Koppers Holdings Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Koppers Holdings Inc. (KOP), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are KOP insiders buying or selling?
In the last 12 months, Koppers Holdings Inc. insiders reported 0 open-market purchases ($0) and 11 sales ($5.6M) — net selling of $5.6M. Since May 2018, Trabud has recorded 106 Form 4 filings for KOP: 22 buys ($6.6M) and 84 sells ($28.5M).
Source: SEC EDGAR Form 4
What stands out
- No Koppers Holdings Inc. insider made an open-market purchase in the last 12 months; the 11 reported open-market sales totaled $5.6M.
Key Statistics (May 2018 – Sep 1, 2026)
Total Form 4 filings
106
SEC EDGAR
Insider filers
23
Insider buys (22)
$6.6M
Insider sells (84)
$28.5M
Insider sentiment
Net sellingNet insider flow of $21.9M in net selling since May 2018, and $5.6M in net selling over the last 12 months.
Recent KOP insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | Leroy M Ball | CEO | Sale | 4.0K | $45.96 | $183.8K | SEC ↗ |
| Aug 20, 2026 | Leroy M Ball | CEO | Sale | 3.0K | $45.84 | $137.5K | SEC ↗ |
| Aug 13, 2026 | Stephen G Lucas | SVP, Culture and Engagement | Sale | 1.3K | $44.55 | $58.3K | SEC ↗ |
| Aug 12, 2026 | James A. Sullivan | President and CTO | Sale | 7.5K | $50.00 | $375.0K | SEC ↗ |
| Aug 11, 2026 | Bradley A Pearce | CAO | Sale | 2.0K | $51.01 | $102.0K | SEC ↗ |
| Aug 11, 2026 | James A. Sullivan | President and CTO | Sale | 80.0K | $50.01 | $4.0M | SEC ↗ |
| Jun 23, 2026 | Leroy M Ball | CEO | Sale | 3.4K | $43.90 | $149.8K | SEC ↗ |
| Jun 15, 2026 | Leroy M Ball | CEO | Sale | 4.1K | $41.34 | $171.2K | SEC ↗ |
| May 14, 2026 | Leroy M Ball | CEO | Sale | 2.7K | $42.55 | $113.1K | SEC ↗ |
| Mar 18, 2026 | Leroy M Ball | CEO | Sale | 2.5K | $37.91 | $94.4K | SEC ↗ |
| Mar 4, 2026 | Leroy M Ball | CEO | Sale | 6.3K | $36.87 | $231.4K | SEC ↗ |
| Aug 18, 2025 | Leroy M Ball | CEO | Sale | 2.4K | $30.48 | $74.6K | SEC ↗ |
| Mar 20, 2025 | Leroy M Ball | CEO | Sale | 3.8K | $29.27 | $110.8K | SEC ↗ |
| Nov 20, 2024 | Stephen R Tritch | Director | Sale | 3.5K | $37.08 | $131.0K | SEC ↗ |
| Nov 20, 2024 | Leroy M Ball | CEO | Sale | 6.0K | $37.26 | $223.6K | SEC ↗ |
| Nov 18, 2024 | Leroy M Ball | CEO | Sale | 11.1K | $37.22 | $413.2K | SEC ↗ |
| Nov 14, 2024 | Leroy M Ball | CEO | Sale | 9.1K | $37.87 | $344.7K | SEC ↗ |
| Nov 13, 2024 | Bradley A Pearce | Chief Accounting Officer | Sale | 3.0K | $37.19 | $111.6K | SEC ↗ |
| Aug 30, 2024 | Leroy M Ball | CEO | Sale | 3.8K | $38.35 | $145.8K | SEC ↗ |
| Aug 28, 2024 | Leroy M Ball | CEO | Sale | 4.0K | $39.06 | $156.2K | SEC ↗ |
| Aug 20, 2024 | Joseph P Dowd | VP, Zero Harm | Sale | 5.5K | $37.72 | $208.1K | SEC ↗ |
| Jun 20, 2024 | Leroy M Ball | CEO | Sale | 2.3K | $39.73 | $90.0K | SEC ↗ |
| Jun 10, 2024 | Leroy M Ball | CEO | Sale | 5.0K | $43.07 | $215.3K | SEC ↗ |
| May 29, 2024 | Leroy M Ball | CEO | Sale | 5.0K | $42.75 | $213.7K | SEC ↗ |
| May 17, 2024 | Joseph P Dowd | VP, Zero Harm | Sale | 6.0K | $44.46 | $266.8K | SEC ↗ |
Showing the 25 most recent of 106 Form 4 filings for Koppers Holdings Inc..
Most active KOP insiders
- Leroy M Ball28 filings
- Joseph P Dowd13 filings
- James A. Sullivan12 filings
- Michael R. Johnson10 filings
- Leslie S Hyde8 filings
Ask anything about KOP insider activity
Use Trabud's AI agent to query Koppers Holdings Inc.'s Form 4 history in plain English — "Show me KOP CEO purchases this year" or compare it against any other ticker.
Open the AI agentKOP insider trading FAQ
Are Koppers Holdings Inc. insiders buying or selling?
In the last 12 months, Koppers Holdings Inc. insiders reported 0 open-market purchases ($0) and 11 sales ($5.6M) — net selling of $5.6M. Since May 2018, Trabud has recorded 106 Form 4 filings for KOP: 22 buys ($6.6M) and 84 sells ($28.5M). Over the full record that is net selling of $21.9M.
How many insiders trade KOP stock?
23 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Koppers Holdings Inc.. The most recent filing was accepted on Sep 1, 2026.
Where does Trabud get KOP insider trading data?
All KOP insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.