Form4insider filings, from the source

Insider · CIK 0001450800

James A. Sullivan

Files at: KOP. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $4.4M · 2net −$4.4M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesMar 28Apr 27May 28Jun 28Jul 28Aug 28Sep 28

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 11, 2026 SForm 4 →Aug 12, 6:29 pm EDTKoppers Holdings Inc.KOP7,500$50.00$375,00082,898−8.30%
Aug 7, 2026 SForm 4 →Aug 11, 4:21 pm EDTKoppers Holdings Inc.KOP80,000$50.01$4,000,92190,398−46.9%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.