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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 41h ago
HOUSE PTR1h ago
SEC 13F1h ago
ROBINHOOD CHAIN1h ago
HOUSE PTR/SaleVerified data

Richard Dean McCormick sold COST

Self · COSTCO WHOLESALE CORP /NEW · Costco Wholesale Corporation - Common Stock

Side
SELL
Value range
$1,001 – $15K
Shares
Not disclosed
Price
—
Executed
Jul 30, 2026
Disclosed
Aug 14, 2026
Disclosure timeline15 days from execution to publication · legal deadline 45 days
Jul 30 executedAug 14, 2026 disclosed

COST · 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 15 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 · COST

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    15
    0xef5c…cbd4Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$50K
    47 sh
    		Nov 5, 2026Nov 5, 20:51 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0xc213…6c95Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$50K
    47 sh
    		Nov 5, 2026Nov 5, 20:51 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    17
    0xa855…3c74Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Burn / redemption
    		SELL$29K
    27 sh
    		Nov 5, 2026Nov 5, 02:27 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0xc213…6c95Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$29K
    27 sh
    		Nov 5, 2026Nov 5, 02:23 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x0892…fa67Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$29K
    27 sh
    		Nov 5, 2026Nov 5, 02:12 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x9f73…f1aeWallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$29K
    27 sh
    		Nov 5, 2026Nov 5, 02:12 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    17
    0xa855…3c74Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Burn / redemption
    		SELL$27K
    26 sh
    		Nov 5, 2026Nov 5, 01:56 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0xc213…6c95Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    26 sh
    		Nov 5, 2026Nov 5, 01:52 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    17
    0xa855…3c74Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Burn / redemption
    		SELL$27K
    25 sh
    		Nov 5, 2026Nov 5, 01:51 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x0892…fa67Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    26 sh
    		Nov 5, 2026Nov 5, 01:48 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x9f73…f1aeWallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    26 sh
    		Nov 5, 2026Nov 5, 01:48 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0xc213…6c95Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    25 sh
    		Nov 5, 2026Nov 5, 01:47 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x0892…fa67Wallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    25 sh
    		Nov 5, 2026Nov 5, 01:41 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    15
    0x9f73…f1aeWallet
    COSTCOSTCO WHOLESALE CORP /NEW
    Token transfer
    		TRANSFER$27K
    25 sh
    		Nov 5, 2026Nov 5, 01:40 UTC
    traded Nov 5, 2026
    		onchainROBINHOOD CHAIN

    Evidence

    26
    Pete SessionsRSelf
    COSTCOSTCO WHOLESALE CORP /NEW
    Sale
    		SELL$100K – $250KOct 13, 2026Oct 27, 2026
    traded Oct 13, 2026
    		+14dHOUSE PTR

    Evidence

    41
    Pete SessionsRSpouse
    COSTCOSTCO WHOLESALE CORP /NEW
    Sale
    		SELL$250K – $500KOct 2, 2026Oct 27, 2026
    traded Oct 2, 2026
    		+25dHOUSE PTR

    Evidence

    25
    Rick W. AllenRSpouse
    COSTCOSTCO WHOLESALE CORP /NEW
    Sale
    		SELL$1,001 – $15KSep 18, 2026Oct 14, 2026
    traded Sep 18, 2026
    		+26dHOUSE PTR

    Evidence

    24
    Dan NewhouseRSpouse
    COSTCOSTCO WHOLESALE CORP /NEW
    Purchase
    		BUY$1,001 – $15KJul 10, 2026Jul 17, 2026
    traded Jul 10, 2026
    		+7dHOUSE PTR

    Evidence

    24
    Gilbert Ray Cisneros, Jr.DSelf
    COSTCOSTCO WHOLESALE CORP /NEW
    Purchase
    		BUY$1,001 – $15KJan 30, 2026Feb 13, 2026
    traded Jan 30, 2026
    		+14dHOUSE PTR

    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
    20035204

    Timestamps

    Event (reported)
    Jul 30, 2026
    Published
    Aug 14, 2026
    Ingested by INSIDER
    Nov 5, 00:34 UTC
    Last re-read
    Nov 5, 06:47 UTC

    Extracted facts

    Filer
    Richard Dean McCormick
    Role
    Self
    Transaction
    SaleAs filed: “S”
    Asset
    Costco Wholesale Corporation - Common Stock
    Ticker
    COST
    Reported value
    $1,001 – $15KAs filed: “$1,001 - $15,000”
    Execution date (reported)
    Jul 30, 2026
    Notification date (reported)
    Aug 12, 2026
    Days from execution to publication
    15

    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 Costco Wholesale Corporation - Common Stock. 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
    COSTCO WHOLESALE CORP /NEWcik:0000909832

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.