Simcoe Capital Management Acquires 7% Stake in Koppers Holdings Inc.

On May 19, 2026, Simcoe Capital Management, LLC, led by Managing Member Jeffrey Jacobowitz, filed a Schedule 13D reporting a new 7.0% stake in Koppers Holdings Inc. (KOP). The reporting group, which includes Simcoe Partners, L.P., Simcoe Select, L.P., and SDR Partners, LLC, collectively holds 1,349,005 shares of common stock. The shares were acquired through open market purchases using working capital, with an aggregate purchase price exceeding $45 million. The filers stated that the shares were purchased based on the belief that they were substantially undervalued. The reporting persons expressed support for management's current strategic plan to increase profitability, focus on free cash flow generation, reduce debt, and execute share repurchases. While the group currently supports the board and management, they reserved the right to engage in future communications regarding operations, governance, or capitalization. Recent transaction data indicates active buying throughout mid-May 2026 at prices ranging from approximately $39.05 to $43.20 per share.