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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 ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Daily Brief03Live04Congress05Corporate Insiders06Government Money07Political Influence08Institutions09Washington Network10Follow the Power11Disclosure Clock12AI Investigator13Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 418m ago
HOUSE PTR18m ago
SEC 13F18m ago
ROBINHOOD CHAIN18m ago
HOUSE PTR/SaleVerified data

Richard Dean McCormick sold AMT

Self · AMERICAN TOWER CORP /MA/ · American Tower Corporation

Side
SELL
Value range
$1,001 – $15K
Shares
Not disclosed
Price
—
Executed
Apr 17, 2026
Disclosed
May 12, 2026
Disclosure timeline25 days from execution to publication · legal deadline 45 days
Apr 17 executedMay 12, 2026 disclosed

AMT · 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
20/ 100 · ROUTINE
Methodology →
  • Transaction type+10 / 20

    Sale

  • Relative size+2 / 25

    Disclosed range starting at $1K

  • Filing timing0 / 15

    Disclosed 25 days after execution (STOCK Act deadline: 45)

  • 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 · AMT

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    20
    Dwight EvansDSelf
    AMTAMERICAN TOWER CORP /MA/
    Sale
    		SELL$1,001 – $15KMay 11, 2026May 15, 2026
    traded May 11, 2026
    		+4dHOUSE PTR

    Evidence

    21
    DT
    Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec
    AMTAMERICAN TOWER CORP /MA/
    Grant or award
    		A—
    11.1K sh
    		Feb 25, 2026Feb 27, 2026
    traded Feb 25, 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
    House Periodic Transaction Report
    Publisher
    Clerk of the U.S. House of Representatives
    Document ID
    20034542

    Timestamps

    Event (reported)
    Apr 17, 2026
    Published
    May 12, 2026
    Ingested by INSIDER
    Nov 5, 06:47 UTC
    Last re-read
    Nov 5, 06:47 UTC

    Extracted facts

    Filer
    Richard Dean McCormick
    Role
    Self
    Transaction
    SaleAs filed: “S”
    Asset
    American Tower Corporation
    Ticker
    AMT
    Reported value
    $1,001 – $15KAs filed: “$1,001 - $15,000”
    Execution date (reported)
    Apr 17, 2026
    Notification date (reported)
    May 7, 2026
    Days from execution to publication
    25

    Calculation

    Midpoint = (low + high) / 2. Used only to rank and sum ranges; the true value can be anywhere in the range.

    • Low: $1,001
    • High: $15,000

    = $8,001

    What this establishes

    Richard Dean McCormick reported a sale of American Tower Corporation. Members report a value range, not an exact amount, and do not report share counts or prices. Dates are as entered by the filer. A trade report is not evidence of wrongdoing.

    Extraction

    Method
    PDF text extraction
    Confidence
    1.00
    Self
    Richard Dean McCormickhouse:ga06:mccormick-richard-dean-dr
    Issuer
    AMERICAN TOWER CORP /MA/cik:0001053507

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.