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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 451m ago
HOUSE PTR50m ago
SEC 13F50m ago
ROBINHOOD CHAIN50m ago
SEC FORM 4/Grant or awardVerified data

Ileri Firat reported BLLN

Director, 10% Owner · BillionToOne, Inc. · Class A Common Stock

Side
A
Value
—
Shares
3,017
Price
—
Executed
Jun 10, 2026
Disclosed
Jun 12, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Jun 10 executedJun 12, 2026 disclosed

BLLN · 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
13/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Grant or award — administrative, little informational value

  • Relative size+5 / 25

No reported dollar value · 8.1% 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 · BLLN

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    8
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$2,603
    23 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    22
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$419K
    3,803 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    8
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$34K
    300 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    15
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$219K
    1,992 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    15
    TR
    ten Bosch John RoderickSVP of Laboratory Operations
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$160K
    1,417 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    15
    TR
    ten Bosch John RoderickSVP of Laboratory Operations
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$160K
    1,417 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    18
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$353K
    3,241 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    18
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$251K
    2,320 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    0
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Option exercise · 10b5-1 plan
    		M$47K
    16.7K sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    14
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$302K
    2,667 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    12
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$23K
    208 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    0
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Option exercise · 10b5-1 plan
    		M$28K
    10.0K sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    19
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$70K
    633 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    26
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$264K
    2,389 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    4
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Option exercise · 10b5-1 plan
    		M$28K
    10.0K sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    4
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Option exercise · 10b5-1 plan
    		M$28K
    10.0K sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    22
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$267K
    2,451 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    11
    TD
    Tsao DavidDirector, Chief Technology Officer
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$98K
    917 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    15
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$159K
    1,482 sh
    		Nov 2, 2026Nov 4, 2026
    traded Nov 2, 2026
    		+2dSEC FORM 4

    Evidence

    20
    AO
    Atay OguzhanDirector, Chairman and CEO
    BLLNBillionToOne, Inc.
    Open-market sale · 10b5-1 plan
    		SELL$46K
    411 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
    0002087908-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Jun 10, 2026
    Published
    Jun 12, 2026
    Ingested by INSIDER
    Nov 5, 03:53 UTC
    Last re-read
    Nov 5, 03:53 UTC

    Extracted facts

    Filer
    Ileri Firat
    Role
    Director, 10% Owner
    Transaction
    Grant or awardAs filed: “A”
    Asset
    BillionToOne, Inc.
    Ticker
    BLLN
    Shares
    3,017
    Price per share
    $0
    Execution date (reported)
    Jun 10, 2026
    Owned after transaction
    40.3K shares
    Days from execution to publication
    2

    What this establishes

    Ileri Firat filed this Form 4 reporting a grant or award of BLLN on Jun 10, 2026. It became public on Jun 12, 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, 10% Owner
    Ileri Firatcik:0002087908
    Issuer
    BillionToOne, Inc.cik:0002070849

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.