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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 452m ago
HOUSE PTR52m ago
SEC 13F51m ago
ROBINHOOD CHAIN51m ago
SEC FORM 4/Grant or awardVerified data

Sandifer Andrew D reported KOP

Director · Koppers Holdings Inc. · Koppers Holdings Inc. — Dividend Equivalent Rights

Side
A
Value
—
Shares
5.27
Price
—
Executed
Mar 23, 2026
Disclosed
Mar 25, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Mar 23 executedMar 25, 2026 disclosed

KOP · 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 · 6.3% 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 · KOP

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    29
    LG
    Lucas Stephen GSVP, Culture and Engagement
    KOPKoppers Holdings Inc.
    Open-market sale
    		SELL$58K
    1,308 sh
    		Aug 12, 2026Aug 13, 2026
    traded Aug 12, 2026
    		+1dSEC FORM 4

    Evidence

    29
    PA
    Pearce Bradley ACAO
    KOPKoppers Holdings Inc.
    Open-market sale
    		SELL$102K
    2,000 sh
    		Aug 10, 2026Aug 11, 2026
    traded Aug 10, 2026
    		+1dSEC FORM 4

    Evidence

    9
    BD
    Brenner Eric D.CFO and Treasurer
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    6,620 sh
    		May 26, 2026May 27, 2026
    traded May 26, 2026
    		+1dSEC FORM 4

    Evidence

    21
    PJ
    Posadas Laura JDirector
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    3,280 sh
    		May 7, 2026May 11, 2026
    traded May 7, 2026
    		+4dSEC FORM 4

    Evidence

    9
    PJ
    Posadas Laura JDirector
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    11 sh
    		May 7, 2026May 11, 2026
    traded May 7, 2026
    		+4dSEC FORM 4

    Evidence

    9
    PJ
    Posadas Laura JDirector
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    11 sh
    		May 7, 2026May 11, 2026
    traded May 7, 2026
    		+4dSEC FORM 4

    Evidence

    21
    SD
    Sandifer Andrew DDirector
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    50 sh
    		Mar 23, 2026Mar 25, 2026
    traded Mar 23, 2026
    		+2dSEC FORM 4

    Evidence

    9
    PJ
    Posadas Laura JDirector
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    11 sh
    		Mar 23, 2026Mar 25, 2026
    traded Mar 23, 2026
    		+2dSEC FORM 4

    Evidence

    21
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    53 sh
    		Feb 26, 2026Mar 2, 2026
    traded Feb 26, 2026
    		+4dSEC FORM 4

    Evidence

    13
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    2,303 sh
    		Feb 26, 2026Mar 2, 2026
    traded Feb 26, 2026
    		+4dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    53 sh
    		Feb 26, 2026Mar 2, 2026
    traded Feb 26, 2026
    		+4dSEC FORM 4

    Evidence

    13
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Tax withholding
    		F$38K
    1,021 sh
    		Feb 26, 2026Mar 2, 2026
    traded Feb 26, 2026
    		+4dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    53 sh
    		Feb 26, 2026Mar 2, 2026
    traded Feb 26, 2026
    		+4dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    1,489 sh
    		Jan 5, 2026Jan 6, 2026
    traded Jan 5, 2026
    		+1dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    85 sh
    		Jan 5, 2026Jan 6, 2026
    traded Jan 5, 2026
    		+1dSEC FORM 4

    Evidence

    16
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Tax withholding
    		F$55K
    2,032 sh
    		Jan 5, 2026Jan 6, 2026
    traded Jan 5, 2026
    		+1dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    316 sh
    		Jan 2, 2026Jan 6, 2026
    traded Jan 2, 2026
    		+4dSEC FORM 4

    Evidence

    13
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    10 sh
    		Jan 2, 2026Jan 6, 2026
    traded Jan 2, 2026
    		+4dSEC FORM 4

    Evidence

    9
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Option exercise
    		M—
    85 sh
    		Jan 5, 2026Jan 6, 2026
    traded Jan 5, 2026
    		+1dSEC FORM 4

    Evidence

    13
    LT
    Lovalekar TusharVP, Information Technology
    KOPKoppers Holdings Inc.
    Grant or award
    		A—
    2,396 sh
    		Jan 5, 2026Jan 6, 2026
    traded Jan 5, 2026
    		+1dSEC 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
    0001739998-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Mar 23, 2026
    Published
    Mar 25, 2026
    Ingested by INSIDER
    Nov 5, 04:09 UTC
    Last re-read
    Nov 5, 04:09 UTC

    Extracted facts

    Filer
    Sandifer Andrew D
    Role
    Director
    Transaction
    Grant or awardAs filed: “A”
    Asset
    Koppers Holdings Inc. — Dividend Equivalent Rights
    Ticker
    KOP
    Shares
    5.27
    Price per share
    $0
    Execution date (reported)
    Mar 23, 2026
    Owned after transaction
    89 shares
    Days from execution to publication
    2

    What this establishes

    Sandifer Andrew D filed this Form 4 reporting a grant or award of KOP on Mar 23, 2026. It became public on Mar 25, 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
    Sandifer Andrew Dcik:0001739998
    Issuer
    Koppers Holdings Inc.cik:0001315257

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.