STOCK TITAN

[Form 4] Koppers Holdings Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4

Sonja Michelle Wilkerson, a director of Koppers Holdings Inc. (KOP), reported dividend equivalent rights (DERs) credited with certain restricted stock units (RSUs). The Form 4 shows a transaction dated 09/15/2025 recording 28.255 DERs acquired at a $0 price, increasing her reported beneficial ownership to 221.809 shares (or share equivalents). The filing states each DER is economically equivalent to one share of Koppers common stock and explains these DERs relate to deferred compensation payable under the company’s Director Deferred Compensation Plan, with payment timing elected by the reporting person. The filing also corrects prior reporting by adding 25.518 DERs that were inadvertently omitted from earlier disclosures. The submission is signed by an attorney-in-fact on behalf of the reporting person.

Sonja Michelle Wilkerson, direttrice di Koppers Holdings Inc. (KOP), ha riferito diritti di equivalente a dividendo (DER) accreditati insieme a certe unità azionarie restritte (RSU). Il Form 4 mostra una transazione datata 15/09/2025 registrando 28,255 DER acquistati a prezzo $0, innalzando la proprietà effettiva dichiarata a 221.809 azioni (o equazioni azionarie). Il verbale afferma che ciascun DER è economicamente equivalente a una azione comune di Koppers e spiega che questi DER sono legati a una retribuzione differita prevista dal Piano di Retribuzione Differita per i Membri del Consiglio, con il momento di pagamento scelto dalla persona che segnala. Il verbale corregge anche comunicazioni precedenti aggiungendo 25.518 DER che erano stati omessi per errore nelle divulgazioni precedenti. La presentazione è firmata da un procuratore in nome della persona che segnala.

Sonja Michelle Wilkerson, directora de Koppers Holdings Inc. (KOP), reportó derechos de equivalencia de dividendos (DERs) acreditados junto con ciertas RSUs (unidades de acciones restringidas). El Formulario 4 muestra una operación fechada el 15/09/2025 que registra 28,255 DER adquiridos a un precio de $0, aumentando su propiedad beneficiosa reportada a 221,809 acciones (o equivalentes). El archivo indica que cada DER es económicamente equivalente a una acción común de Koppers y explica que estos DER se relacionan con una compensación diferida pagadera bajo el Plan de Compensación Diferida para Directores de la empresa, con el momento de pago elegido por la persona que reporta. El archivo también corrige informes anteriores al añadir 25,518 DER que fueron omitidos inadvertidamente en divulgaciones previas. La presentación está firmada por un apoderado en nombre de la persona que reporta.

Sonja Michelle Wilkerson은 Koppers Holdings Inc. (KOP)의 이사로서 특정 제한주식단위(RSUs)와 함께 배당금 등가권(DERs)을 인정받았다고 보고했습니다. Form 4에는 2025년 9월 15일자로 28,255 DER를 $0의 가격에 취득한 거래가 표시되며 보고된 실질 소유 지분이 221,809주(또는 주당 등가물)로 증가합니다. 신고서는 각 DER이 Koppers 보통주와 경제적으로 등가하며, 이 DER가 회사의 이사 보상계획에 따른 지연 보상과 관련이 있고 지급 시점은 보고자가 선택했다고 설명합니다. 또한 이번 신고서는 이전에 누락되었던 25,518 DER를 추가하여 이전 공시를 정정합니다. 제출은 보고자를 대신해 법정대리인이 서명했습니다.

Sonja Michelle Wilkerson, administratrice de Koppers Holdings Inc. (KOP), a déclaré des droits équivalents à des dividendes (DER) crédités avec certaines RSU (unités d’actions restreintes). Le Form 4 montre une opération datée du 15/09/2025 enregistrant 28,255 DER acquis à un prix de 0 $, ce qui augmente la propriété bénéficiaire déclarée à 221,809 actions (ou équivalents). Le dépôt précise que chaque DER est économiquement équivalent à une action ordinaire de Koppers et explique que ces DER se rapportent à une rémunération différée payable en vertu du Plan de rémunération différée des administrateurs de l’entreprise, le paiement étant choisi par la personne qui déclare. Le dépôt corrige également des informations antérieures en ajoutant 25,518 DER qui avaient été omis par inadvertance dans des divulations précédentes. La soumission est signée par un mandataire agissant au nom de la personne déclarant.

Sonja Michelle Wilkerson, eine Direktorin von Koppers Holdings Inc. (KOP), meldete Dividendengleichberechtigungsrechte (DERs), die bestimmten Restricted Stock Units (RSUs) gutgeschrieben wurden. Das Formular 4 zeigt eine Transaktion vom 15.09.2025, bei der 28.255 DERs zu einem Preis von 0 $ erworben wurden, was das berichtete wirtschaftliche Eigentum auf 221.809 Aktien (oder Aktienäquivalente) erhöht. Im Filing wird angegeben, dass jeder DER wirtschaftlich äquivalent zu einer Koppers-Stammaktie ist und erklärt, dass diese DER im Zusammenhang mit einer unter dem Directors Deferred Compensation Plan des Unternehmens zahlbaren verzögerten Vergütung stehen, deren Zahlungszeitpunkt von der meldenden Person gewählt wird. Die Einreichung korrigiert außerdem frühere Meldungen, indem 25.518 DERs hinzugefügt werden, die in früheren Offenlegungen versehentlich ausgelassen wurden. Die Einreichung ist von einem Bevollmächtigten im Namen der meldenden Person unterzeichnet.

