Monolithic Power Systems, Inc.

NasdaqGS:MPWR Stock Report

Market Cap: US$28.6b

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 Nov 24SellUS$561,620Theodore BlegenIndividual734US$765.15
08 Nov 24SellUS$662,611Maurice SciammasIndividual866US$765.14
08 Nov 24SellUS$662,611Saria TsengIndividual866US$765.14
08 Nov 24SellUS$662,611Deming XiaoIndividual866US$765.14
08 Nov 24SellUS$2,151,602Michael HsingIndividual2,812US$765.15
01 Nov 24SellUS$1,932,405Theodore BlegenIndividual2,500US$779.79
07 Oct 24SellUS$10,225,485Maurice SciammasIndividual11,000US$935.00
01 Oct 24SellUS$2,270,900Theodore BlegenIndividual2,500US$925.12
03 Sep 24SellUS$2,260,506Theodore BlegenIndividual2,500US$919.73
27 Aug 24SellUS$8,796,050Deming XiaoIndividual9,259US$950.00
22 Aug 24SellUS$9,500,000Deming XiaoIndividual10,000US$950.00
15 Aug 24SellUS$178,688Kuo Wei ChangIndividual200US$898.00
09 Aug 24SellUS$3,526,277Michael HsingIndividual4,263US$840.24
08 Aug 24SellUS$2,171,708Michael HsingIndividual2,790US$778.39
08 Aug 24SellUS$566,668Theodore BlegenIndividual728US$778.39
08 Aug 24SellUS$668,637Maurice SciammasIndividual859US$778.39
08 Aug 24SellUS$668,637Saria TsengIndividual859US$778.39
08 Aug 24SellUS$668,637Deming XiaoIndividual859US$778.39
01 Aug 24SellUS$2,131,264Theodore BlegenIndividual2,500US$859.12
22 Jul 24SellUS$2,145,476Theodore BlegenIndividual2,580US$831.58
22 Jul 24SellUS$7,994,810Michael HsingIndividual9,614US$831.58
22 Jul 24SellUS$2,665,214Maurice SciammasIndividual3,205US$831.58
22 Jul 24SellUS$2,665,214Saria TsengIndividual3,205US$831.58
22 Jul 24SellUS$2,665,214Deming XiaoIndividual3,205US$831.58
08 Jul 24SellUS$9,281,285Maurice SciammasIndividual10,999US$848.48
02 Jul 24SellUS$31,510,849Saria TsengIndividual38,951US$824.65
01 Jul 24SellUS$2,149,816Michael HsingIndividual2,672US$807.88
01 Jul 24SellUS$2,010,485Theodore BlegenIndividual2,500US$807.88
28 Jun 24SellUS$820,460Victor LeeIndividual1,000US$820.46
03 Jun 24SellUS$5,848,606Michael HsingIndividual8,000US$746.35
03 Jun 24SellUS$1,829,437Theodore BlegenIndividual2,500US$746.35
22 May 24SellUS$1,000,220Deming XiaoIndividual1,300US$769.40
20 May 24SellUS$150,000Jeff ZhouIndividual200US$750.00
20 May 24SellUS$150,000Kuo Wei ChangIndividual200US$750.00
15 May 24SellUS$147,000Kuo Wei ChangIndividual200US$740.00
08 May 24SellUS$1,948,560Michael HsingIndividual2,824US$690.00
08 May 24SellUS$508,515Theodore BlegenIndividual737US$689.98
08 May 24SellUS$599,610Maurice SciammasIndividual869US$690.00
08 May 24SellUS$599,627Deming XiaoIndividual869US$690.02
08 May 24SellUS$599,627Saria TsengIndividual869US$690.02
01 May 24SellUS$5,294,840Michael HsingIndividual8,000US$670.09
01 May 24SellUS$1,658,215Theodore BlegenIndividual2,500US$670.08
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

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
State or Government42,1000.0863%
Individual Insiders1,708,6463.5%
Institutions47,048,12596.4%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 64.39% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
12.1%
BlackRock, Inc.
5,907,349US$3.5b0%0.05%
11.8%
The Vanguard Group, Inc.
5,750,228US$3.4b0.97%0.05%
6.87%
FMR LLC
3,353,413US$2.0b10%0.11%
4.27%
State Street Global Advisors, Inc.
2,085,146US$1.2b2.09%0.04%
3.3%
Franklin Resources, Inc.
1,609,134US$942.7m-8.05%0.32%
2.74%
Geode Capital Management, LLC
1,334,164US$781.6m11.2%0.05%
2.69%
T. Rowe Price Group, Inc.
1,313,906US$769.8m-20.8%0.07%
2.26%
Wellington Management Group LLP
1,104,225US$646.9m0.02%0.1%
2.06%
Michael Hsing
1,004,130US$588.3m-0.28%no data
2.01%
Brown Advisory Incorporated
980,091US$574.2m-0.68%0.67%
1.47%
Invesco Ltd.
717,583US$420.4m-8.32%0.11%
1.39%
Massachusetts Financial Services Company
678,093US$397.3m-28%0.08%
1.34%
Norges Bank Investment Management
651,897US$381.9m0%0.03%
0.96%
JP Morgan Asset Management
470,362US$275.6m-21.7%0.03%
0.92%
Van Eck Associates Corporation
447,823US$262.4m26.3%0.28%
0.91%
Vaughan Nelson Investment Management, L.P.
446,215US$261.4m-4.23%2.21%
0.91%
AllianceBernstein L.P.
444,965US$260.7m-10.7%0.08%
0.91%
UBS Asset Management AG
444,473US$260.4m25.7%0.02%
0.85%
Northern Trust Global Investments
414,879US$243.1m-4.01%0.04%
0.8%
Rafferty Asset Management, LLC
391,069US$229.1m-1.07%0.78%
0.8%
Legal & General Investment Management Limited
389,702US$228.3m31.2%0.04%
0.79%
Bank of America Corporation, Asset Management Arm
383,844US$224.9m-5.9%0.06%
0.77%
Managed Account Advisors LLC
373,789US$219.0m-3.26%0.04%
0.75%
Invesco Capital Management LLC
363,487US$213.0m-3.94%0.08%
0.71%
JPMorgan Chase & Co, Brokerage and Securities Investments
347,178US$203.4m-4.96%0.09%