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Koppers (NYSE: KOP) director awarded new dividend equivalent rights

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

Rhea-AI Filing Summary

WILKERSON SONJA MICHELLE reported acquisition or exercise transactions in this Form 4 filing.

Koppers Holdings Inc. director Sonja Michelle Wilkerson received a grant of 30.347 Dividend Equivalent Rights tied to time-based restricted stock units under the company’s director deferred compensation plan. Each right is the economic equivalent of one share of Koppers common stock.

Following this compensation-related award, Wilkerson holds a total of 355.850 Dividend Equivalent Rights. The related restricted stock units will be paid in a lump sum or annual installments according to her prior deferral elections, generally beginning on the May 31 following her separation from service or a later elected May 31 date.

Positive

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Insider WILKERSON SONJA MICHELLE
Role null
Type Security Shares Price Value
Grant/Award Dividend Equivalent Rights 30.347 $0.00 --
Holdings After Transaction: Dividend Equivalent Rights — 355.85 shares (Direct, null)
Footnotes (1)
  1. 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. 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.
Dividend Equivalent Rights granted 30.347 rights Award dated June 15, 2026
Total Dividend Equivalent Rights after grant 355.850 rights Holdings following transaction
Grant price per right $0.0000 Non-cash compensation award
Underlying common stock equivalent 30.347 shares Each right equals one Koppers common share economically
Dividend Equivalent Rights financial
"The dividend equivalent rights ("DERs") accrued with respect to additional time-based restricted stock units"
Dividend equivalent rights are promises that mirror the cash payments shareholders get from a company’s profits, but they are paid to holders of certain awards (like stock options or restricted stock units) rather than to actual shares. Think of them as a paycheck top‑up that matches dividends while the award is not yet a real stock, and they matter to investors because they add to employee compensation costs and potential share dilution, affecting company profitability and per‑share value.
restricted stock units financial
"additional time-based restricted stock units ("RSUs") credited to the reporting person with respect to deferred compensation"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
deferred compensation financial
"RSUs credited to the reporting person with respect to deferred compensation"
Deferred compensation is pay that employees or executives have earned now but will receive at a later date, such as delayed bonuses, retirement benefits, or stock grants. It matters to investors because it creates future obligations and shapes incentives—like a promise to pay later that can affect a company’s reported profits, cash needs and potential stock dilution—so it helps signal how a business manages costs and retains key people.
Director Deferred Compensation Plan financial
"subject to the Koppers Holdings Inc. Director Deferred Compensation Plan (the "Plan")"
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SEC Form 4
FORM 4UNITED 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 PENNSYLVANIA 15219

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Koppers Holdings Inc. [ KOP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Dividend Equivalent Rights(1)06/15/2026A30.347 (2) (2)Common Stock30.347$0355.85D
Explanation of Responses:
1. 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.
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.
Remarks:
/s/ Stephanie L. Apostolou, Attorney in Fact06/17/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Koppers (KOP) report for Sonja Michelle Wilkerson?

Koppers reported that director Sonja Michelle Wilkerson received 30.347 Dividend Equivalent Rights, a form of stock-based compensation. Each right equals one Koppers common share economically, increasing her total Dividend Equivalent Rights holdings to 355.850 after this award.

What are Dividend Equivalent Rights in the Koppers (KOP) Form 4 filing?

Dividend Equivalent Rights are compensation instruments that mirror the value of Koppers common stock dividends. In this filing, each right is the economic equivalent of one share, accruing on time-based restricted stock units credited under the director deferred compensation arrangement.

How many Dividend Equivalent Rights does the Koppers (KOP) director hold after the grant?

After the grant, director Sonja Michelle Wilkerson holds 355.850 Dividend Equivalent Rights. This total includes the newly awarded 30.347 rights that accrued on additional time-based restricted stock units tied to her deferred compensation under the company’s director plan.

When will the restricted stock units linked to these Koppers (KOP) Dividend Equivalent Rights be paid?

The restricted stock units tied to these Dividend Equivalent Rights will be paid based on Wilkerson’s prior elections, either in a lump sum or annual installments, starting on the May 31 following her separation from service or a later May 31 date she previously selected.

Is the Koppers (KOP) Form 4 transaction a market buy or sell of shares?

No, this Form 4 does not show a market buy or sell. It reports a compensation-related award of 30.347 Dividend Equivalent Rights at a stated price of 0.0000 per unit, reflecting non-cash deferred compensation rather than an open-market stock transaction.