Option exercise and tax-share withholding by Koppers (NYSE: KOP) CEO

Rhea-AI Filing Summary

Koppers Holdings Inc. CEO Leroy M. Ball, who is also a director, reported option and stock transactions dated February 10, 2026. He exercised 30,000 employee stock options at an exercise price of $18.11 per share, receiving an equivalent number of common shares.

To cover the exercise price or related tax liability, 22,241 common shares were disposed of in a transaction coded "F" at $33.20 per share. Following these transactions, Ball directly beneficially owned 419,098.4007 shares of Koppers common stock.

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

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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^*

BALL M LEROY

(Last) (First) (Middle)

436 SEVENTH AVENUE

(Street)

PITTSBURGH PA 15219

(City) (State) (Zip)

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
X	Officer (give title below)		Other (specify below)
	CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/10/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/10/2026		M		30,000	A	$18.11	441,339.4007	D
Common Stock	02/10/2026		F		22,241	D	$33.2	419,098.4007	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
Emplooyee Stoock Options (Rights to Buy)	$18.11	02/10/2026		M			30,000	03/01/2017(1)	03/01/2026	Common Stock	30,000	$0	30,728	D

Explanation of Responses:

1. Stock options vested in annual installments of 25 percent over 4 years.

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	02/12/2026
	** 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.
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FAQ

What insider transaction did Koppers (KOP) CEO report on February 10, 2026?

Koppers CEO Leroy M. Ball exercised 30,000 employee stock options on February 10, 2026, at an exercise price of $18.11 per share. This option exercise converted derivative securities into common stock as part of his equity compensation arrangements with the company.

How many Koppers (KOP) shares were disposed of for taxes or exercise costs?

A total of 22,241 Koppers common shares were disposed of in a transaction coded "F" at $33.20 per share. This code indicates shares were used to pay the option exercise price or related tax liability, rather than an open-market discretionary sale.

How many Koppers (KOP) shares does the CEO own after these Form 4 transactions?

After the reported transactions, CEO Leroy M. Ball directly beneficially owned 419,098.4007 Koppers common shares. This figure reflects the net result of the 30,000-share option exercise and the 22,241-share disposition related to covering the exercise price or taxes.

What type of derivative security did the Koppers (KOP) CEO exercise?

The CEO exercised employee stock options described as "Employee Stock Options (Rights to Buy)" with an exercise price of $18.11 per share. These options were originally granted on March 1, 2017 and vested in annual 25 percent installments over four years.

Is the Koppers (KOP) CEO’s Form 4 transaction a market purchase or sale?

The filing shows an option exercise and a tax-related share disposition, not a standard market trade. The 30,000 options were exercised (code "M"), and 22,241 shares were used to satisfy the exercise price or tax obligations (code "F"), rather than an open-market sale.