Koppers Holdings Inc. · NYSE:KOP

Simcoe Capital Management, LLC reported a 5.60% stake in Koppers Holdings Inc. (Schedule 13D/A)

Event Oct 20, 2026 · Filed Oct 22, 2026

Simcoe Capital Management, LLC reported a 5.60% stake in Koppers Holdings Inc., 1,063,279 shares, with active intent on Oct 20, 2026. Filed Oct 22, 2026 (Schedule 13D/A).

Stake
5.60%
Shares
1,063,279
Intent
Active
What changed
Stake changed
Filed together
6 holders

The filing in full

HolderStakeShares
Simcoe Capital Management, LLC5.60%1,063,279
SIMCOE PARTNERS L P4.60%873,494
Simcoe Select, LP0.80%154,000
SIMCOE MANAGEMENT COMPANY, LLC5.40%1,027,494
SDR Partners, LLC0.20%35,785
Jacobowitz Jeffrey5.60%1,063,279

Source

Download original · View original at SEC

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