Koppers Holdings Inc.
For the period ended Mar 31, 2025. Filed May 9, 2025.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Mar 31, 2025 · Filed May 9, 2025
KOP$29.33-2.1%Stored close · as of Nov 9, 2026
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Item 6. EXHIBITS
| 10.1* | Koppers Inc. Annual Incentive Plan, as amended and restated effective February 12, 2025. |
| 10.2 | Koppers Holdings Inc. Amended and Restated 2020 Long Term Incentive Plan (Incorporated herein by reference to Exhibit 99.1 to the Registration Statement on Form S-8 filed on May 9, 2025 by Koppers Holdings Inc. (File No. 333-287117) |
| 31.1* | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |
| 31.2* | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |
| 32.1* | Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
| 101.INS* | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded with the Inline XBRL document. |
| 101.SCH* | Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents |
| 104 | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) |
- Filed herewith.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
| KOPPERS HOLDINGS INC.(REGISTRANT) | |||
| Date: May 9, 2025 | By: | /s/ Jimmi Sue Smith | |
|---|---|---|---|
| Jimmi Sue SmithChief Financial Officer | |||
| (Principal Financial Officer and Duly Authorized Officer) | |||
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