MONOLITHIC PWR SYS INC

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MPWR·609839105·US·Common Stock·Technology - Semiconductors-13D/G

MPWR (MONOLITHIC PWR SYS INC) is held by 314 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($7.7B), FMR LLC ($7.2B), VANGUARD CAPITAL MANAGEMENT LLC ($4.3B). Net institutional sentiment: Mixed. In Q2 2026, 3 members of Congress and 158 funds bought MPWR.

314

Holders

(27 Elite)

$58.5B

Total Value

50% (319)

Consensus

158 buying - 161 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)43

Insider (Form 4)76

Activist (13D/13G)84

Congressional (STOCK Act)78

Holder Quality

75

★★★★★

Elite

51

★★★★

Strong

83

★★★

Solid

41

★★

Below

52

★

Weak

Held by 314 funds

27 elite

Who's Trading

Source dates: Price Aug 28, 2026 · Insiders Aug 26, 2026 · Activists Jul 15, 2026 · Congress Aug 5, 2026

InsiderDIDEAN ROBERT W IIOther 5 shAug 24, 2026

InsiderCHCHANG KUO WEI HERBERTSell $64KAug 24, 2026

InsiderDIDEAN ROBERT W IISell $42KAug 24, 2026

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Top Holders

Top Holders (314)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	5.6M(-8.0%)	$7.7B	0.1%	+93.53%	0
FMR LLC	Increased	5.2M(+17.6%)	$7.2B	0.3%	+59.43%	45
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	3.1M(+1.4%)	$4.3B	0.1%	+16.47%	32
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Decreased	2.5M(-0.5%)	$3.5B	0.2%	+16.93%	0
Invesco Ltd.	Decreased	2.3M(-6.8%)	$3.2B	0.3%	+78.10%	0
STATE STREET CORP	Increased	2.3M(+4.3%)	$3.2B	0.1%	+87.08%	33
GEODE CAPITAL MANAGEMENT, LLC	Decreased	1.2M(-16.5%)	$1.6B	0.1%	+188.11%	0
FRANKLIN RESOURCES INC	Decreased	811,974(-12.6%)	$1.1B	0.2%	+459.02%	0
GOLDMAN SACHS GROUP INC	Increased	780,650(+37.4%)	$1.1B	0.1%	+39.00%	42
MORGAN STANLEY	Increased	727,885(+10.9%)	$1B	0.1%	+46.93%	35
BANK OF AMERICA CORP /DE/	Increased	536,236(+40.3%)	$741.3M	0.0%	+48.71%	42
ROYAL BANK OF CANADA	Increased	487,212(+2.9%)	$673.5M	0.1%	+33.60%	39
FIRST TRUST ADVISORS LP	Decreased	482,781(-18.4%)	$667.4M	0.4%	+56.19%	0
NORTHERN TRUST CORP	Decreased	479,492(-2.0%)	$662.8M	0.1%	+326.44%	0
BARCLAYS PLC	Decreased	474,132(-14.7%)	$655.4M	0.1%	+76.80%	0
Rafferty Asset Management, LLC	Increased	459,278(+44.7%)	$634.9M	1.4%	+50.80%	67
UBS Group AG	Decreased	449,479(-16.8%)	$621.3M	0.1%	+66.36%	0
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	Decreased	442,176(-22.1%)	$611.2M	0.2%	+296.21%	0
JPMORGAN CHASE & CO	Decreased	434,949(-21.6%)	$571M	0.0%	+60.67%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	388,951(+3.3%)	$537.7M	0.1%	+211.34%	32

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer