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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 42h ago
HOUSE PTR2h ago
SEC 13F2h ago
ROBINHOOD CHAIN2h ago
SEC FORM 4/Tax withholdingVerified data

Giroux Richard reported MGTX

CFO & COO · MeiraGTx Holdings plc · Ordinary Shares

Side
F
Value
$223K
Shares
28.8K
Price
$7.73
Executed
Jan 7, 2026
Disclosed
Jan 8, 2026
Disclosure timeline1 days from execution to publication · legal deadline 2 business days
Jan 7 executedJan 8, 2026 disclosed

MGTX · 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
12/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Tax withholding — administrative, little informational value

  • Relative size+4 / 25

$223K reported value · 3.5% of prior position

  • Filing timing0 / 15

    Disclosed 1 business day after execution (deadline: 2)

  • Historical behavior+8 / 15

    First recorded trade by this actor 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 · MGTX

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    16
    GR
    Giroux RichardCFO & COO
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$557K
    56.0K sh
    		Oct 20, 2026Oct 20, 2026
    traded Oct 20, 2026
    		+0dSEC FORM 4

    Evidence

    12
    NS
    Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$294K
    27.7K sh
    		Oct 6, 2026Oct 6, 2026
    traded Oct 6, 2026
    		+0dSEC FORM 4

    Evidence

    7
    NS
    Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$374K
    25.1K sh
    		Jul 7, 2026Jul 7, 2026
    traded Jul 7, 2026
    		+0dSEC FORM 4

    Evidence

    1
    NS
    Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$35K
    2,547 sh
    		Jul 7, 2026Jul 7, 2026
    traded Jul 7, 2026
    		+0dSEC FORM 4

    Evidence

    9
    FA
    Forbes AlexandriaDirector, PRESIDENT & CEO
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    980.0K sh
    		Jun 25, 2026Jun 29, 2026
    traded Jun 25, 2026
    		+4dSEC FORM 4

    Evidence

    5
    GR
    Giroux RichardCFO & COO
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    980.0K sh
    		Jun 25, 2026Jun 29, 2026
    traded Jun 25, 2026
    		+4dSEC FORM 4

    Evidence

    9
    WJ
    Wollin Robert JGENERAL COUNSEL AND SECRETARY
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    100.0K sh
    		Jun 25, 2026Jun 29, 2026
    traded Jun 25, 2026
    		+4dSEC FORM 4

    Evidence

    9
    ZK
    Zeldin Robert KCHIEF MEDICAL OFFICER
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    100.0K sh
    		Jun 25, 2026Jun 29, 2026
    traded Jun 25, 2026
    		+4dSEC FORM 4

    Evidence

    5
    NS
    Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    70.0K sh
    		Jun 25, 2026Jun 29, 2026
    traded Jun 25, 2026
    		+4dSEC FORM 4

    Evidence

    9
    YD
    Yu DebraDirector
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    60.0K sh
    		Jun 11, 2026Jun 15, 2026
    traded Jun 11, 2026
    		+4dSEC FORM 4

    Evidence

    21
    HR
    Harris Keith R.Director
    MGTXMeiraGTx Holdings plc
    Option exercise
    		M—
    75.0K sh
    		Jun 10, 2026Jun 10, 2026
    traded Jun 10, 2026
    		+0dSEC FORM 4

    Evidence

    9
    HR
    Harris Keith R.Director
    MGTXMeiraGTx Holdings plc
    Option exercise
    		M—
    75.0K sh
    		Jun 10, 2026Jun 10, 2026
    traded Jun 10, 2026
    		+0dSEC FORM 4

    Evidence

    9
    FR
    Fleck Penny ReneeCHIEF DEVELOPMENT OFFICER
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    100.0K sh
    		May 13, 2026May 14, 2026
    traded May 13, 2026
    		+1dSEC FORM 4

    Evidence

    9
    FR
    Fleck Penny ReneeCHIEF DEVELOPMENT OFFICER
    MGTXMeiraGTx Holdings plc
    Grant or award
    		A—
    100.0K sh
    		May 13, 2026May 14, 2026
    traded May 13, 2026
    		+1dSEC FORM 4

    Evidence

    20
    GR
    Giroux RichardCFO & COO
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$572K
    56.0K sh
    		Apr 21, 2026Apr 21, 2026
    traded Apr 21, 2026
    		+0dSEC FORM 4

    Evidence

    16
    NS
    Naylor StuartCHIEF DEV. OFFICER
    MGTXMeiraGTx Holdings plc
    Open-market sale · 10b5-1 plan
    		SELL$259K
    27.7K sh
    		Apr 7, 2026Apr 7, 2026
    traded Apr 7, 2026
    		+0dSEC FORM 4

    Evidence

    27
    WJ
    Wollin Robert JGENERAL COUNSEL AND SECRETARY
    MGTXMeiraGTx Holdings plc
    Option exercise
    		M—
    50.0K sh
    		Jan 17, 2026Jan 21, 2026
    traded Jan 17, 2026
    		+4dSEC FORM 4

    Evidence

    30
    WJ
    Wollin Robert JGENERAL COUNSEL AND SECRETARY
    MGTXMeiraGTx Holdings plc
    Tax withholding
    		F$202K
    27.2K sh
    		Jan 17, 2026Jan 21, 2026
    traded Jan 17, 2026
    		+4dSEC FORM 4

    Evidence

    15
    WJ
    Wollin Robert JGENERAL COUNSEL AND SECRETARY
    MGTXMeiraGTx Holdings plc
    Option exercise
    		M—
    50.0K sh
    		Jan 17, 2026Jan 21, 2026
    traded Jan 17, 2026
    		+4dSEC FORM 4

    Evidence

    9
    GR
    Giroux RichardCFO & COO
    MGTXMeiraGTx Holdings plc
    Option exercise
    		M—
    52.5K sh
    		Jan 7, 2026Jan 8, 2026
    traded Jan 7, 2026
    		+1dSEC 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
    0001742734-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Jan 7, 2026
    Published
    Jan 8, 2026
    Ingested by INSIDER
    Nov 5, 04:23 UTC
    Last re-read
    Nov 5, 04:23 UTC

    Extracted facts

    Filer
    Giroux Richard
    Role
    CFO & COO
    Transaction
    Tax withholdingAs filed: “F”
    Asset
    MeiraGTx Holdings plc
    Ticker
    MGTX
    Shares
    28.8K
    Price per share
    $7.73
    Value
    $222,794
    Execution date (reported)
    Jan 7, 2026
    Owned after transaction
    853.2K shares
    Days from execution to publication
    1

    Calculation

    Value = shares × reported price per share

    • Shares: 28.8K
    • Price: $7.73

    = $222,794

    What this establishes

    Giroux Richard filed this Form 4 reporting a tax withholding of MGTX on Jan 7, 2026. It became public on Jan 8, 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
    CFO & COO
    Giroux Richardcik:0001742734
    Issuer
    MeiraGTx Holdings plccik:0001735438

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.