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KOP · Amended Current Report (Form 8-K/A) · Filed March 18, 2026

Koppers Holdings Inc — Amended Current Report (Form 8-K/A)

Form
8-K/A
Filed
March 18, 2026
Period
Jan 5, 2026
Ticker
KOP
Accession
0001315257-26-000017
Boardroom Alpha · Filing insights

KI forms transition deal with CFO Jimmi Smith; interim through Separation Date; transition through Feb 28, 2027, with cash and incentive compensation.

About Koppers Holdings Inc
Market cap
$817M
1Y TSR
+30.8%
3Y TSR
+9.1%
Board grade
B
Sector
Basic Materials
CEO
M Leroy Ball
Last annual meeting: May 7, 2026 · View full Koppers Holdings Inc profile →
kop-20260105

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_________________________________________________________
FORM 8-K/A
(Amendment No. 1)
_________________________________________________________
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): January 5, 2026
_________________________________________________________
KOPPERS HOLDINGS INC.
(Exact name of registrant as specified in its charter)
_________________________________________________________
Pennsylvania1-3273720-1878963
(State or other jurisdiction
of incorporation)
(Commission File Number)(IRS Employer
Identification No.)
436 Seventh Avenue
Pittsburgh, Pennsylvania
15219
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (412) 227-2001
Not Applicable
(Former name or former address, if changed since last report)
_________________________________________________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: (see General Instruction A.2. below)
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common StockKOPThe New York Stock Exchange
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company o
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o



Explanatory Note
This amended Current Report on Form 8-K (this “Amendment”) is being filed by Koppers Holdings Inc. (the “Company”) for the purpose of amending Item 5.02 of that certain Current Report on Form 8-K originally filed by the Company on January 9, 2026 (the “Original Form 8-K”), in connection with Jimmi Sue Smith’s agreement with the Company to retire from her position as the Company’s Chief Financial Officer effective January 5, 2026, her provision of transition services to the Company and her separation from service with the Company on February 28, 2026 (the “Separation Date”). This Amendment is being filed to provide the material terms of a transition agreement between Ms. Smith and Koppers Inc., a wholly owned subsidiary of the Company (“KI” and together with the Company, “Koppers”), regarding her separation from service with Koppers. Except as described below, all other information in the Original Form 8-K remains unchanged.
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On March 9, 2026, KI and Ms. Smith entered into a transition agreement (the “Transition Agreement”), effective as of March 17, 2026, in connection with Ms. Smith’s: (i) provision of continued services as Koppers’ Treasurer from January 5, 2026 through the Separation Date (the “Interim Employment Period”); (ii) her separation from service with Koppers at the conclusion of the Interim Employment Period; and (iii) her agreeing to assist in the transition of her services from the Separation Date through February 28, 2027 (the “Transition Period”).
Pursuant to the Transition Agreement, in exchange for Ms. Smith’s general release and waiver of claims, her employment and services during the Interim Employment Period and her agreement to provide transition services during the Transition Period, KI has agreed, among other things, to pay Ms. Smith $440,000, payable over the Transition Period and to allow Ms. Smith to remain eligible for her earned and unpaid 2025 annual cash incentive, based on actual business performance, which will be payable in a lump sum on or around April 4, 2026, which is the same time such annual cash incentive is paid to other executives. In addition, in consideration and conditioned upon her services during the Transition Period, KI has agreed to pay Ms. Smith $123,400 in the form of a lump sum cash payment (representing the value of the equity awards that Ms. Smith would have become vested in during the Transition Period) and $330,000, payable in a lump sum on or around April 8, 2027 (representing her target 2026 annual cash incentive opportunity she would have been eligible for during the Transition Period if she continued to be a full-time employee).
The foregoing description of the Transition Agreement does not purport to be complete and is qualified in its entirety by reference to the complete text of the Transition Agreement, a copy of which will be filed as an exhibit to the Company’s next Form 10-Q, which will be incorporated by reference herein.
Item 9.01 Financial Statements and Exhibits.
(d)Exhibits.
104Cover Page Interactive Data File (embedded within the Inline XBRL document).



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 hereunto duly authorized.
Dated: March 18, 2026
KOPPERS HOLDINGS INC.
By:/s/ Bradley A. Pearce
Bradley A. Pearce
Interim Chief Financial Officer and
Chief Accounting Officer

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Reference

Frequently asked questions

When did Koppers Holdings Inc file this 8-K/A?
Koppers Holdings Inc (KOP) filed this Amended Current Report (Form 8-K/A) with the SEC on March 18, 2026. The accession number assigned by EDGAR is 0001315257-26-000017.
What does an 8-K/A disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
KI forms transition deal with CFO Jimmi Smith; interim through Separation Date; transition through Feb 28, 2027, with cash and incentive compensation. This is Boardroom Alpha's one-line summary of the amended current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Koppers Holdings Inc's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K/A Koppers Holdings Inc has filed under CIK 1315257, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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