M. Leroy Ball - 02 Jan 2026 Form 4 Insider Report for Koppers Holdings Inc. (KOP)

Reporting relationship: CEO, Director
Issuer ticker: KOP
Reported as of: 02 Jan 2026
Net transaction value: -$1,072,110
SEC form: 4
Accepted by SEC: 06 Jan 2026, 18:04:42 UTC
Prior SEC filing: 17 Dec 2025
Next SEC filing: 12 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Stephanie L. Apostolou, Attorney in Fact

Key filing fact

M. Leroy Ball filed Form 4 for Koppers Holdings Inc. (KOP) on 06 Jan 2026.

Key facts

This page summarizes M. Leroy Ball's Form 4 filing for Koppers Holdings Inc. (KOP).
9 reported transactions and 5 derivative rows are listed below.
Accepted by SEC: 06 Jan 2026, 18:04.

Change

Previous filing in this sequence was filed on 17 Dec 2025.
Current net transaction value: -$1,072,110.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001229771 Primary reporting owner

BALL M LEROY

Relationship: CEO, Director
Address: 436 SEVENTH AVENUE, PITTSBURGH
Signature: /s/ Stephanie L. Apostolou, Attorney in Fact
Signature date: 06 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KOP transaction

Common Stock

Award

Transaction value: $0
Shares: +27,152
Change %: +7.6%
Price: $0.000000
Shares after: 384,460
Date: 05 Jan 2026
Ownership: Direct
Footnotes: F1

KOP transaction

Common Stock

Options Exercise

Transaction value
Shares: +64,634
Change %: +17%
Price
Shares after: 449,094
Date: 05 Jan 2026
Ownership: Direct
Footnotes: F2

KOP transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +2,056
Change %: +0.46%
Price: $0.000000
Shares after: 451,150
Date: 05 Jan 2026
Ownership: Direct
Footnotes: F3

KOP transaction

Common Stock

Tax liability

Transaction value: $1,072,110
Shares: -39,811
Change %: -8.8%
Price: $26.93
Shares after: 411,339
Date: 05 Jan 2026
Ownership: Direct
Footnotes: F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

KOP transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +15,972
Change %: +33%
Price: $0.000000
Shares after: 64,634
Date: 02 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 15,972
Exercise price
Footnotes: F2, F5

KOP transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +12,360
Change %
Price: $0.000000
Shares after: 12,360
Date: 02 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 12,360
Exercise price
Footnotes: F2, F6

KOP transaction Derivative

Dividend Equivalent Rights

Award

Transaction value: $0
Shares: +519
Change %: +26%
Price: $0.000000
Shares after: 2,510
Date: 02 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 519
Exercise price
Footnotes: F7

KOP transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -64,634
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 05 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 64,634
Exercise price
Footnotes: F2, F8

KOP transaction Derivative

Dividend Equivalent Rights

Options Exercise

Transaction value: $0
Shares: -2,056
Change %: -82%
Price: $0.000000
Shares after: 454
Date: 05 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,056
Exercise price
Footnotes: F9

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 9 footnotes

Footnote F1

The reporting person was awarded time-based restricted stock units ("RSUs") on January 5, 2026, which will vest in annual installments of 25 percent over four years.

Footnote F2

Restricted stock units convert into common stock on a one-for-one basis.

Footnote F3

Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis.

Footnote F4

Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of RSUs and performance share units ("PSUs").

Footnote F5

On January 4, 2023, the reporting person was granted PSUs for which the performance criteria for the three-year performance period from January 1, 2023 through December 31, 2025 have been satisfied.

Footnote F6

On January 3, 2025, the reporting person was granted PSUs for which the performance criteria for the one-year performance period from January 1, 2025 through December 31, 2025 have been satisfied. All of the restricted stock units reported here are subject to vesting based on the continued service of the reporting person through January 5, 2028. If the Company's total shareholder return over the three-year period of January 1, 2025 through December 31, 2027 is negative, then the cumulative number of units that may vest for such three-year period will be capped at 150% of the target number.

Footnote F7

The DERs accrued with respect to additional PSUs credited to the reporting person with respect to PSUs granted on January 4, 2023 and January 3, 2025. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

Footnote F8

Represents previously granted PSUs for which the performance criteria for the three-year performance period from January 1, 2023 through December 31, 2025 have been satisfied, as reported in Table II above.

Footnote F9

These DERs were released in connection with the vesting of RSUs and PSUs granted on January 4, 2022, January 4, 2023, January 4, 2024, and January 3, 2025. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.