Koppers director granted 50 dividend equivalent rights

Vartanian Nishan J. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Vartanian Nishan J. reported acquisition or exercise transactions in this Form 4 filing.

Koppers Holdings Inc. director Nishan J. Vartanian received a grant of 50 Dividend Equivalent Rights on common stock. These rights were awarded as a derivative, compensation-related grant and are the economic equivalent of 50 shares of Koppers common stock tied to prior RSU awards.

Insider Trade Summary

Grant/Award: 50 shares

Grant/Award 1 txn

Insider Vartanian Nishan J.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights	50	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 50 contracts (Direct)

Footnotes (1)

1. 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 RSUs granted on May 8, 2025. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Koppers (KOP) report for Nishan J. Vartanian?

Koppers reported that director Nishan J. Vartanian received 50 Dividend Equivalent Rights as a compensation-related grant. These derivative rights are tied to existing restricted stock units and are economically equivalent to 50 shares of Koppers common stock.

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

Dividend Equivalent Rights are derivative awards that mirror the value of common stock dividends. In this case, each of the 50 rights is the economic equivalent of one Koppers common share, accruing with respect to existing time-based restricted stock units held by the director.

Did the Koppers (KOP) Form 4 show a stock purchase or sale?

The Form 4 did not show a market purchase or sale. It reported an acquisition coded as a grant of 50 Dividend Equivalent Rights, a compensation-related award rather than an open-market transaction in Koppers common stock by the director.

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

Following the reported transaction, the director holds 50 Dividend Equivalent Rights. The Form 4 shows these derivative awards as directly owned and economically equivalent to 50 shares of Koppers Holdings Inc. common stock tied to prior RSU grants.

What RSU grant are the Koppers (KOP) Dividend Equivalent Rights tied to?

The Dividend Equivalent Rights accrued with respect to additional time-based restricted stock units credited in connection with RSUs granted on May 8, 2025. Each right reflects the economic value of one share of Koppers common stock linked to those RSU awards.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/25/2026 - 04:18 PM EDT Learn about SEC filing dates

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^*

Vartanian Nishan J.

(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		(1)	(1)	Common Stock	50	$0	50	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.

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)