SellUS$417,503Theodore BlegenIndividual847US$492.92
06 Nov 23SellUS$484,047Deming XiaoIndividual982US$492.92
02 Oct 23SellUS$1,972,982Deming XiaoIndividual4,305US$458.30
02 Oct 23SellUS$1,972,982Saria TsengIndividual4,305US$458.30
02 Oct 23SellUS$1,972,982Maurice SciammasIndividual4,305US$458.30
02 Oct 23SellUS$5,022,968Michael HsingIndividual10,960US$458.30
02 Oct 23SellUS$414,762Theodore BlegenIndividual905US$458.30
29 Aug 23SellUS$250,000Kuo Wei ChangIndividual500US$500.00
08 Aug 23SellUS$463,447Deming XiaoIndividual874US$530.26
08 Aug 23SellUS$463,456Saria TsengIndividual874US$530.27
08 Aug 23SellUS$1,503,817Michael HsingIndividual2,836US$530.26
08 Aug 23SellUS$463,447Maurice SciammasIndividual874US$530.26
08 Aug 23SellUS$383,923Theodore BlegenIndividual724US$530.28
04 Aug 23SellUS$520,202Maurice SciammasIndividual988US$526.52
04 Aug 23SellUS$520,212Deming XiaoIndividual988US$526.53
04 Aug 23SellUS$520,202Saria TsengIndividual988US$526.52
04 Aug 23SellUS$2,008,750Michael HsingIndividual3,815US$526.54
04 Aug 23SellUS$448,595Theodore BlegenIndividual852US$526.52
21 Jul 23SellUS$5,258,426Maurice SciammasIndividual9,843US$534.23
21 Jul 23SellUS$15,409,864Michael HsingIndividual28,845US$534.23
21 Jul 23SellUS$5,136,621Deming XiaoIndividual9,615US$534.23
21 Jul 23SellUS$5,136,621Saria TsengIndividual9,615US$534.23
21 Jul 23SellUS$4,046,792Theodore BlegenIndividual7,575US$534.23
03 Jul 23SellUS$5,894,178Michael HsingIndividual10,960US$537.79
03 Jul 23SellUS$2,315,186Maurice SciammasIndividual4,305US$537.79
03 Jul 23SellUS$2,315,186Saria TsengIndividual4,305US$537.79
03 Jul 23SellUS$2,315,186Deming XiaoIndividual4,305US$537.79
03 Jul 23SellUS$486,700Theodore BlegenIndividual905US$537.79
09 May 23SellUS$351,207Saria TsengIndividual857US$409.81
09 May 23SellUS$1,141,237Michael HsingIndividual2,785US$409.78
09 May 23SellUS$351,190Deming XiaoIndividual857US$409.79
09 May 23SellUS$351,181Maurice SciammasIndividual857US$409.78
09 May 23SellUS$291,354Theodore BlegenIndividual711US$409.78
04 May 23SellUS$455,464Deming XiaoIndividual991US$459.60
04 May 23SellUS$455,464Saria TsengIndividual991US$459.60
04 May 23SellUS$1,757,970Michael HsingIndividual3,825US$459.60
04 May 23SellUS$455,464Maurice SciammasIndividual991US$459.60
04 May 23SellUS$392,498Theodore BlegenIndividual854US$459.60

Insider Trading Volume

Insider Buying: MPWR insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of MPWR?
Owner TypeNumber of SharesOwnership Percentage
Private Companies7,8360.0161%
State or Government43,2230.0888%
General Public964,3211.98%
Individual Insiders1,900,2153.91%
Institutions45,745,40594%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 2.6%.

Top Shareholders

Top 25 shareholders own 64.74% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
11.2%
The Vanguard Group, Inc.
5,464,066US$3.6b1.69%0.06%
10.8%
BlackRock, Inc.
5,236,530US$3.4b-0.82%0.06%
4.97%
FMR LLC
2,420,611US$1.6b-28.2%0.11%
4.51%
T. Rowe Price Group, Inc.
2,192,561US$1.4b20.8%0.14%
4.01%
State Street Global Advisors, Inc.
1,950,691US$1.3b3.73%0.06%
3.76%
Franklin Resources, Inc.
1,829,777US$1.2b2.42%0.47%
2.25%
Geode Capital Management, LLC
1,096,510US$715.6m3.12%0.06%
2.17%
Massachusetts Financial Services Company
1,056,183US$689.3m0.29%0.15%
2.15%
Michael Hsing
1,045,097US$682.1m-8.51%no data
2.13%
Brown Advisory Incorporated
1,036,783US$676.7m0.81%0.95%
1.93%
Wellington Management Group LLP
938,919US$612.8m10%0.1%
1.73%
JP Morgan Asset Management
842,017US$549.5m0.41%0.07%
1.68%
Invesco Ltd.
818,385US$534.1m37.6%0.15%
1.46%
Artisan Partners Limited Partnership
709,950US$463.4m-9.46%0.39%
1.27%
Capital Research and Management Company
616,180US$402.2m1.2%0.02%
1.18%
Norges Bank Investment Management
574,649US$375.0m35.3%0.03%
0.99%
Vaughan Nelson Investment Management, L.P.
483,812US$315.8m4.93%3.03%
0.93%
Macquarie Investment Management Business Trust
450,504US$294.0m-3.76%0.34%
0.92%
Northern Trust Global Investments
446,107US$291.2m-2.97%0.05%
0.91%
Invesco Capital Management LLC
444,190US$289.9m16.3%0.15%
0.87%
Managed Account Advisors LLC
422,577US$275.8m-7.16%0.06%
0.8%
ClearBridge Investments, LLC
390,036US$254.6m-4.01%0.21%
0.79%
UBS Asset Management AG
385,038US$251.3m36.7%0.04%
0.67%
AllianceBernstein L.P.
327,232US$213.6m-9.01%0.07%
0.67%
BNY Mellon Asset Management
326,141US$212.9m-2.27%0.04%
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