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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 45m ago
HOUSE PTR4m ago
SEC 13F4m ago
ROBINHOOD CHAIN4m ago
SEC FORM 4/Tax withholdingVerified data

Fenimore Christopher R. reported REGN

EVP Finance CFO · REGENERON PHARMACEUTICALS, INC. · Common Stock

Side
F
Value
$3.74M
Shares
4,599
Price
$813.47
Executed
Aug 18, 2026
Disclosed
Aug 20, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Aug 18 executedAug 20, 2026 disclosed

REGN · 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
26/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Tax withholding — administrative, little informational value

  • Relative size+18 / 25

$3.7M reported value · 29.9% of prior position

  • Filing timing0 / 15

    Disclosed 2 business days 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 · REGN

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    50
    ZY
    Zoghbi Huda YDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$486K
    500 sh
    		Nov 3, 2026Nov 5, 2026
    traded Nov 3, 2026
    		+2dSEC FORM 4

    Evidence

    9
    ZY
    Zoghbi Huda YDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M—
    7,439 sh
    		Nov 3, 2026Nov 5, 2026
    traded Nov 3, 2026
    		+2dSEC FORM 4

    Evidence

    30
    ZY
    Zoghbi Huda YDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M$2.83M
    7,439 sh
    		Nov 3, 2026Nov 5, 2026
    traded Nov 3, 2026
    		+2dSEC FORM 4

    Evidence

    5
    MJ
    Murphy Andrew JCo-Chief Scientific Officer
    REGNREGENERON PHARMACEUTICALS, INC.
    Gift
    		G—
    1,054 sh
    		Nov 3, 2026Nov 5, 2026
    traded Nov 3, 2026
    		+2dSEC FORM 4

    Evidence

    57
    ZY
    Zoghbi Huda YDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$6.73M
    6,939 sh
    		Nov 3, 2026Nov 5, 2026
    traded Nov 3, 2026
    		+2dSEC FORM 4

    Evidence

    49
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$2.58M
    2,670 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    42
    LJ
    Larosa Joseph JEVP General Counsel and Secret
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$509K
    527 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    49
    LJ
    Larosa Joseph JEVP General Counsel and Secret
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$3.80M
    3,939 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    39
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$194K
    200 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    12
    FR
    Fenimore Christopher R.EVP Finance CFO
    REGNREGENERON PHARMACEUTICALS, INC.
    Gift
    		G—
    15 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    49
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$4.18M
    4,338 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    22
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M$2.83M
    7,439 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    49
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$2.43M
    2,522 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    9
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M—
    7,830 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    26
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M$2.95M
    7,830 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    9
    LJ
    Larosa Joseph JEVP General Counsel and Secret
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M—
    12.3K sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    26
    LJ
    Larosa Joseph JEVP General Counsel and Secret
    REGNREGENERON PHARMACEUTICALS, INC.
    Tax withholding
    		F$8.26M
    8,686 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    45
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$1.18M
    1,224 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    26
    FR
    Fenimore Christopher R.EVP Finance CFO
    REGNREGENERON PHARMACEUTICALS, INC.
    Option exercise
    		M$2.29M
    6,000 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    49
    SL
    Sing George LDirector
    REGNREGENERON PHARMACEUTICALS, INC.
    Open-market sale
    		SELL$1.47M
    1,522 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 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
    0001697422-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Aug 18, 2026
    Published
    Aug 20, 2026
    Ingested by INSIDER
    Nov 5, 02:21 UTC
    Last re-read
    Nov 5, 02:21 UTC

    Extracted facts

    Filer
    Fenimore Christopher R.
    Role
    EVP Finance CFO
    Transaction
    Tax withholdingAs filed: “F”
    Asset
    REGENERON PHARMACEUTICALS, INC.
    Ticker
    REGN
    Shares
    4,599
    Price per share
    $813.47
    Value
    $3,741,149
    Execution date (reported)
    Aug 18, 2026
    Owned after transaction
    20.0K shares
    Days from execution to publication
    2

    Calculation

    Value = shares × reported price per share

    • Shares: 4,599
    • Price: $813.47

    = $3,741,149

    What this establishes

    Fenimore Christopher R. filed this Form 4 reporting a tax withholding of REGN on Aug 18, 2026. It became public on Aug 20, 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
    EVP Finance CFO
    Fenimore Christopher R.cik:0001697422
    Issuer
    REGENERON PHARMACEUTICALS, INC.cik:0000872589

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.