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Koppers Holdings Inc. (KOP) Insider Trading

Last 12 months

Insiders sold $5.62M and bought nothing on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. President and CTO James A. Sullivan sold $4M on Aug 7, 47% of their stake, outside a plan. The last open-market buy by an executive or director was in Mar 2023.

Net open-market
−$5.62M
0 buys · 11 sales
Under a 10b5-1 plan
0%
of the value sold
Insiders who bought / sold
0 / 4
executives and directors
Last open-market buy
Mar 2023
Mar 27, 2023

Get an email when KOP's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

  • Aug 31No plan
    M Leroy Ball
    CEO · sold 4,000 at $45.96
    $184k
    0.9% of stake
  • Aug 19No plan
    M Leroy Ball
    CEO · sold 3,000 at $45.84
    $138k
    0.7% of stake
  • Aug 12No plan
    Stephen G Lucas
    SVP, Culture and Engagement · sold 1,308 at $44.55
    $58k
    3.7% of stake
  • Aug 11No plan
    James A. Sullivan
    President and CTO · sold 7,500 at $50.00
    $375k
    8.3% of stake
  • Aug 10No plan
    Bradley A Pearce
    CAO · sold 2,000 at $51.01
    $102k
    4.6% of stake
  • Aug 7No plan
    James A. Sullivan
    President and CTO · sold 80,000 at avg $50.01
    $4M
    47% of stake
  • Jun 18No plan
    M Leroy Ball
    CEO · sold 3,412 at $43.90
    $150k
    0.8% of stake
  • Jun 11No plan
    M Leroy Ball
    CEO · sold 4,141 at $41.34
    $171k
    0.9% of stake
  • May 13No plan
    M Leroy Ball
    CEO · sold 2,659 at $42.55
    $113k
    0.6% of stake
  • Mar 17No plan
    M Leroy Ball
    CEO · sold 2,489 at $37.91
    $94k
    0.6% of stake
  • Mar 2No plan
    M Leroy Ball
    CEO · sold 6,275 at avg $36.87
    $231k
    1.4% of stake
  • Aug 15, 2025No plan
    M Leroy Ball
    CEO · sold 2,448 at $30.48
    $75k
    0.7% of stake
  • Mar 19, 2025No plan
    M Leroy Ball
    CEO · sold 3,784 at avg $29.27
    $111k
    1.0% of stake
  • Nov 19, 2024No plan
    Stephen R Tritch
    Director · sold 3,533 at $37.08
    $131k
    6.9% of stake
  • Nov 19, 2024No plan
    M Leroy Ball
    CEO · sold 6,000 at avg $37.26
    $224k
    1.9% of stake
  • Nov 14, 2024 – Nov 15, 2024No plan
    M Leroy Ball
    CEO · sold 11,103 at avg $37.22
    $413k
    3.4% of stake
  • Nov 12, 2024 – Nov 13, 2024No plan
    M Leroy Ball
    CEO · sold 9,102 at avg $37.87
    $345k
    2.8% of stake
  • Nov 12, 2024No plan
    Bradley A Pearce
    Chief Accounting Officer · sold 3,000 at $37.19
    $112k
    10% of stake
How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch KOP, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Related stocks: Lumber & Wood Products (No Furniture)

Spot a number that looks wrong? Check it in KOP's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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