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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 43h ago
HOUSE PTR3h ago
SEC 13F3h ago
ROBINHOOD CHAIN3h ago
SEC FORM 4/Grant or awardVerified data

Bell David T reported CTM

Chief Financial Officer, Treasurer · Castellum, Inc. · Common Stock

Side
A
Value
$604
Shares
1,329
Price
$0.45
Executed
Mar 31, 2026
Disclosed
Mar 31, 2026
Disclosure timeline0 days from execution to publication · legal deadline 2 business days
Mar 31 executedMar 31, 2026 disclosed

CTM · 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

$604 reported value · 9.0% of prior position

  • Filing timing0 / 15

    Disclosed 0 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 · CTM

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    48
    BT
    Bell David TChief Financial Officer, Treasurer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$747
    1,396 sh
    		Oct 1, 2026Oct 1, 2026
    traded Oct 1, 2026
    		+0dSEC FORM 4

    Evidence

    40
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$747
    1,396 sh
    		Oct 1, 2026Oct 1, 2026
    traded Oct 1, 2026
    		+0dSEC FORM 4

    Evidence

    48
    ML
    Martin Tammy LGeneral Counsel and Secretary
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$747
    1,396 sh
    		Oct 1, 2026Oct 1, 2026
    traded Oct 1, 2026
    		+0dSEC FORM 4

    Evidence

    40
    IR
    Ives Glen RDirector, President, Chief Executive Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$910
    1,700 sh
    		Oct 1, 2026Oct 1, 2026
    traded Oct 1, 2026
    		+0dSEC FORM 4

    Evidence

    29
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$25K
    40.0K sh
    		Sep 9, 2026Sep 9, 2026
    traded Sep 9, 2026
    		+0dSEC FORM 4

    Evidence

    25
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$6,200
    10.0K sh
    		Sep 9, 2026Sep 9, 2026
    traded Sep 9, 2026
    		+0dSEC FORM 4

    Evidence

    5
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Grant or award
    		A$604
    1,329 sh
    		Mar 31, 2026Mar 31, 2026
    traded Mar 31, 2026
    		+0dSEC FORM 4

    Evidence

    30
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$1,285
    2,000 sh
    		Mar 27, 2026Mar 27, 2026
    traded Mar 27, 2026
    		+0dSEC FORM 4

    Evidence

    30
    IR
    Ives Glen RPresident, Chief Executive Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$1,231
    2,000 sh
    		Mar 27, 2026Mar 27, 2026
    traded Mar 27, 2026
    		+0dSEC FORM 4

    Evidence

    38
    IR
    Ives Glen RPresident, Chief Executive Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$6,649
    10.0K sh
    		Mar 26, 2026Mar 26, 2026
    traded Mar 26, 2026
    		+0dSEC FORM 4

    Evidence

    25
    MT
    McMillen Charles ThomasDirector
    CTMCastellum, Inc.
    Open-market sale
    		SELL$44K
    55.0K sh
    		Mar 18, 2026Mar 20, 2026
    traded Mar 18, 2026
    		+2dSEC FORM 4

    Evidence

    34
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Open-market purchase
    		BUY$2,395
    3,000 sh
    		Mar 18, 2026Mar 18, 2026
    traded Mar 18, 2026
    		+0dSEC FORM 4

    Evidence

    9
    CF
    Campbell John FrancisDirector
    CTMCastellum, Inc.
    Grant or award
    		A—
    100.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    MA
    Merriman AndrewChief Operating Officer
    CTMCastellum, Inc.
    Grant or award
    		A—
    275.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    BT
    Bell David TChief Financial Officer, Treasurer
    CTMCastellum, Inc.
    Grant or award
    		A—
    225.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    IR
    Ives Glen RPresident, Chief Executive Officer
    CTMCastellum, Inc.
    Grant or award
    		A—
    500.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    MT
    McMillen Charles ThomasDirector
    CTMCastellum, Inc.
    Grant or award
    		A—
    100.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    CS
    Champoux Bernard SDirector
    CTMCastellum, Inc.
    Grant or award
    		A—
    100.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+2dSEC FORM 4

    Evidence

    9
    AS
    Alarie Mark SDirector
    CTMCastellum, Inc.
    Grant or award
    		A—
    100.0K sh
    		Nov 11, 2025Nov 13, 2025
    traded Nov 11, 2025
    		+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
    0001944338-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Mar 31, 2026
    Published
    Mar 31, 2026
    Ingested by INSIDER
    Nov 5, 04:08 UTC
    Last re-read
    Nov 5, 04:08 UTC

    Extracted facts

    Filer
    Bell David T
    Role
    Chief Financial Officer, Treasurer
    Transaction
    Grant or awardAs filed: “A”
    Asset
    Castellum, Inc.
    Ticker
    CTM
    Shares
    1,329
    Price per share
    $0.45
    Value
    $604
    Execution date (reported)
    Mar 31, 2026
    Owned after transaction
    16.1K shares
    Days from execution to publication
    0

    Calculation

    Value = shares × reported price per share

    • Shares: 1,329
    • Price: $0.4544

    = $604

    What this establishes

    Bell David T filed this Form 4 reporting a grant or award of CTM on Mar 31, 2026. It became public on Mar 31, 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
    Chief Financial Officer, Treasurer
    Bell David Tcik:0001944338
    Issuer
    Castellum, Inc.cik:0001877939

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.