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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 ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
01Overview02Daily Brief03Live04Congress05Corporate Insiders06Government Money07Political Influence08Institutions09Washington Network10Follow the Power11Disclosure Clock12AI Investigator13Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 412m ago
HOUSE PTR12m ago
SEC 13F12m ago
ROBINHOOD CHAIN12m ago
SEC FORM 4/Tax withholdingVerified data

Harrison Robert W. reported CLH

EVP, EHS · CLEAN HARBORS INC · Common Stock

Side
F
Value
$3,851
Shares
16
Price
$240.71
Executed
Dec 15, 2025
Disclosed
Dec 17, 2025
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Dec 15 executedDec 17, 2025 disclosed

CLH · 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
9/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Tax withholding — administrative, little informational value

  • Relative size+1 / 25

$4K reported value · 0.3% 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 · CLH

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    12
    GH
    Geer Charles H. IIEVP, Industrial Services
    CLHCLEAN HARBORS INC
    Tax withholding
    		F$89K
    294 sh
    		Nov 2, 2026Nov 3, 2026
    traded Nov 2, 2026
    		+1dSEC FORM 4

    Evidence

    29
    PK
    Polito KarynDirector
    CLHCLEAN HARBORS INC
    Open-market purchase
    		BUY$39K
    125 sh
    		Oct 29, 2026Nov 2, 2026
    traded Oct 29, 2026
    		+4dSEC FORM 4

    Evidence

    23
    April McClain DelaneyDSelf
    CLHCLEAN HARBORS INC
    Sale
    		SELL$50K – $100KAug 25, 2026Sep 9, 2026
    traded Aug 25, 2026
    		+15dHOUSE PTR

    Evidence

    16
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Partial sale
    		SELL$1,001 – $15KJul 28, 2026Aug 3, 2026
    traded Jul 28, 2026
    		+6dHOUSE PTR

    Evidence

    16
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Partial sale
    		SELL$1,001 – $15KJul 24, 2026Aug 3, 2026
    traded Jul 24, 2026
    		+10dHOUSE PTR

    Evidence

    16
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Partial sale
    		SELL$1,001 – $15KJul 27, 2026Aug 3, 2026
    traded Jul 27, 2026
    		+7dHOUSE PTR

    Evidence

    15
    GH
    Geer Charles H. IIEVP, Industrial Services
    CLHCLEAN HARBORS INC
    Tax withholding
    		F$12K
    40 sh
    		Jul 1, 2026Jul 6, 2026
    traded Jul 1, 2026
    		+5dSEC FORM 4

    Evidence

    18
    UR
    Underwood RebeccaPRESIDENT & EVP FACILITIES
    CLHCLEAN HARBORS INC
    Tax withholding
    		F$90K
    311 sh
    		Jul 1, 2026Jul 6, 2026
    traded Jul 1, 2026
    		+5dSEC FORM 4

    Evidence

    20
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Partial sale
    		SELL$1,001 – $15KMay 1, 2026Jun 5, 2026
    traded May 1, 2026
    		+35dHOUSE PTR

    Evidence

    19
    DJ
    Diderich JeroenEVP&President of Sales&Service
    CLHCLEAN HARBORS INC
    Tax withholding
    		F$482K
    1,717 sh
    		Jun 1, 2026Jun 3, 2026
    traded Jun 1, 2026
    		+2dSEC FORM 4

    Evidence

    13
    PK
    Polito KarynDirector
    CLHCLEAN HARBORS INC
    Grant or award
    		A—
    652 sh
    		May 20, 2026May 22, 2026
    traded May 20, 2026
    		+2dSEC FORM 4

    Evidence

    16
    PK
    Polito KarynDirector
    CLHCLEAN HARBORS INC
    Grant or award
    		A$136K
    460 sh
    		May 11, 2026May 13, 2026
    traded May 11, 2026
    		+2dSEC FORM 4

    Evidence

    27
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Partial sale
    		SELL$1,001 – $15KApr 30, 2026May 6, 2026
    traded Apr 30, 2026
    		+6dHOUSE PTR

    Evidence

    28
    RL
    Reed Marcy L.Director
    CLHCLEAN HARBORS INC
    Open-market sale
    		SELL$241K
    836 sh
    		Mar 18, 2026Mar 19, 2026
    traded Mar 18, 2026
    		+1dSEC FORM 4

    Evidence

    9
    GH
    Geer Charles H. IIEVP, Industrial Services
    CLHCLEAN HARBORS INC
    Disposition to issuer
    		D—
    139 sh
    		Mar 13, 2026Mar 17, 2026
    traded Mar 13, 2026
    		+4dSEC FORM 4

    Evidence

    28
    April McClain DelaneyDDependent child
    CLHCLEAN HARBORS INC
    Purchase
    		BUY$15K – $50KFeb 23, 2026Mar 10, 2026
    traded Feb 23, 2026
    		+15dHOUSE PTR

    Evidence

    9
    GH
    Geer Charles H. IIEVP, Industrial Services
    CLHCLEAN HARBORS INC
    Grant or award
    		A—
    503 sh
    		Feb 1, 2026Feb 3, 2026
    traded Feb 1, 2026
    		+2dSEC FORM 4

    Evidence

    13
    DJ
    Diderich JeroenEVP&President of Sales&Service
    CLHCLEAN HARBORS INC
    Grant or award
    		A—
    1,047 sh
    		Feb 1, 2026Feb 3, 2026
    traded Feb 1, 2026
    		+2dSEC FORM 4

    Evidence

    12
    UR
    Underwood RebeccaPRESIDENT & EVP FACILITIES
    CLHCLEAN HARBORS INC
    Tax withholding
    		F$110K
    425 sh
    		Feb 2, 2026Feb 3, 2026
    traded Feb 2, 2026
    		+1dSEC FORM 4

    Evidence

    13
    UR
    Underwood RebeccaPRESIDENT & EVP FACILITIES
    CLHCLEAN HARBORS INC
    Grant or award
    		A—
    2,513 sh
    		Feb 1, 2026Feb 3, 2026
    traded Feb 1, 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
    0001954916-25-000005
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Dec 15, 2025
    Published
    Dec 17, 2025
    Ingested by INSIDER
    Nov 5, 04:27 UTC
    Last re-read
    Nov 5, 04:27 UTC

    Extracted facts

    Filer
    Harrison Robert W.
    Role
    EVP, EHS
    Transaction
    Tax withholdingAs filed: “F”
    Asset
    CLEAN HARBORS INC
    Ticker
    CLH
    Shares
    16
    Price per share
    $240.71
    Value
    $3,851
    Execution date (reported)
    Dec 15, 2025
    Owned after transaction
    5,785 shares
    Days from execution to publication
    2

    Calculation

    Value = shares × reported price per share

    • Shares: 16
    • Price: $240.71

    = $3,851

    What this establishes

    Harrison Robert W. filed this Form 4 reporting a tax withholding of CLH on Dec 15, 2025. It became public on Dec 17, 2025. 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
    EVP, EHS
    Harrison Robert W.cik:0001954916
    Issuer
    CLEAN HARBORS INCcik:0000822818

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.