SEC Form 4
Koppers Holdings, Inc. (KOP) insider trading
In the 12 months to Oct 23, 2026, 4 KOP insiders reported open-market sales of $5.6M across 11 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $5.6M
- 11 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
Who traded KOP, and when
- Sale
KOP daily close from Oct 23, 2025 to Oct 22, 2026, between $26.67 and $52.33, last $40.75. 11 sale and 0 purchase filings by 4 insiders, marked at their filing dates. James A. Sullivan, President and CTO: sold $4.4M across 2 filings, first filed Aug 11, 2026, last Aug 12, 2026. M. Leroy Ball, CEO: sold $1.1M across 7 filings, first filed Mar 4, 2026, last Sep 1, 2026. Bradley A. Pearce, CAO: sold $102.0K across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026. Stephen G. Lucas, SVP, Culture and Engagement: sold $58.3K across 1 filing, first filed Aug 13, 2026, last Aug 13, 2026.
Largest mark · tap a row for others
James A. Sullivan · President and CTO
Filing 1 of 2 within a week · $4,375,921 total
Sale $4,000,921
80,000 shares at $50.01 avg
Filed Aug 11, 2026 · traded Aug 7
Close on filing date $46.01
James A. Sullivan · President and CTO
President and CTO
$4.4M soldM. Leroy Ball · CEO
CEO
$1.1M soldBradley A. Pearce · CAO
CAO
$102.0K soldStephen G. Lucas · SVP, Culture and Engagement
SVP, Culture and Engagement
$58.3K soldHas Koppers Holdings, Inc.'s CEO sold stock?
Yes. M. Leroy Ball (CEO) sold 25,976 shares ($1.1M) between Mar 2026 and Sep 2026.
Open-market trades
11 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| James A. Sullivan | President and CTO | $4.4M | — | 2 | — | |
| M. Leroy Ball | CEO | $1.1M | — | 7 | — | |
| Bradley A. Pearce | CAO | $102.0K | — | 1 | — | |
| Stephen G. Lucas | SVP, Culture and Engagement | $58.3K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | M. Leroy Ball CEO | Sale | 4,000 | $45.96 | $183.8K | 429,555 | |
traded | M. Leroy Ball CEO | Sale | 3,000 | $45.84 | $137.5K | 433,555 | |
traded | Stephen G. Lucas SVP, Culture and Engagement | Sale | 1,308 | $44.55 | $58.3K | 34,345 | |
traded | James A. Sullivan President and CTO | Sale | 7,500 | $50.00 | $375.0K | 82,898 | |
traded | James A. Sullivan President and CTO | Sale | 80,000 | $50.01 | $4.0M | 90,498 | |
traded | Bradley A. Pearce CAO | Sale | 2,000 | $51.01 | $102.0K | 41,037 | |
traded | M. Leroy Ball CEO | Sale | 3,412 | $43.90 | $149.8K | 436,243 | |
traded | M. Leroy Ball CEO | Sale | 4,141 | $41.34 | $171.2K | 439,955 | |
traded | M. Leroy Ball CEO | Sale | 2,659 | $42.55 | $113.1K | 444,096 | |
traded | M. Leroy Ball CEO | Sale | 2,489 | $37.91 | $94.4K | 447,459 | |
traded | M. Leroy Ball CEO | Sale | 6,275 | $36.87 | $231.4K | 450,273 |
GET /stocks/filings/vX/form-4?tickers=KOP&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"KOP"
],
"issuer_cik": "0001315257",
"owner_cik": "0001229771",
"accession_number": "0001229771-26-000020",
"form_type": "4",
"filing_date": "2026-09-01",
"period_of_report": "2026-08-31",
"issuer_name": "Koppers Holdings Inc.",
"issuer_trading_symbol": "KOP",
"owner_name": "BALL M LEROY",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CEO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-31",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 4000,
"transaction_price_per_share": 45.96,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 429555.4007,
"transaction_value": 183840,
"not_subject_to_section_16": false,
"direct_or_indirect": "D"
},
{
"tickers": [
"KOP"
],
"issuer_cik": "0001315257",
"owner_cik": "0001229771",
"accession_number": "0001229771-26-000018",
"form_type": "4",
"filing_date": "2026-08-20",
"period_of_report": "2026-08-19",
"issuer_name": "Koppers Holdings Inc.",
"issuer_trading_symbol": "KOP",
"owner_name": "BALL M LEROY",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CEO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-19",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 3000,
"transaction_price_per_share": 45.84,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 433555.4007,
"transaction_value": 137520,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Includes 312 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan on June 30, 2026. These acquisitions were exempt\nunder both Rule 16b-3(c) and Rule 16b-3(d)."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 66 records
- Option exercises27 records
- Tax withholding15 records
- Grants and awards19 records
- Gifts5 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for KOP every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.