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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/Option exerciseVerified data

Mackay Martin reported RLYB

Director · Rallybio Corp · Common Stock

Side
M
Value
$88K
Shares
11.6K
Price
$7.6
Executed
Nov 4, 2026
Disclosed
Nov 5, 2026
Disclosure timeline1 days from execution to publication · legal deadline 2 business days
Nov 4 executedNov 5, 2026 disclosed

RLYB · 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
16/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Option exercise — administrative, little informational value

  • Relative size+8 / 25

$88K reported value · 12.6% 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 · RLYB

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    9
    MM
    Mackay MartinDirector
    RLYBRallybio Corp
    Option exercise
    		M$8,478
    3,562 sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    16
    MM
    Mackay MartinDirector
    RLYBRallybio Corp
    Option exercise
    		M$80K
    18.1K sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    12
    MM
    Mackay MartinDirector
    RLYBRallybio Corp
    Option exercise
    		M$65K
    11.6K sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    9
    MM
    Mackay MartinDirector
    RLYBRallybio Corp
    Option exercise
    		M—
    3,562 sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    12
    MM
    Mackay MartinDirector
    RLYBRallybio Corp
    Option exercise
    		M$65K
    18.1K sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    24
    HR
    Hunt RonaldDirector
    RLYBRallybio Corp
    Option exercise
    		M$64K
    14.3K sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 2026
    		+1dSEC FORM 4

    Evidence

    12
    HR
    Hunt RonaldDirector
    RLYBRallybio Corp
    Option exercise
    		M$51K
    14.3K sh
    		Nov 4, 2026Nov 5, 2026
    traded Nov 4, 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
    0001193125-26-450103
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Nov 4, 2026
    Published
    Nov 5, 2026
    Ingested by INSIDER
    Nov 6, 03:18 UTC
    Last re-read
    Nov 6, 09:18 UTC

    Extracted facts

    Filer
    Mackay Martin
    Role
    Director
    Transaction
    Option exerciseAs filed: “M”
    Asset
    Rallybio Corp
    Ticker
    RLYB
    Shares
    11.6K
    Price per share
    $7.6
    Value
    $88,213
    Execution date (reported)
    Nov 4, 2026
    Owned after transaction
    103.4K shares
    Days from execution to publication
    1

    Calculation

    Value = shares × reported price per share

    • Shares: 11.6K
    • Price: $7.6

    = $88,213

    What this establishes

    Mackay Martin filed this Form 4 reporting a option exercise of RLYB on Nov 4, 2026. It became public on Nov 5, 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
    Mackay Martincik:0001414815
    Issuer
    Rallybio Corpcik:0001739410

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.