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Data sources

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

RH CHAIN…
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
01Overview02Daily Brief03Live04Congress05Corporate Insiders06Government Money07Political Influence08Institutions09Washington Network10Follow the Power11Disclosure Clock12AI Investigator13Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 47m ago
HOUSE PTR7m ago
SEC 13F7m ago
ROBINHOOD CHAIN7m ago
SEC FORM 4/Open-market purchaseVerified data

Portman David J. bought LONA

10% Owner · LeonaBio, Inc. · LeonaBio, Inc. — Warrant

Side
BUY
Value
$17.33B
Shares
5.50M
Price
$3,149.47
Executed
Oct 26, 2026
Disclosed
Oct 28, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Oct 26 executedOct 28, 2026 disclosed

LONA · 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
53/ 100 · NOTABLE
Methodology →
  • Transaction type+20 / 20

    Open-market purchase

  • Relative size+25 / 25

    $17.33B reported value · new 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 · LONA

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    53
    PJ
    Portman David J.10% Owner
    LONALeonaBio, Inc.
    Open-market purchase
    		BUY$9.92B
    3.15M sh
    		Oct 26, 2026Oct 28, 2026
    traded Oct 26, 2026
    		+2dSEC FORM 4

    Evidence

    9
    RA
    Romano Kelly ADirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    28.0K sh
    		Jun 23, 2026Jun 24, 2026
    traded Jun 23, 2026
    		+1dSEC FORM 4

    Evidence

    9
    SB
    Silverman Peter B.Director
    LONALeonaBio, Inc.
    Grant or award
    		A—
    2,333 sh
    		Jun 23, 2026Jun 24, 2026
    traded Jun 23, 2026
    		+1dSEC FORM 4

    Evidence

    9
    CF
    Callori FredDirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    2,333 sh
    		Jun 23, 2026Jun 24, 2026
    traded Jun 23, 2026
    		+1dSEC FORM 4

    Evidence

    9
    KB
    Kosacz BarbaraDirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    28.0K sh
    		Jun 23, 2026Jun 24, 2026
    traded Jun 23, 2026
    		+1dSEC FORM 4

    Evidence

    9
    SB
    Silverman Peter B.Director
    LONALeonaBio, Inc.
    Grant or award
    		A—
    56.0K sh
    		May 5, 2026May 7, 2026
    traded May 5, 2026
    		+2dSEC FORM 4

    Evidence

    9
    CF
    Callori FredDirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    56.0K sh
    		May 5, 2026May 7, 2026
    traded May 5, 2026
    		+2dSEC FORM 4

    Evidence

    9
    LJ
    Litton Mark JamesDirector, PRESIDENT and CEO
    LONALeonaBio, Inc.
    Grant or award
    		A—
    750.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    5
    RR
    Renninger RobertCHIEF FINANCIAL OFFICER
    LONALeonaBio, Inc.
    Grant or award
    		A—
    300.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    CK
    Church KevinCHIEF SCIENTIFIC OFFICER
    LONALeonaBio, Inc.
    Grant or award
    		A—
    300.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    KB
    Kosacz BarbaraDirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    28.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    RA
    Romano Kelly ADirector
    LONALeonaBio, Inc.
    Grant or award
    		A—
    28.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    PA
    Panzara Michael A.Director
    LONALeonaBio, Inc.
    Grant or award
    		A—
    28.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    WM
    Worthington MarkGENERAL COUNSEL and CCO
    LONALeonaBio, Inc.
    Grant or award
    		A—
    300.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    9
    SJ
    San Martin JavierCHIEF MEDICAL OFFICER
    LONALeonaBio, Inc.
    Grant or award
    		A—
    350.0K sh
    		Apr 9, 2026Apr 13, 2026
    traded Apr 9, 2026
    		+4dSEC FORM 4

    Evidence

    31
    RR
    Renninger RobertCHIEF FINANCIAL OFFICER
    LONALeonaBio, Inc.
    Open-market sale
    		SELL$4,865
    906 sh
    		Mar 4, 2026Mar 5, 2026
    traded Mar 4, 2026
    		+1dSEC FORM 4

    Evidence

    13
    RR
    Renninger RobertCHIEF FINANCIAL OFFICER
    LONALeonaBio, Inc.
    Option exercise
    		M—
    3,900 sh
    		Mar 3, 2026Mar 5, 2026
    traded Mar 3, 2026
    		+2dSEC FORM 4

    Evidence

    5
    RR
    Renninger RobertCHIEF FINANCIAL OFFICER
    LONALeonaBio, Inc.
    Option exercise
    		M—
    3,900 sh
    		Mar 3, 2026Mar 5, 2026
    traded Mar 3, 2026
    		+2dSEC FORM 4

    Evidence

    19
    RR
    Renninger RobertChief Financial Officer
    ATHALeonaBio, Inc.
    Option exercise
    		M—
    1,236 sh
    		Dec 31, 2025Jan 5, 2026
    traded Dec 31, 2025
    		+5dSEC FORM 4

    Evidence

    28
    RR
    Renninger RobertChief Financial Officer
    ATHALeonaBio, Inc.
    Grant or award
    		A$2,310
    1,000 sh
    		Nov 18, 2025Jan 5, 2026
    traded Nov 18, 2025
    		+48dSEC 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
    0002126186-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Oct 26, 2026
    Published
    Oct 28, 2026
    Ingested by INSIDER
    Nov 5, 02:09 UTC
    Last re-read
    Nov 5, 02:09 UTC

    Extracted facts

    Filer
    Portman David J.
    Role
    10% Owner
    Transaction
    Open-market purchaseAs filed: “P”
    Asset
    LeonaBio, Inc. — Warrant
    Ticker
    LONA
    Shares
    5.50M
    Price per share
    $3,149.47
    Value
    $17,329,650,027
    Execution date (reported)
    Oct 26, 2026
    Owned after transaction
    0 shares
    Days from execution to publication
    2

    Calculation

    Value = shares × reported price per share

    • Shares: 5.50M
    • Price: $3,149.47

    = $17,329,650,027

    What this establishes

    Portman David J. filed this Form 4 reporting a open-market purchase of LONA on Oct 26, 2026. It became public on Oct 28, 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
    10% Owner
    Portman David J.cik:0002126186
    Issuer
    LeonaBio, Inc.cik:0001620463

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    • Other material event8-KSep 22, 2026
    • Other material event8-KAug 26, 2026
    • Quarterly report (10-Q)10-QAug 14, 2026
    • Results of operations (earnings)8-KAug 14, 2026
    • Quarterly report (10-Q)10-QMay 7, 2026
    • Results of operations (earnings)8-KMay 7, 2026
    • Annual report (10-K)10-KMar 31, 2026
    • Results of operations (earnings)8-KMar 26, 2026
    • Officer or director change · Other material event8-KMar 19, 2026
    • Officer or director change · Other material event8-KJan 9, 2026
    • Entry into a material agreement · Other material event8-KDec 18, 2025
    • Quarterly report (10-Q)10-QNov 6, 2025
    • Results of operations (earnings)8-KNov 6, 2025
    • Other material event8-KOct 3, 2025