Koppers director granted 13.52 dividend rights

Koppers Holdings Inc. (KOP) director Andrew D. Sandifer reported an acquisition of 13.5200 Dividend Equivalent Rights (DERs) on September 14, 2026, tied to deferred compensation restricted stock units (RSUs).

Rhea-AI Filing Summary

Koppers Holdings Inc. (KOP) director Andrew D. Sandifer reported an acquisition of 13.5200 Dividend Equivalent Rights (DERs) on September 14, 2026, tied to deferred compensation restricted stock units (RSUs). Following this grant, he holds 116.8310 DERs, each economically equivalent to one share of Koppers common stock.

The related RSUs will be paid in a lump sum or annual installments according to Sandifer’s prior elections under the Koppers Holdings Inc. Director Deferred Compensation Plan, generally commencing on the May 31 following his separation from service or a later elected May 31. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Grant/Award: 13.52 shares

Grant/Award 1 txn

Insider Sandifer Andrew D

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Dividend Equivalent Rights F1, F2	13.52	$0.00	$0.00

Holdings After Transaction: Dividend Equivalent Rights — 116.831 contracts (Direct)

Footnotes (2)

1. F1. 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. F2. 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.

Key Figures

Dividend Equivalent Rights acquired: 13.5200 DERs Dividend Equivalent Rights after transaction: 116.8310 DERs Price per Dividend Equivalent Right: $0.0000 +1 more

4 metrics

Dividend Equivalent Rights acquired 13.5200 DERs Grant to director Andrew D. Sandifer on September 14, 2026

Dividend Equivalent Rights after transaction 116.8310 DERs Total DER holdings following the reported acquisition

Price per Dividend Equivalent Right $0.0000 Reported transaction price per DER for the September 14, 2026 grant

Underlying common shares for new DERs 13.5200 shares Each DER is economically equivalent to one share of Koppers common stock

Key Terms

Dividend Equivalent Rights, restricted stock units, Director Deferred Compensation Plan, separation from service

4 terms

Dividend Equivalent Rights financial

"The dividend equivalent rights ("DERs") accrued with respect to additional 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

"DERs accrued with respect to additional restricted stock units ("RSUs") credited"

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.

Director Deferred Compensation Plan financial

"subject to the Koppers Holdings Inc. Director Deferred Compensation Plan (the "Plan")"

separation from service financial

"commencing on the May 31st next following the reporting person's separation from service"

FAQ

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

What did KOP director Andrew D. Sandifer report in this Form 4?

He reported an acquisition of 13.5200 Dividend Equivalent Rights (DERs) on September 14, 2026, linked to deferred compensation RSUs, bringing his total DER holdings to 116.8310.

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

Dividend Equivalent Rights (DERs) are amounts that accrued with respect to additional restricted stock units credited for deferred compensation. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock.

How many DERs does Andrew D. Sandifer hold in KOP after this transaction?

After the September 14, 2026 acquisition, Andrew D. Sandifer holds 116.8310 Dividend Equivalent Rights, each economically equivalent to one share of Koppers Holdings Inc. common stock.

When will the RSUs corresponding to these KOP DERs be paid?

Once released, the RSUs will become payable under the Director Deferred Compensation Plan either in a lump sum or annual installments, generally starting on the May 31 following separation from service or on a later May 31 elected by the director.

Was this KOP Form 4 transaction made under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is not affirmed, and no footnote states that the September 14, 2026 DER grant was made pursuant to a Rule 10b5-1 trading plan.

Do these KOP DERs involve an immediate cash transaction or share sale?

The reported DER acquisition lists a $0.0000 price per right and reflects a grant/award of derivative-based compensation rather than a market purchase or sale of Koppers common stock.

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

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Available on EDGAR 09/15/2026 - 04:16 PM Accepted by SEC EDGAR 09/15/2026 - 04:15 PM 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^*

Sandifer Andrew D

(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)
09/14/2026

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)	09/14/2026		A		13.52		(2)	(2)	Common Stock	13.52	$0	116.831	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	09/15/2026
	** 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)