سونيا ميشيل ويلكيرسن، مديرة في كوبرز هولدينغز إنك (KOP)، أبلغت عن حقوق مكافئية للأرباح (DERs) مُدرجة مع وحدات أسهم مقيدة معينة (RSUs). يظهر النموذج 4 معاملة تاريخها 15/09/2025 تسجل 28.255 DERs مكتسبة بسعر 0 دولار، مما يزيد من ملكيتها المفيدة المبلغ عنها إلى 221.809 سهماً (أو ما يعادلها من الأسهم). يوضح الملف أن كل DER مكافئ اقتصادياً لسهم عادي من كوبرز ويشرح أن هذه DER مرتبطة بتعويض مؤجل قابل للدفع بموجب خطة التعويض المؤجل للمخرجين في الشركة، مع اختيار وقت الدفع من قبل الشخص المبلغ عنه. كما يصحح الإيداع تقارير سابقة بإضافة 25.518 DERs التي تم حذفها عن غير قصد من الإفشاءات السابقة. التقديم موقّع من وكيل قانوني نيابة عن الشخص المبلغ عنه.

Sonja Michelle Wilkerson,Koppers Holdings Inc.(KOP)的董事,报告了与某些受限股票单位(RSUs)相关的股息等价权(DERs)。 Form 4 显示日期为 2025-09-15 的交易,记录以 0 美元价格取得 28.255 个 DER,使其报告的实际所有权增至 221.809 股(或等值股份)。申报指出每个 DER 在经济上等同于 Koppers 普通股,并解释这些 DER 与公司董事延期薪酬计划下的延迟给付相关,给付时间由申报人自行选择。申报还通过添加先前披露中被无意遗漏的 25.518 个 DER 来纠正此前的报告。提交由代表申报人的授权代理人签署。

Positive
  • Correction filed to include 25.518 DERs that were inadvertently omitted, improving disclosure accuracy
  • Transparent explanation that DERs are economic equivalents of common shares and tied to the Director Deferred Compensation Plan
Negative
  • Prior omission of 25.518 DERs required correction, indicating earlier under-reporting of director share-equivalents

Insights

TL;DR: Director received deferred-compensation DERs and the filing corrects an earlier omission; governance disclosure improved.

The Form 4 documents non-cash compensation in the form of dividend equivalent rights tied to RSUs under the Director Deferred Compensation Plan. Reporting the accrual and the correction of 25.518 previously unreported DERs enhances transparency on director compensation and ownership. Because the transaction is compensation-related and recorded at a $0 price, it does not reflect open-market trading risk or cash proceeds. The disclosure is routine but important for accurate insider ownership tracking.

TL;DR: Transaction is a compensation accrual with immaterial market impact; corrected prior omission is the primary takeaway.

The 09/15/2025 entry shows 28.255 DERs added and a post-transaction beneficial ownership of 221.809 share-equivalents. Because the DERs are economic equivalents of shares and were recorded at $0, there is no cash consideration or sale disclosed. The correction adding 25.518 DERs that were not previously reported is the only notable irregularity; it should be tracked for historical ownership consistency but is unlikely to materially affect KOP’s capitalization or liquidity.

Sonja Michelle Wilkerson, direttrice di Koppers Holdings Inc. (KOP), ha riferito diritti di equivalente a dividendo (DER) accreditati insieme a certe unità azionarie restritte (RSU). Il Form 4 mostra una transazione datata 15/09/2025 registrando 28,255 DER acquistati a prezzo $0, innalzando la proprietà effettiva dichiarata a 221.809 azioni (o equazioni azionarie). Il verbale afferma che ciascun DER è economicamente equivalente a una azione comune di Koppers e spiega che questi DER sono legati a una retribuzione differita prevista dal Piano di Retribuzione Differita per i Membri del Consiglio, con il momento di pagamento scelto dalla persona che segnala. Il verbale corregge anche comunicazioni precedenti aggiungendo 25.518 DER che erano stati omessi per errore nelle divulgazioni precedenti. La presentazione è firmata da un procuratore in nome della persona che segnala.

Sonja Michelle Wilkerson, directora de Koppers Holdings Inc. (KOP), reportó derechos de equivalencia de dividendos (DERs) acreditados junto con ciertas RSUs (unidades de acciones restringidas). El Formulario 4 muestra una operación fechada el 15/09/2025 que registra 28,255 DER adquiridos a un precio de $0, aumentando su propiedad beneficiosa reportada a 221,809 acciones (o equivalentes). El archivo indica que cada DER es económicamente equivalente a una acción común de Koppers y explica que estos DER se relacionan con una compensación diferida pagadera bajo el Plan de Compensación Diferida para Directores de la empresa, con el momento de pago elegido por la persona que reporta. El archivo también corrige informes anteriores al añadir 25,518 DER que fueron omitidos inadvertidamente en divulgaciones previas. La presentación está firmada por un apoderado en nombre de la persona que reporta.

