Changes in Beneficial Ownership · 4
Koppers Holdings, Inc.
KOPNYSEEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4
wk-form4_1789503624.xml
Filing details
- Report period
- 2026-09-14
- Issuer
- Koppers Holdings Inc.
- Issuer CIK
- 0001315257
- Trading symbol
- KOP
Reporting owner 1
- Name
- WILKERSON SONJA MICHELLE
- Reporting owner CIK
- 0001245155
- Relationship
- Director
- Address
- 436 SEVENTH AVENUE, PITTSBURGH, PA, 15219
Derivative transactions
| Security | Conversion / exercise price (USD) | Transaction date | Code | Amount | A / D | Price (USD) | Exercisable | Expires | Underlying security | Underlying shares | Owned after | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend Equivalent Rights | [F1] | 2026-09-14 | A · Form 4 | 29.352 | A | 0 | [F2] | [F2] | Common Stock | 29.352 | 385.202 | D |
Table key
- A · Form 4
- Acquisition by grant, award or otherwise under Rule 16b-3(d)
- A
- Acquired
- D
- Direct
Footnotes
- F1
- The dividend equivalent rights ("DERs") accrued with respect to additional time-based restricted stock units ("RSUs") credited to the reporting person with respect to deferred compensation. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.↩ 1
- F2
- Once released, the RSUs corresponding to these DERs will become payable according to the election of payment designation that was filed by the reporting person subject to the Koppers Holdings Inc. Director Deferred Compensation Plan (the "Plan"). Such payment will be either lump sum or in annual installments commencing on the May 31st next following the reporting person's separation from service (as defined under the Plan) or, if later, and elected by the reporting person at the time he/she first elects to defer any payment under the Plan, May 31st of the year specified by the reporting person.↩ 1↩ 2
Signature 1
- Signed
- /s/ Stephanie L. Apostolou, Attorney in Fact
- Date
- 2026-09-15
Company context
Koppers (NYSE: KOP) is an integrated global provider of essential treated wood products, wood preservation technologies and carbon compounds. Our team of approximately 1,850 employees create, protect and preserve key elements of our global infrastructure - including railroad crossties, utility poles, outdoor wooden structures, and production feedstocks for steel, aluminum and construction materials, among others - applying decades of industry-leading expertise while constantly innovating to anticipate the needs of tomorrow. Together we are providing safe and sustainable solutions to enable rail transportation, keep power flowing, and create spaces of enjoyment for people everywhere. Protecting What Matters, Preserving The Future. Learn more at Koppers.com.