Koppers CFO receives 6,620-share equity grant

Brenner Eric D. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Brenner Eric D. reported acquisition or exercise transactions in this Form 4 filing.

Koppers Holdings Inc. reported that its CFO and Treasurer, Eric D. Brenner, received a grant of 6,620 shares of common stock as an equity award. These are time-based restricted stock units awarded on May 26, 2026, vesting in four equal annual installments beginning on January 5, 2027. Following this compensation-related award, his directly held common stock position reported in this filing is 6,620 shares.

Insider Trade Summary

Grant/Award: 6,620 shares

Grant/Award 1 txn

Insider Brenner Eric D.

Role CFO and Treasurer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	6,620	$0.00	$0.00

Holdings After Transaction: Common Stock — 6,620 shares (Direct)

Footnotes (1)

1. F1. The reporting person was awarded time-based restricted stock units on May 26, 2026, which will vest in four annual installments of 25 percent beginning January 5, 2027.

Key Figures

Shares granted: 6,620 shares Grant price per share: $0.00 per share Holdings after transaction: 6,620 shares +1 more

4 metrics

Shares granted 6,620 shares Equity award of common stock on May 26, 2026

Grant price per share $0.00 per share Compensation-related award, not market purchase

Holdings after transaction 6,620 shares Directly owned common stock following the grant

Vesting schedule 4 installments of 25% Annual vesting beginning January 5, 2027

Key Terms

restricted stock units, time-based, vest

3 terms

restricted stock units financial

"The reporting person was awarded time-based restricted stock units on May 26, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

time-based financial

"The reporting person was awarded time-based restricted stock units on May 26, 2026"

vest financial

"which will vest in four annual installments of 25 percent beginning January 5, 2027"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

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

What insider transaction did Koppers (KOP) report for Eric D. Brenner?

Koppers reported that CFO and Treasurer Eric D. Brenner received an equity grant of 6,620 shares of common stock. The award is compensation-related, recorded at zero purchase price, and reflects a grant rather than an open-market share purchase or sale.

How many Koppers (KOP) shares were granted to the CFO in this Form 4?

The Form 4 shows a grant of 6,620 shares of Koppers common stock to the CFO. These shares are structured as time-based restricted stock units that vest over several years, rather than an immediate, fully vested stock position on the grant date.

What is the vesting schedule for the Koppers (KOP) restricted stock units granted on May 26, 2026?

The restricted stock units awarded on May 26, 2026 will vest in four annual installments of 25 percent. Vesting begins on January 5, 2027, meaning 25% of the units vest each year over four years, subject to the grant’s continued-service conditions.

Did the Koppers (KOP) CFO buy or sell shares on the market in this filing?

The filing reports a grant of shares to the CFO, not a market transaction. Code “A” indicates an award or other acquisition, with a price per share of $0.00, so it reflects equity compensation rather than a discretionary market buy or sale.

What are the CFO’s reported Koppers (KOP) holdings after this Form 4 transaction?

After the reported grant, the Form 4 lists the CFO’s directly owned common stock holdings at 6,620 shares. This figure reflects the position immediately following the equity award and provides context for the scale of this compensation-related transaction.

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

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Accepted by SEC EDGAR 05/27/2026 - 04:08 PM EDT 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^*

Brenner Eric D.

(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)
	CFO and Treasurer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

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(1)	05/26/2026		A		6,620	A	$0	6,620	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 reporting person was awarded time-based restricted stock units on May 26, 2026, which will vest in four annual installments of 25 percent beginning January 5, 2027.

Remarks:

	/s/ Stephanie L. Apostolou, Attorney in Fact	05/27/2026
	** 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)