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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 460m ago
HOUSE PTR60m ago
SEC 13F59m ago
ROBINHOOD CHAIN59m ago
SEC FORM 4/GiftVerified data

Chang Stephen Chunping reported AOSL

Director, Chief Executive Officer · ALPHA & OMEGA SEMICONDUCTOR Ltd · Common Share

Side
G
Value
—
Shares
100.9K
Price
—
Executed
Aug 24, 2026
Disclosed
Sep 11, 2026
Disclosure timeline18 days from execution to publication · legal deadline 2 business days
Aug 24 executedSep 11, 2026 disclosed

AOSL · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
18/ 100 · ROUTINE
Methodology →
  • Transaction type+3 / 20

    Gift

  • Relative size+1 / 25

    No reported dollar value · new position

  • Filing timing+10 / 15

    Disclosed 14 business days after execution (deadline: 2)

  • Historical behavior+4 / 15

    3 prior trades recorded in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · AOSL

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    22
    CF
    Chang Mike FDirector, 10% Owner
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Gift
    		G—
    100.9K sh
    		Aug 24, 2026Sep 11, 2026
    traded Aug 24, 2026
    		+18dSEC FORM 4

    Evidence

    21
    LY
    Liang YifanCFO and Corp Secretary
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Open-market sale · 10b5-1 plan
    		SELL$302K
    8,625 sh
    		Apr 17, 2026Apr 20, 2026
    traded Apr 17, 2026
    		+3dSEC FORM 4

    Evidence

    15
    CC
    Chang Stephen ChunpingDirector, Chief Executive Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Open-market sale · 10b5-1 plan
    		SELL$49K
    1,492 sh
    		Apr 17, 2026Apr 20, 2026
    traded Apr 17, 2026
    		+3dSEC FORM 4

    Evidence

    18
    CC
    Chang Stephen ChunpingDirector, Chief Executive Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Open-market sale · 10b5-1 plan
    		SELL$118K
    3,481 sh
    		Apr 17, 2026Apr 20, 2026
    traded Apr 17, 2026
    		+3dSEC FORM 4

    Evidence

    21
    CC
    Chang Stephen ChunpingDirector, Chief Executive Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Open-market sale · 10b5-1 plan
    		SELL$346K
    9,911 sh
    		Apr 17, 2026Apr 20, 2026
    traded Apr 17, 2026
    		+3dSEC FORM 4

    Evidence

    18
    XB
    Xue BingEVP-WW Sales & Bus Development
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Open-market sale · 10b5-1 plan
    		SELL$57K
    1,832 sh
    		Apr 16, 2026Apr 20, 2026
    traded Apr 16, 2026
    		+4dSEC FORM 4

    Evidence

    12
    LW
    Li WenjunChief Operating Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Tax withholding
    		F$70K
    3,272 sh
    		Mar 16, 2026Mar 18, 2026
    traded Mar 16, 2026
    		+2dSEC FORM 4

    Evidence

    9
    LW
    Li WenjunChief Operating Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Tax withholding
    		F$49K
    2,267 sh
    		Mar 16, 2026Mar 18, 2026
    traded Mar 16, 2026
    		+2dSEC FORM 4

    Evidence

    13
    LW
    Li WenjunChief Operating Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Grant or award
    		A—
    10.0K sh
    		Mar 16, 2026Mar 18, 2026
    traded Mar 16, 2026
    		+2dSEC FORM 4

    Evidence

    13
    LW
    Li WenjunChief Operating Officer
    AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
    Grant or award
    		A—
    10.0K sh
    		Mar 16, 2026Mar 18, 2026
    traded Mar 16, 2026
    		+2dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0001628280-26-061540
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Aug 24, 2026
    Published
    Sep 11, 2026
    Ingested by INSIDER
    Nov 5, 02:17 UTC
    Last re-read
    Nov 5, 02:17 UTC

    Extracted facts

    Filer
    Chang Stephen Chunping
    Role
    Director, Chief Executive Officer
    Transaction
    GiftAs filed: “G”
    Asset
    ALPHA & OMEGA SEMICONDUCTOR Ltd
    Ticker
    AOSL
    Shares
    100.9K
    Price per share
    $0
    Execution date (reported)
    Aug 24, 2026
    Owned after transaction
    100.9K shares
    Days from execution to publication
    18

    What this establishes

    Chang Stephen Chunping filed this Form 4 reporting a gift of AOSL on Aug 24, 2026. It became public on Sep 11, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    Director, Chief Executive Officer
    Chang Stephen Chunpingcik:0001722000
    Issuer
    ALPHA & OMEGA SEMICONDUCTOR Ltdcik:0001387467

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.