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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 443m ago
HOUSE PTR42m ago
SEC 13F42m ago
ROBINHOOD CHAIN42m ago
SEC FORM 4/Open-market purchaseVerified data

Lin Yi-Chien bought XAIR

10% Owner · Beyond Air, Inc. · Common Stock

Side
BUY
Value
$43K
Shares
15.4K
Price
$2.8
Executed
Oct 1, 2026
Disclosed
Oct 2, 2026
Disclosure timeline1 days from execution to publication · legal deadline 2 business days
Oct 1 executedOct 2, 2026 disclosed

XAIR · 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
29/ 100 · ROUTINE
Methodology →
  • Transaction type+20 / 20

    Open-market purchase

  • Relative size+5 / 25

    $43K reported value · 11.8% of prior position

  • Filing timing0 / 15

    Disclosed 1 business day after execution (deadline: 2)

  • Historical behavior+4 / 15

    2 prior trades recorded 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 · XAIR

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    25
    LC
    Lin Yi-Chien10% Owner
    XAIRBeyond Air, Inc.
    Open-market purchase
    BUY$5,761
    2,607 sh
    Oct 13, 2026Oct 14, 2026
    traded Oct 13, 2026
    +1dSEC FORM 4

    Evidence

    35
    LC
    Lin Yi-Chien10% Owner
    XAIRBeyond Air, Inc.
    Open-market purchase
    BUY$8,070
    3,000 sh
    Sep 29, 2026Oct 2, 2026
    traded Sep 29, 2026
    +3dSEC FORM 4

    Evidence

    25
    LC
    Lin Yi-Chien10% Owner
    XAIRBeyond Air, Inc.
    Open-market purchase
    BUY$5,420
    2,000 sh
    Sep 30, 2026Oct 2, 2026
    traded Sep 30, 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
    0002144385-26-000005
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Oct 1, 2026
    Published
    Oct 2, 2026
    Ingested by INSIDER
    Nov 5, 02:13 UTC
    Last re-read
    Nov 5, 02:13 UTC

    Extracted facts

    Filer
    Lin Yi-Chien
    Role
    10% Owner
    Transaction
    Open-market purchaseAs filed: “P”
    Asset
    Beyond Air, Inc.
    Ticker
    XAIR
    Shares
    15.4K
    Price per share
    $2.8
    Value
    $43,100
    Execution date (reported)
    Oct 1, 2026
    Owned after transaction
    145.4K shares
    Days from execution to publication
    1

    Calculation

    Value = shares × reported price per share

    • Shares: 15.4K
    • Price: $2.8

    = $43,100

    What this establishes

    Lin Yi-Chien filed this Form 4 reporting a open-market purchase of XAIR on Oct 1, 2026. It became public on Oct 2, 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
    Lin Yi-Chiencik:0002144385
    Issuer
    Beyond Air, Inc.cik:0001641631

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.