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James A. Sullivan
President and CTO

James A. Sullivan insider trades: Koppers Holdings (KOP) stock buys and sales

President and CTO, Koppers Holdings Last trade Aug 11, 2026 63 Form 4 filings
$4.4M
Sold, last 12 months
2 sales
$0
Bought, last 12 months
0 buys
16
Open-market trades
since 2011
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where James reports to the SEC

Open-market buys and sales

16 trades reported on SEC Form 4, newest first

DateStockTypeValue
Aug 11, 2026KOP↓ Sell$375K
Aug 7, 2026KOP↓ Sell$4.0M
Mar 5, 2024KOP↓ Sell$2.0M
Mar 4, 2024KOP↓ Sell$16K
Mar 1, 2024KOP↓ Sell$584K
Dec 14, 2023KOP↓ Sell$27K
Dec 13, 2023KOP↓ Sell$984K
Dec 11, 2023KOP↓ Sell$870K
Dec 7, 2023KOP↓ Sell$739K
Dec 5, 2023KOP↓ Sell$792K
Dec 17, 2018KOP↑ Buy$82K
Aug 14, 2018KOP↑ Buy$36K
Mar 3, 2015KOP↑ Buy$68K
Mar 22, 2013CCC↓ Sell$436K
Mar 20, 2013CCC↓ Sell$185K
Nov 28, 2011CCC↑ Buy$32K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other KOP insiders

Open-market trades in the last 12 months

About James A. Sullivan's insider trades

James A. Sullivan is President and CTO at Koppers Holdings (KOP). Since Nov 28, 2011, James has reported 4 open-market purchases worth $217K and 12 sales worth $11.0M on SEC Form 4. In the last 12 months: 2 sales ($4.4M).

Their filings also include shares withheld for taxes (35 filings), grants and awards (29 filings), option exercises (20 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every KOP insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.