Koppers Holdings Inc.
For the period ended Dec 31, 2025. Filed Feb 26, 2026.
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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.
FY2025 · Filed Feb 26, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Signatures
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, Koppers Holdings Inc. has duly caused this annual report on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized.
| KOPPERS HOLDINGS INC. | |
| BY: | /s/ BRADLEY A. PEARCE |
| Bradley A. Pearce | |
| Interim Chief Financial Officer and Chief Accounting Officer |
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this annual report on Form 10-K has been signed below by the following persons on behalf of the Registrant and in the capacities and on the date indicated.
| Signature | Capacity | Date | |
|---|---|---|---|
| /S/ LEROY M. BALL | Chair of the Board and ChiefExecutive Officer (Principal Executive Officer) | February 26, 2026 | |
| Leroy M. Ball | |||
| /S/ BRADLEY A. PEARCE | Interim Chief Financial Officer and Chief Accounting Officer (Principal Financial Officer and Principal Accounting Officer) | February 26, 2026 | |
| Bradley A. Pearce | |||
| Xudong Feng, Ph.D. | Director | ||
| Traci L. Jensen | Director | ||
| David L. Motley | Director | By | /S/ LEROY M. BALL |
| Albert J. Neupaver | Director | Leroy M. Ball Attorney-in-Fact | |
| Laura J. Posadas | Director | ||
| Andrew D. Sandifer | Director | ||
| Nishan J. Vartanian | Director | February 26, 2026 | |
| Sonja M. Wilkerson | Director | ||
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