Koppers executive sells 7,500 shares at $50

Koppers Holdings Inc. President and CTO James A. Sullivan reported a sale of 7,500 shares of Common Stock on August 11, 2026, in a transaction classified as a sale in open market or private transaction at $50.00 per share.

Rhea-AI Filing Summary

Koppers Holdings Inc. President and CTO James A. Sullivan reported a sale of 7,500 shares of Common Stock on August 11, 2026, in a transaction classified as a sale in open market or private transaction at $50.00 per share. Following this sale, Sullivan directly holds 82,897.738 shares of Koppers Holdings Inc. Common Stock.

Insider Trade Summary

Net Seller: 7,500 shares

Net Sell 1 txn

Insider Sullivan James A.

Role President and CTO

Sold 7,500 shs ($375K)

Type	Security	Shares	Price	Value
Sale	Common Stock	7,500	$50.00	$375K

Holdings After Transaction: Common Stock — 82,897.738 shares (Direct)

Key Figures

Shares sold: 7,500 shares Sale price per share: $50.00 per share Shares owned after transaction: 82,897.738 shares

3 metrics

Shares sold 7,500 shares Common Stock sale on August 11, 2026

Sale price per share $50.00 per share Sale in open market or private transaction

Shares owned after transaction 82,897.738 shares Directly held Common Stock following the sale

Key Terms

sale in open market or private transaction, direct ownership, Form 4

3 terms

sale in open market or private transaction financial

"Transaction code description: sale in open market or private transaction"

direct ownership financial

"Ownership type for these shares is reported as direct ownership"

Form 4 financial

"Executive stock transaction reported on SEC Form 4"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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

What did Koppers (KOP) President and CTO James A. Sullivan report on this Form 4?

James A. Sullivan reported a sale of 7,500 shares of Koppers Holdings Inc. Common Stock on August 11, 2026. The transaction was classified as a sale in open market or private transaction at $50.00 per share.

How many Koppers (KOP) shares did James A. Sullivan sell and at what price?

James A. Sullivan sold 7,500 shares of Koppers Holdings Inc. Common Stock at $50.00 per share. The transaction is coded as a sale in open market or private transaction in the Form 4 filing.

What are James A. Sullivan’s Koppers (KOP) holdings after this reported sale?

After the reported transaction, James A. Sullivan directly holds 82,897.738 shares of Koppers Holdings Inc. Common Stock. This post-transaction balance reflects his remaining direct ownership following the sale of 7,500 shares.

Was the Koppers (KOP) insider sale made under a Rule 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not marked, and there are no footnotes stating the sale was made under a trading plan. The transaction is simply coded as a sale in open market or private transaction.

What is the net effect of this Form 4 transaction for Koppers (KOP) insider activity?

The filing shows a net sale of 7,500 shares by James A. Sullivan, with no reported purchases or option exercises. Transaction summary data describes the direction as net-sell based on the reported activity.

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

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Available on EDGAR 08/12/2026 - 06:30 PM Accepted by SEC EDGAR 08/12/2026 - 06:29 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^*

Sullivan James A.

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026

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
Common Stock	08/11/2026		S		7,500	D	$50	82,897.738	D

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

Explanation of Responses:

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	08/12/2026
	** 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)