Albert J. Neupaver - 07 May 2026 Form 4 Insider Report for Koppers Holdings Inc. (KOP)

Reporting relationship: Director
Issuer ticker: KOP
Reported as of: 07 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 May 2026, 16:07:47 UTC
Prior SEC filing: 25 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Stephanie L. Apostolou, Attorney in Fact

Key filing fact

Albert J. Neupaver filed Form 4 for Koppers Holdings Inc. (KOP) on 11 May 2026.

Key facts

This page summarizes Albert J. Neupaver's Form 4 filing for Koppers Holdings Inc. (KOP).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 11 May 2026, 16:07.

Change

Previous filing in this sequence was filed on 25 Mar 2026.
Current net transaction value: $0.

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 0001190210 Primary reporting owner

NEUPAVER ALBERT J

Relationship: Director
Address: 436 SEVENTH AVENUE, PITTSBURGH
Signature: /s/ Stephanie L. Apostolou, Attorney in Fact
Signature date: 11 May 2026

Reported non-derivative transactions

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

KOP transaction

Common Stock

Options Exercise

Transaction value
Shares: +50
Change %: +0.06%
Price: $0.000000^*
Shares after: 83,834
Date: 07 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

KOP transaction Derivative

Dividend Equivalent Rights

Options Exercise

Transaction value
Shares: -50
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 07 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 50
Exercise price
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

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

Footnote F2

These DERs were released in connection with the vesting of RSUs granted on May 8, 2025. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.