M. Leroy Ball - 26 Feb 2026 Form 4 Insider Report for Koppers Holdings Inc. (KOP)

Reporting relationship: CEO, Director
Issuer ticker: KOP
Reported as of: 26 Feb 2026
Net transaction value: -$828,069
SEC form: 4
Accepted by SEC: 02 Mar 2026, 16:15:10 UTC
Prior SEC filing: 19 Feb 2026
Next SEC filing: 04 Mar 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 02 Mar 2026.

Key facts

This page summarizes M. Leroy Ball's Form 4 filing for Koppers Holdings Inc. (KOP).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 02 Mar 2026, 16:15.

Change

Previous filing in this sequence was filed on 19 Feb 2026.
Current net transaction value: -$828,069.

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: 02 Mar 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: +50,025
Change %: +12%
Price: $0.000000
Shares after: 477,569
Date: 26 Feb 2026
Ownership: Direct
Footnotes: F1

KOP transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +1,215
Change %: +0.25%
Price: $0.000000
Shares after: 478,784
Date: 26 Feb 2026
Ownership: Direct
Footnotes: F2

KOP transaction

Common Stock

Tax liability

Transaction value: $828,069
Shares: -22,236
Change %: -4.6%
Price: $37.24
Shares after: 456,548
Date: 26 Feb 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

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

KOP transaction Derivative

Dividend Equivalent Rights

Award

Transaction value: $0
Shares: +1,215
Change %: +268%
Price: $0.000000
Shares after: 1,669
Date: 26 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,215
Exercise price
Footnotes: F4

KOP transaction Derivative

Dividend Equivalent Rights

Options Exercise

Transaction value: $0
Shares: -1,215
Change %: -73%
Price: $0.000000
Shares after: 454
Date: 26 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,215
Exercise price
Footnotes: F5

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

On January 4, 2023, the reporting person was granted performance share units ("PSUs") for which the performance criteria for the measurement period from January 1, 2023 through December 31, 2025 have been satisfied.

Footnote F2

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

Footnote F3

Shares surrendered to the issuer by the reporting person as payment for the tax withholding related to the vesting of PSUs.

Footnote F4

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

Footnote F5

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