Koppers (NYSE: KOP) director adds dividend equivalent rights under deferred plan

Rhea-AI Filing Summary

Koppers Holdings Inc. reported an insider equity transaction by one of its directors involving dividend equivalent rights tied to deferred compensation. On 12/16/2025, the director acquired 33.442 dividend equivalent rights, each economically equivalent to one share of Koppers common stock, bringing the director’s total derivative holdings to 297.916 such rights held directly.

The dividend equivalent rights accrued in connection with additional restricted stock units credited under the Koppers Holdings Inc. Director Deferred Compensation Plan. Once the related restricted stock units are released, they will be paid according to the director’s prior election, either in a lump sum or in annual installments beginning on May 31 following separation from service or a later May 31 chosen 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

OMB Number:			3235-0287
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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 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)
12/16/2025

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)	12/16/2025		A		33.442		(2)	(2)	Common Stock	33.442	$0	297.916	D

Explanation of Responses:

1. The dividend equivalent rights ("DERs") accrued with respect to additional 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 Fact	12/17/2025
	** 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 insider transaction was reported for Koppers Holdings Inc. (KOP)?

A director of Koppers Holdings Inc. reported acquiring 33.442 dividend equivalent rights on 12/16/2025, all held as a direct ownership position.

What are dividend equivalent rights (DERs) in this KOP Form 4?

The filing states that each dividend equivalent right (DER) is the economic equivalent of one share of Koppers Holdings Inc. common stock, linked to restricted stock units credited as deferred compensation.

How many derivative securities does the KOP director hold after this transaction?

Following the reported transaction, the director beneficially owns 297.916 dividend equivalent rights as derivative securities, held directly.

How do the KOP director’s dividend equivalent rights relate to restricted stock units (RSUs)?

The dividend equivalent rights accrued with respect to additional restricted stock units (RSUs) credited to the director under a deferred compensation arrangement, with each DER tied to one share of common stock.

When will the RSUs related to these KOP dividend equivalent rights be paid?

The filing explains that once released, the RSUs corresponding to these DERs will be paid under the Director Deferred Compensation Plan either in a lump sum or in annual installments starting on May 31 following the director’s separation from service, or on a later May 31 selected under the plan.

What plan governs this Koppers (KOP) director’s deferred equity compensation?

The director’s RSUs and related dividend equivalent rights are subject to the Koppers Holdings Inc. Director Deferred Compensation Plan, which allows the director to elect timing and form of payment.