Koppers (KOP) director receives new dividend equivalent rights awards

Rhea-AI Filing Summary

Feng Xudong reported acquisition or exercise transactions in this Form 4 filing.

Koppers Holdings Inc. director Xudong Feng received awards of dividend equivalent rights tied to existing restricted stock units and deferred compensation. On March 23, 2026, he was granted 50.0000 dividend equivalent rights and an additional 29.9100 rights, bringing his reported balance to 377.8260 such rights.

Each dividend equivalent right is described as the economic equivalent of one share of Koppers common stock and is linked to time-based restricted stock units or deferred compensation. Once released, the related restricted stock units will be paid in a lump sum or installments under the company’s Director Deferred Compensation Plan, generally beginning after separation from service or on a later May 31 date elected under the plan.

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

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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^*

Feng Xudong

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			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)	03/23/2026		A		50		(2)	(2)	Common Stock	50	$0	347.916	D
Dividend Equivalent Rights	(3)	03/23/2026		A		29.91		(2)	(2)	Common Stock	29.91	$0	377.826	D

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 RSUs granted on May 8, 2025. 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. The DERs accrued with respect to additional 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.

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	03/25/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Koppers (KOP) director Xudong Feng report?

Director Xudong Feng reported acquiring dividend equivalent rights tied to existing awards. On March 23, 2026, he received grants of 50.0000 and 29.9100 dividend equivalent rights, compensation instruments linked to Koppers common stock rather than open-market purchases.

How many dividend equivalent rights does Xudong Feng now hold at Koppers (KOP)?

After the reported grants, Xudong Feng’s balance of dividend equivalent rights increased to 377.8260. These rights track the value of Koppers common stock and accumulate alongside time-based restricted stock units and deferred compensation credited to him as a director.

What are dividend equivalent rights in the Koppers (KOP) Form 4 filing?

The filing states each dividend equivalent right is the economic equivalent of one share of Koppers common stock. They accrue on additional restricted stock units and deferred compensation, allowing the director to mirror stock-based value without an immediate share issuance.

How will the Koppers (KOP) director’s RSUs linked to these DERs be paid?

The related RSUs will be paid under the Koppers Holdings Inc. Director Deferred Compensation Plan. Payment will occur in a lump sum or annual installments starting on May 31 after separation from service, or a later May 31 date the director previously elected.

Is the Koppers (KOP) Form 4 transaction an open-market stock purchase or sale?

No, the Form 4 shows grant/award acquisitions of dividend equivalent rights, not open-market trades. The awards are compensation-related derivatives linked to restricted stock units and deferred compensation rather than discretionary buying or selling of common shares.