Eric D. Brenner - 26 May 2026 Form 4 Insider Report for Koppers Holdings Inc. (KOP)

Reporting relationship: CFO and Treasurer
Issuer ticker: KOP
Reported as of: 26 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 May 2026, 16:08:30 UTC
Source filing: View source filing
Reporting owner signature: /s/ Stephanie L. Apostolou, Attorney in Fact

Key filing fact

Eric D. Brenner filed Form 4 for Koppers Holdings Inc. (KOP) on 27 May 2026.

Key facts

This page summarizes Eric D. Brenner's Form 4 filing for Koppers Holdings Inc. (KOP).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 27 May 2026, 16:08.

Change

No earlier filing in this sequence is available for direct comparison.
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 0002136316 Primary reporting owner

Brenner Eric D.

Relationship: CFO and Treasurer
Address: 436 SEVENTH AVENUE, PITTSBURGH
Signature: /s/ Stephanie L. Apostolou, Attorney in Fact
Signature date: 27 May 2026

Reported non-derivative transactions

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

KOP transaction

Common Stock

Award

Transaction value
Shares: +6,620
Change %
Price: $0.000000^*
Shares after: 6,620
Date: 26 May 2026
Ownership: Direct
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The reporting person was awarded time-based restricted stock units on May 26, 2026, which will vest in four annual installments of 25 percent beginning January 5, 2027.