Sonja Michelle Wilkerson은 Koppers Holdings Inc. (KOP)의 이사로서 특정 제한주식단위(RSUs)와 함께 배당금 등가권(DERs)을 인정받았다고 보고했습니다. Form 4에는 2025년 9월 15일자로 28,255 DER를 $0의 가격에 취득한 거래가 표시되며 보고된 실질 소유 지분이 221,809주(또는 주당 등가물)로 증가합니다. 신고서는 각 DER이 Koppers 보통주와 경제적으로 등가하며, 이 DER가 회사의 이사 보상계획에 따른 지연 보상과 관련이 있고 지급 시점은 보고자가 선택했다고 설명합니다. 또한 이번 신고서는 이전에 누락되었던 25,518 DER를 추가하여 이전 공시를 정정합니다. 제출은 보고자를 대신해 법정대리인이 서명했습니다.

Sonja Michelle Wilkerson, administratrice de Koppers Holdings Inc. (KOP), a déclaré des droits équivalents à des dividendes (DER) crédités avec certaines RSU (unités d’actions restreintes). Le Form 4 montre une opération datée du 15/09/2025 enregistrant 28,255 DER acquis à un prix de 0 $, ce qui augmente la propriété bénéficiaire déclarée à 221,809 actions (ou équivalents). Le dépôt précise que chaque DER est économiquement équivalent à une action ordinaire de Koppers et explique que ces DER se rapportent à une rémunération différée payable en vertu du Plan de rémunération différée des administrateurs de l’entreprise, le paiement étant choisi par la personne qui déclare. Le dépôt corrige également des informations antérieures en ajoutant 25,518 DER qui avaient été omis par inadvertance dans des divulations précédentes. La soumission est signée par un mandataire agissant au nom de la personne déclarant.

Sonja Michelle Wilkerson, eine Direktorin von Koppers Holdings Inc. (KOP), meldete Dividendengleichberechtigungsrechte (DERs), die bestimmten Restricted Stock Units (RSUs) gutgeschrieben wurden. Das Formular 4 zeigt eine Transaktion vom 15.09.2025, bei der 28.255 DERs zu einem Preis von 0 $ erworben wurden, was das berichtete wirtschaftliche Eigentum auf 221.809 Aktien (oder Aktienäquivalente) erhöht. Im Filing wird angegeben, dass jeder DER wirtschaftlich äquivalent zu einer Koppers-Stammaktie ist und erklärt, dass diese DER im Zusammenhang mit einer unter dem Directors Deferred Compensation Plan des Unternehmens zahlbaren verzögerten Vergütung stehen, deren Zahlungszeitpunkt von der meldenden Person gewählt wird. Die Einreichung korrigiert außerdem frühere Meldungen, indem 25.518 DERs hinzugefügt werden, die in früheren Offenlegungen versehentlich ausgelassen wurden. Die Einreichung ist von einem Bevollmächtigten im Namen der meldenden Person unterzeichnet.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
WILKERSON SONJA MICHELLE

(Last) (First) (Middle)
436 SEVENTH AVENUE

(Street)
PITTSBURGH PA 15219

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Koppers Holdings Inc. [ KOP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
09/15/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Dividend Equivalent Rights (1) 09/15/2025 A 28.255 (2) (2) Common Stock 28.255 $0 221.809(3) D
Explanation of Responses:
1. The dividend equivalent rights ("DERs") accrued with respect to additional restricted stock unites ("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.
2. 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.
3. Includes 25.518 DERs that inadvertently were not previously reported.
Remarks:
/s/ Stephanie L. Apostolou, Attorney in Fact 09/17/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the Form 4 filed for KOP on 09/15/2025 report?

The filing reported the acquisition of 28.255 dividend equivalent rights (DERs) tied to restricted stock units and a post-transaction beneficial ownership of 221.809 share-equivalents.

What are dividend equivalent rights (DERs) in this filing?

The filing states each DER is the economic equivalent of one share of Koppers common stock and accrues with certain RSUs under the Director Deferred Compensation Plan.

Was there any correction or amendment disclosed in the Form 4?

Yes. The filing notes that 25.518 DERs were inadvertently not previously reported and are now included.

Did the reporting person sell or buy shares for cash?

No. The transaction is recorded as an accrual of DERs at a $0 price, indicating non-cash compensation rather than an open-market trade.

Who signed the Form 4 filing?

The form was signed by Stephanie L. Apostolou, Attorney in Fact on behalf of the reporting person on 09/17/2025.
Koppers Hldgs

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KOP Stock Data

568.20M
18.63M
5.27%
98.45%
4.59%
Specialty Chemicals
Lumber & Wood Products (no Furniture)
Link
United States
PITTSBURGH