Koppers SVP Lucas sells 1,308 shares of stock

Koppers Holdings Inc. senior vice president Stephen G. Lucas reported a sale of common stock.

Rhea-AI Filing Summary

Koppers Holdings Inc. senior vice president Stephen G. Lucas reported a sale of common stock. On 2026-08-12, he sold 1,308 shares in an open-market or private transaction at a weighted average price of $44.55 per share, with individual trade prices ranging from $44.52 to $44.59. Following this transaction, he directly holds 34,345 common shares of Koppers.

Insider Trade Summary

Net Seller: 1,308 shares

Net Sell 1 txn

Insider Lucas Stephen G

Role SVP, Culture and Engagement

Sold 1,308 shs ($58K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	1,308	$44.55	$58K

Holdings After Transaction: Common Stock — 34,345 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 $44.52 to $44.59, 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

Shares sold: 1,308 shares Weighted average sale price: $44.55 per share Price range of sales: $44.52 to $44.59 per share +1 more

4 metrics

Shares sold 1,308 shares Common stock sale on 2026-08-12 by SVP Stephen G. Lucas

Weighted average sale price $44.55 per share Weighted average price for the 1,308 shares sold

Price range of sales $44.52 to $44.59 per share Range of individual transaction prices for the reported sale

Shares owned after transaction 34,345 shares Direct holdings of Stephen G. Lucas following the sale

Key Terms

weighted average price, open market or private transaction, Form 4

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

"Transaction code S described as Sale in open market or private transaction."

Form 4 regulatory

"Insider selling reported on Form 4 for Koppers Holdings Inc."

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 insider transaction did Koppers Holdings (KOP) report for Stephen G. Lucas?

Koppers reported that SVP Stephen G. Lucas sold 1,308 shares of common stock on 2026-08-12. The transaction was coded as a sale in an open-market or private transaction, according to the Form 4 filing.

At what price did the Koppers (KOP) insider shares sell in the latest Form 4?

The reported shares sold at a weighted average price of $44.55 per share. Individual trades occurred at prices ranging from $44.52 to $44.59, as detailed in the Form 4 footnote.

How many Koppers (KOP) shares does Stephen G. Lucas hold after this Form 4 sale?

After selling 1,308 shares, Stephen G. Lucas directly owns 34,345 shares of Koppers common stock. This post-transaction holding figure is explicitly stated in the Form 4 data.

What role does the reporting person hold at Koppers (KOP) in this Form 4?

The reporting person, Stephen G. Lucas, serves as SVP, Culture and Engagement at Koppers Holdings Inc. His status as an officer is identified in the Form 4 reporting details.

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

The filing indicates the Rule 10b5-1 checkbox is not affirmed. There is no footnote stating the sale was made pursuant to a Rule 10b5-1 trading plan in this Form 4.

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

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Available on EDGAR 08/13/2026 - 05:11 PM Accepted by SEC EDGAR 08/13/2026 - 05:11 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^*

Lucas Stephen G

(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)
	SVP, Culture and Engagement

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2026

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	08/12/2026		S		1,308	D	$44.55(1)	34,345	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 $44.52 to $44.59, 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	08/13/2026
	** 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)