Koppers Holdings (KOP) President and CTO Sullivan sells 80,000 company shares

Rhea-AI Filing Summary

Koppers Holdings Inc. President and CTO James A. Sullivan reported selling a total of 80,000 shares of common stock on August 7, 2026. The sale included 79,900 shares at a weighted average price of $50.01 per share in multiple trades ranging from $50.00 to $50.28, and an additional 100 shares at $51.22 per share in a separate open-market or private transaction.

Insider Trade Summary

Net Seller: 80,000 shares

Net Sell 2 txns

Insider Sullivan James A.

Role President and CTO

Sold 80,000 shs ($4.00M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	79,900	$50.01	$4.00M
Sale	Common Stock	100	$51.22	$5K

Holdings After Transaction: Common Stock — 90,397.738 shares (Direct)

Footnotes (1)

1. F1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.00 to $50.28, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

Key Figures

Total shares sold: 80,000 shares Weighted average sale price: $50.01 per share Additional sale price: $51.22 per share +2 more

5 metrics

Total shares sold 80,000 shares Aggregate common stock sales reported on August 7, 2026

Weighted average sale price $50.01 per share For 79,900 shares sold in multiple trades ranging from $50.00 to $50.28

Additional sale price $51.22 per share Price for a separate sale of 100 common shares on August 7, 2026

Shares in weighted-average block 79,900 shares Common stock sold at weighted average price of $50.01

Price range of weighted-average trades $50.00–$50.28 per share Range of prices for the 79,900-share sale block

Key Terms

weighted average price, open market or private transaction, direct or indirect ownership

3 terms

weighted average price financial

"The price reported in column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"Sale in open market or private transaction"

direct or indirect ownership financial

"direct_or_indirect uses D/I for Direct/Indirect ownership type"

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/11/2026 - 04:22 PM Accepted by SEC EDGAR 08/11/2026 - 04:21 PM Learn about SEC filing dates

FAQ

What insider transaction did Koppers Holdings Inc. (KOP) report for James A. Sullivan?

Koppers President and CTO James A. Sullivan reported selling a total of 80,000 shares of common stock on August 7, 2026. The transactions were reported as open-market or private sales.

How many KOP shares did James A. Sullivan sell on August 7, 2026 and at what prices?

James A. Sullivan sold 80,000 Koppers (KOP) shares on August 7, 2026. He sold 79,900 shares at a $50.01 weighted average (range $50.00–$50.28) and 100 shares at $51.22 per share.

What does the weighted average price disclosure mean in the KOP Form 4?

The filing states the $50.01 price is a weighted average for multiple trades between $50.00 and $50.28. The reporting person will provide details on the number of shares sold at each price upon request.

Were James A. Sullivan’s KOP stock sales under a Rule 10b5-1 trading plan?

The Rule 10b5-1 checkbox is not marked as affirming a trading plan, and no footnote describes a plan. The transactions are characterized simply as open-market or private sales.

Is the ownership type for James A. Sullivan’s KOP share sales direct or indirect?

Both reported transactions list ownership as direct, indicated by code “D”. No footnotes re-attribute the shares to a trust, LLC, or other indirect entity in this Form 4.

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)
08/07/2026

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	08/07/2026		S		79,900	D	$50.01(1)	90,497.738	D
Common Stock	08/07/2026		S		100	D	$51.22	90,397.738	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:

1. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.00 to $50.28, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	08/11/2026
	** 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)