Koppers (KOP) CEO M. Leroy Ball sells 2,489 shares and gifts 1,200

Rhea-AI Filing Summary

Koppers Holdings Inc. CEO M. Leroy Ball reported share disposals in Common Stock. On March 17, 2026, he completed an open-market sale of 2,489 shares at $37.91 per share, leaving 447,459.4007 shares directly owned afterward.

On the same date, he also made a bona fide gift transfer of 1,200 shares, with his direct holdings reported at 446,259.4007 shares following the gift. These transactions reduce his position by a small portion while he continues to hold a substantial direct stake in the company.

Insights

Equity compensation and insider-trading analyst

CEO’s sale and gift are small relative to his remaining stake.

CEO M. Leroy Ball executed an open-market sale of 2,489 Koppers Holdings common shares at $37.91 on March 17, 2026, followed by a bona fide gift of 1,200 shares. No derivatives were exercised, and pricing indicates a straightforward secondary-market transaction.

After these moves, his reported direct holdings remain sizable at 446,259.4007 shares. The mix of a modest sale and a gift, with no 10b5-1 or structural footnote disclosures, appears routine and does not materially alter his visible ownership or the broader investment picture.

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^*

BALL M LEROY

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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	03/17/2026		S		2,489	D	$37.91	447,459.4007	D
Common Stock	03/17/2026		G		1,200	D	$0	446,259.4007	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

Explanation of Responses:

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	03/18/2026
	** 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)

FAQ

What insider transactions did Koppers (KOP) CEO M. Leroy Ball report?

M. Leroy Ball reported two transactions: an open-market sale of 2,489 Koppers common shares at $37.91 per share and a bona fide gift transfer of 1,200 shares, both dated March 17, 2026, affecting only a small portion of his holdings.

How many Koppers (KOP) shares did the CEO sell and at what price?

The CEO sold 2,489 shares of Koppers common stock in an open-market transaction at a price of $37.91 per share. This reported sale occurred on March 17, 2026 and was classified as a standard non-derivative transaction under the Form 4 filing.

Did the Koppers (KOP) CEO make any share gifts in this Form 4?

Yes. M. Leroy Ball reported a bona fide gift of 1,200 Koppers common shares. The gift was recorded as a non-derivative disposition with a zero-dollar per-share value on March 17, 2026, reflecting a transfer rather than any market sale activity.

What are M. Leroy Ball’s Koppers (KOP) share holdings after these transactions?

After the open-market sale, his direct ownership was reported at 447,459.4007 shares. Following the subsequent 1,200-share gift, his direct holdings stood at 446,259.4007 shares, indicating that he continues to maintain a substantial ownership position in Koppers Holdings Inc.

Were any stock options or derivatives exercised in the Koppers (KOP) CEO’s Form 4?

No derivative securities were reported as exercised or converted in this Form 4. All disclosed activity involved non-derivative Koppers common stock, consisting solely of an open-market sale and a separate bona fide gift transfer, with no option or warrant exercises listed.

Does the Koppers (KOP) Form 4 indicate a major change in insider ownership?

The filing reflects relatively small transactions compared to the CEO’s remaining stake. He sold 2,489 shares and gifted 1,200 shares but still directly holds 446,259.4007 shares, suggesting these moves do not represent a major shift in his overall ownership level.