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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 459m ago
HOUSE PTR58m ago
SEC 13F58m ago
ROBINHOOD CHAIN58m ago
SEC FORM 4/Open-market saleVerified data

Abbey William sold ARM

Chief Commercial Officer · ARM HOLDINGS PLC /UK · Ordinary Shares

Side
SELL
Value
$1.44M
Shares
4,200
Price
$343.81
Executed
May 28, 2026
Disclosed
Jun 1, 2026
Disclosure timeline4 days from execution to publication · legal deadline 2 business days
May 28 executedJun 1, 2026 disclosed

ARM · 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
45/ 100 · ELEVATED
Methodology →
  • Transaction type+12 / 20

    Open-market sale

  • Relative size+14 / 25

    $1.4M reported value · 13.4% of prior position

  • Filing timing0 / 15

    Disclosed 2 business days after execution (deadline: 2)

  • Historical behavior+4 / 15

    4 prior trades recorded in this security

  • Frequency & clustering+15 / 15

    3 other actors traded the same direction within 14 days

  • 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 · ARM

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    14
    CJ
    Child JasonChief Financial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale · 10b5-1 plan
    		SELL$3.12M
    10.4K sh
    		Sep 21, 2026Sep 23, 2026
    traded Sep 21, 2026
    		+2dSEC FORM 4

    Evidence

    13
    AW
    Abbey WilliamChief Commercial Officer
    ARMARM HOLDINGS PLC /UK
    Grant or award
    		A—
    17.3K sh
    		Sep 14, 2026Sep 16, 2026
    traded Sep 14, 2026
    		+2dSEC FORM 4

    Evidence

    12
    HA
    Haas Rene A.Director, Chief Executive Officer
    ARMARM HOLDINGS PLC /UK
    Grant or award
    		A$6,933
    64 sh
    		Aug 31, 2026Sep 10, 2026
    traded Aug 31, 2026
    		+10dSEC FORM 4

    Evidence

    2
    HA
    Haas Rene A.Director, Chief Executive Officer
    ARMARM HOLDINGS PLC /UK
    Grant or award
    		A—
    425.0K sh
    		Sep 9, 2026Sep 10, 2026
    traded Sep 9, 2026
    		+1dSEC FORM 4

    Evidence

    18
    CJ
    Child JasonChief Financial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale · 10b5-1 plan
    		SELL$2.66M
    10.4K sh
    		Aug 27, 2026Aug 31, 2026
    traded Aug 27, 2026
    		+4dSEC FORM 4

    Evidence

    12
    SJ
    Sine JeffreyDirector
    ARMARM HOLDINGS PLC /UK
    Gift
    		G—
    9,572 sh
    		Aug 7, 2026Aug 11, 2026
    traded Aug 7, 2026
    		+4dSEC FORM 4

    Evidence

    53
    BK
    Bartels Laura KathleenChief Accounting Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$4.44M
    11.3K sh
    		Jun 2, 2026Jun 4, 2026
    traded Jun 2, 2026
    		+2dSEC FORM 4

    Evidence

    42
    AW
    Abbey WilliamChief Commercial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$703K
    2,300 sh
    		May 22, 2026May 26, 2026
    traded May 22, 2026
    		+4dSEC FORM 4

    Evidence

    46
    EC
    Eaton Charlotte ClaireChief People Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$808K
    2,805 sh
    		May 21, 2026May 22, 2026
    traded May 21, 2026
    		+1dSEC FORM 4

    Evidence

    45
    AW
    Abbey WilliamChief Commercial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$1.34M
    4,655 sh
    		May 21, 2026May 22, 2026
    traded May 21, 2026
    		+1dSEC FORM 4

    Evidence

    53
    EC
    Eaton Charlotte ClaireChief People Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$1.46M
    5,000 sh
    		May 21, 2026May 22, 2026
    traded May 21, 2026
    		+1dSEC FORM 4

    Evidence

    53
    AW
    Abbey WilliamChief Commercial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$2.44M
    10.9K sh
    		May 19, 2026May 21, 2026
    traded May 19, 2026
    		+2dSEC FORM 4

    Evidence

    50
    CS
    Collins SpencerChief Legal Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$8.80M
    40.9K sh
    		May 19, 2026May 21, 2026
    traded May 19, 2026
    		+2dSEC FORM 4

    Evidence

    45
    AW
    Abbey WilliamChief Commercial Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$1.30M
    5,069 sh
    		May 20, 2026May 21, 2026
    traded May 20, 2026
    		+1dSEC FORM 4

    Evidence

    50
    EC
    Eaton Charlotte ClaireChief People Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$782K
    3,100 sh
    		May 20, 2026May 21, 2026
    traded May 20, 2026
    		+1dSEC FORM 4

    Evidence

    49
    EC
    Eaton Charlotte ClaireChief People Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$1.13M
    4,000 sh
    		May 21, 2026May 21, 2026
    traded May 21, 2026
    		+0dSEC FORM 4

    Evidence

    34
    CS
    Collins SpencerChief Legal Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$174K
    836 sh
    		May 11, 2026May 13, 2026
    traded May 11, 2026
    		+2dSEC FORM 4

    Evidence

    37
    CS
    Collins SpencerChief Legal Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$386K
    1,849 sh
    		May 11, 2026May 13, 2026
    traded May 11, 2026
    		+2dSEC FORM 4

    Evidence

    48
    CS
    Collins SpencerChief Legal Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$2.26M
    10.7K sh
    		May 11, 2026May 13, 2026
    traded May 11, 2026
    		+2dSEC FORM 4

    Evidence

    48
    CS
    Collins SpencerChief Legal Officer
    ARMARM HOLDINGS PLC /UK
    Open-market sale
    		SELL$2.38M
    11.2K sh
    		May 11, 2026May 13, 2026
    traded May 11, 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
    0001973239-26-000103
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    May 28, 2026
    Published
    Jun 1, 2026
    Ingested by INSIDER
    Nov 5, 03:55 UTC
    Last re-read
    Nov 5, 03:55 UTC

    Extracted facts

    Filer
    Abbey William
    Role
    Chief Commercial Officer
    Transaction
    Open-market saleAs filed: “S”
    Asset
    ARM HOLDINGS PLC /UK
    Ticker
    ARM
    Shares
    4,200
    Price per share
    $343.81
    Value
    $1,444,002
    Execution date (reported)
    May 28, 2026
    Owned after transaction
    27.1K shares
    Days from execution to publication
    4

    Calculation

    Value = shares × reported price per share

    • Shares: 4,200
    • Price: $343.81

    = $1,444,002

    What this establishes

    Abbey William filed this Form 4 reporting a open-market sale of ARM on May 28, 2026. It became public on Jun 1, 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
    Chief Commercial Officer
    Abbey Williamcik:0001945497
    Issuer
    ARM HOLDINGS PLC /UKcik:0001973239

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.