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MPWR Director Sells $87k in Company Stock

Low SignificanceNovember 24, 2025 at 11:32:11 AM EST

MONOLITHIC POWER SYSTEMS INC

$MPWR4CIK: 0001280452

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Filing Summary

MPWR Director Sells $87k in Company Stock

Company: MONOLITHIC POWER SYSTEMS INC (MPWR) Form: 4 | Filed: 2025-11-24 Significance: Low

Insider: CHANG KUO WEI HERBERT Title: n/a | Relationship: Director

Transaction: • Type: Sale • Shares: 100 • Price: $873.97 • Value: $87,397 • Owned After: 526

Key Insight: This is a minor transaction, representing a negligible fraction of the company's market capitalization and the insider's total holdings.

Market Context: The sale is too small to be considered a significant signal regarding the insider's outlook on the company.

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This is PUBLIC SEC data for educational purposes. Not investment advice.

Comprehensive Analysis

SEC Filing Analysis: MONOLITHIC POWER SYSTEMS INC (MPWR)

Executive Summary

  • Trading Significance: Low
  • Key Takeaway: A director executed a small, routine sale of common stock valued at approximately $87,000.
  • Market Impact: The transaction is immaterial and not expected to have any impact on the stock.

Company Information

FieldValue
CompanyMONOLITHIC POWER SYSTEMS INC
Ticker SymbolMPWR
CIK0001280452
IndustrySemiconductors & Related Devices

Insider Information

FieldValue
NameCHANG KUO WEI HERBERT
CIK0001192171
Title/Positionn/a
RelationshipDirector

Transaction Details

FieldValue
Form Type4
Transaction Date2025-11-21
Transaction CodeS (Sale)
Security TypeCommon Stock
Shares Involved100
Price Per Share$873.97
Total Value$87,397
Shares Owned After526
Ownership TypeDirect

Financial Impact Assessment

Transaction Materiality

MetricValue
Transaction Value$87,397
% of Market Cap<0.001%
Shares Transacted100
% of Shares Outstanding<0.001%
Post-Transaction Ownership526 shares (<0.001% of outstanding)
Materiality AssessmentLow

Impact Evaluation

  • Market Cap Context: Given Monolithic Power Systems' market capitalization of $44.08 billion, this $87k transaction is financially insignificant.
  • Ownership Concentration: The insider's post-transaction holding of 526 shares is a negligible stake in the company.
  • Transaction Significance: The sale represents a small portion of the insider's prior holdings (approx. 16%) and is immaterial relative to the company's size. It is likely for personal financial management.

Market Impact Analysis

Stock Impact Prediction

  • Direction: Neutral
  • Reasoning: The transaction size is too small to signal any change in insider sentiment or to influence the market.

Volume & Sentiment

  • Expected Volume Impact: None. The transaction is too small to affect trading volume.
  • Sentiment Indicator: Neutral. This filing does not provide any bullish or bearish signals.

Additional Context

Transaction Notes

  • Timing: The transaction was reported promptly.
  • Special Circumstances: No 10b5-1 plan was indicated in the filing.
Topics:#SECFiling#InsiderTrading#MPWR#MonolithicPower#Form4#InsiderSell#StockMarket#Investing

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Important Disclaimer

This content is drawn from public SEC filings and may contain errors. It is for informational purposes only and is not investment, legal, or tax advice.

Nothing here is a recommendation to buy, sell, or hold any security. Do your own due diligence.