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Data sources

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

RH CHAIN…
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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

Heyburn William A. reported SRTA

Director, Co-CEO and CFO · Strata Critical Medical, Inc. · Class A common stock, $0.0001 par value per share

Side
F
Value
$518K
Shares
98.4K
Price
$5.27
Executed
Sep 24, 2026
Disclosed
Sep 25, 2026
Disclosure timeline1 days from execution to publication · legal deadline 2 business days
Sep 24 executedSep 25, 2026 disclosed

SRTA · 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
19/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Tax withholding — administrative, little informational value

  • Relative size+11 / 25

$518K reported value · 5.9% 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 · SRTA

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    24
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    9,787 sh
    		Jul 30, 2026Oct 30, 2026
    traded Jul 30, 2026
    		+92dSEC FORM 4

    Evidence

    24
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    2,658 sh
    		Jul 30, 2026Oct 30, 2026
    traded Jul 30, 2026
    		+92dSEC FORM 4

    Evidence

    13
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    57.2K sh
    		Oct 28, 2026Oct 30, 2026
    traded Oct 28, 2026
    		+2dSEC FORM 4

    Evidence

    13
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    57.2K sh
    		Oct 28, 2026Oct 30, 2026
    traded Oct 28, 2026
    		+2dSEC FORM 4

    Evidence

    9
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    1,416 sh
    		Oct 28, 2026Oct 30, 2026
    traded Oct 28, 2026
    		+2dSEC FORM 4

    Evidence

    16
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$214K
    45.0K sh
    		Oct 28, 2026Oct 30, 2026
    traded Oct 28, 2026
    		+2dSEC FORM 4

    Evidence

    13
    HA
    Heyburn William A.Director, Co-CEO and CFO
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    177.9K sh
    		Sep 24, 2026Sep 25, 2026
    traded Sep 24, 2026
    		+1dSEC FORM 4

    Evidence

    13
    TM
    Tomkiel Melissa M.Director, Co-CEO and General Counsel
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    177.9K sh
    		Sep 24, 2026Sep 25, 2026
    traded Sep 24, 2026
    		+1dSEC FORM 4

    Evidence

    15
    TM
    Tomkiel Melissa M.Director, Co-CEO and General Counsel
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$479K
    90.8K sh
    		Sep 24, 2026Sep 25, 2026
    traded Sep 24, 2026
    		+1dSEC FORM 4

    Evidence

    9
    KV
    Krstic Velibor10% Owner
    SRTAStrata Critical Medical, Inc.
    Expiration of long derivative
    		H—
    1.58M sh
    		May 7, 2026May 8, 2026
    traded May 7, 2026
    		+1dSEC FORM 4

    Evidence

    17
    TM
    Tomkiel Melissa M.Director, Co-CEO and General Counsel
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    630.3K sh
    		Apr 23, 2026Apr 27, 2026
    traded Apr 23, 2026
    		+4dSEC FORM 4

    Evidence

    26
    TM
    Tomkiel Melissa M.Director, Co-CEO and General Counsel
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$1.58M
    321.8K sh
    		Apr 24, 2026Apr 27, 2026
    traded Apr 24, 2026
    		+3dSEC FORM 4

    Evidence

    17
    HA
    Heyburn William A.Director, Co-CEO and CFO
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    545.6K sh
    		Apr 23, 2026Apr 27, 2026
    traded Apr 23, 2026
    		+4dSEC FORM 4

    Evidence

    26
    HA
    Heyburn William A.Director, Co-CEO and CFO
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$1.48M
    301.7K sh
    		Apr 24, 2026Apr 27, 2026
    traded Apr 24, 2026
    		+3dSEC FORM 4

    Evidence

    12
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$68K
    13.9K sh
    		Apr 24, 2026Apr 27, 2026
    traded Apr 24, 2026
    		+3dSEC FORM 4

    Evidence

    13
    WM
    Wunsch Scott MCEO, Logistics
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    57.2K sh
    		Apr 23, 2026Apr 27, 2026
    traded Apr 23, 2026
    		+4dSEC FORM 4

    Evidence

    20
    CA
    Cohen AmirChief Accounting Officer
    SRTAStrata Critical Medical, Inc.
    Tax withholding
    		F$202K
    41.0K sh
    		Apr 24, 2026Apr 27, 2026
    traded Apr 24, 2026
    		+3dSEC FORM 4

    Evidence

    17
    CA
    Cohen AmirChief Accounting Officer
    SRTAStrata Critical Medical, Inc.
    Grant or award
    		A—
    83.5K sh
    		Apr 23, 2026Apr 27, 2026
    traded Apr 23, 2026
    		+4dSEC 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
    0001628280-26-063576
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Sep 24, 2026
    Published
    Sep 25, 2026
    Ingested by INSIDER
    Nov 5, 02:15 UTC
    Last re-read
    Nov 5, 02:15 UTC

    Extracted facts

    Filer
    Heyburn William A.
    Role
    Director, Co-CEO and CFO
    Transaction
    Tax withholdingAs filed: “F”
    Asset
    Strata Critical Medical, Inc.
    Ticker
    SRTA
    Shares
    98.4K
    Price per share
    $5.27
    Value
    $518,336
    Execution date (reported)
    Sep 24, 2026
    Owned after transaction
    1.76M shares
    Days from execution to publication
    1

    Calculation

    Value = shares × reported price per share

    • Shares: 98.4K
    • Price: $5.27

    = $518,336

    What this establishes

    Heyburn William A. filed this Form 4 reporting a tax withholding of SRTA on Sep 24, 2026. It became public on Sep 25, 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, Co-CEO and CFO
    Heyburn William A.cik:0001859732
    Issuer
    Strata Critical Medical, Inc.cik:0001779128

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.