Koppers plans potential sale of 80,000 common shares

Koppers Holdings Inc. (KOP) filed to permit the sale of 80,000 shares of common stock through Fidelity Brokerage Services LLC on or after August 7, 2026 on the NYSE.

Rhea-AI Filing Summary

Koppers Holdings Inc. (KOP) filed to permit the sale of 80,000 shares of common stock through Fidelity Brokerage Services LLC on or after August 7, 2026 on the NYSE. The filing lists an aggregate market value of approximately $4,000,668.23 for these shares and notes 18,911,568 shares of common stock outstanding.

The seller’s position was built over time through multiple restricted stock vesting events, employee stock purchase plan (ESPP) purchases, and a stock option exercise, spanning dates from 2017 through 2025. These historical acquisitions are summarized to support the availability of shares for the planned sale.

Key Figures

Shares to be sold: 80,000 shares Aggregate market value: $4,000,668.23 Shares outstanding: 18,911,568 shares +4 more

7 metrics

Shares to be sold 80,000 shares Common stock proposed for sale under Rule 144

Aggregate market value $4,000,668.23 Approximate value of 80,000 shares to be sold

Shares outstanding 18,911,568 shares Common stock outstanding as referenced in the filing

Planned sale date 08/07/2026 Earliest date for proposed NYSE sales

Restricted stock vesting (largest single entry) 16,316 shares Restricted stock vesting on 01/05/2025

ESPP purchase example 500 shares ESPP purchase on 12/29/2017

Stock option exercise example 5,893 shares Stock option exercise on 12/05/2023

Key Terms

Form 144, Restricted Stock Vesting, ESPP Purchase, Stock Option Exercise, +1 more

5 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Common | 03/01/2024 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

ESPP Purchase financial

"Common | 12/29/2017 | ESPP Purchase | Issuer"

Stock Option Exercise financial

"Common | 12/05/2023 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

FAQ

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

What does the Form 144 filing by Koppers Holdings Inc. (KOP) disclose?

Koppers Holdings Inc. reports a planned sale of 80,000 common shares under Rule 144. The shares, valued at about $4,000,668.23, may be sold on or after August 7, 2026 on the NYSE through Fidelity Brokerage Services LLC.

How many KOP shares are outstanding according to this Form 144?

The Form 144 states that 18,911,568 shares of Koppers Holdings Inc. common stock are outstanding. This figure provides context for the planned sale of 80,000 shares under Rule 144, helping investors gauge the relative size of the potential transaction.

What is the approximate market value of the KOP shares to be sold under this Form 144?

The filing lists an aggregate market value of about $4,000,668.23 for the 80,000 Koppers (KOP) shares proposed for sale. This valuation helps illustrate the dollar scale of the potential disposition relative to the company’s common equity.

On which exchange and through which broker may the KOP Form 144 shares be sold?

The Form 144 indicates the 80,000 KOP shares may be sold on the NYSE through Fidelity Brokerage Services LLC. This specifies both the intended trading market and the brokerage firm involved in executing the potential sales.

How were the KOP shares accumulated that are referenced in the Form 144?

The filing traces share accumulation to multiple restricted stock vesting events, ESPP purchases, and at least one stock option exercise between 2017 and 2025. These transactions build the share base that could be sold under Rule 144.

Does the KOP Form 144 guarantee that the 80,000 shares will be sold?

No. Form 144 indicates an intention to sell up to 80,000 shares under Rule 144, but it does not ensure execution. Actual sales depend on market conditions, trading decisions, and compliance with Rule 144 requirements at the time of sale.

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

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Available on EDGAR 08/07/2026 - 04:53 PM Accepted by SEC EDGAR 08/07/2026 - 04:53 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001450800
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Koppers Holdings Inc.
SEC File Number	001-32737
Address of Issuer	436 SEVENTH AVENUE PITTSBURGH PENNSYLVANIA 15219
Phone	412-227-2001
Name of Person for Whose Account the Securities are To Be Sold	Sullivan James A.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	80000	4000668.23	18911568	08/07/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/01/2024	Restricted Stock Vesting	Issuer			1485	03/01/2024	Compensation
Common	01/05/2024	Restricted Stock Vesting	Issuer			14144	01/05/2024	Compensation
Common	03/01/2017	Restricted Stock Vesting	Issuer			773	03/01/2017	Compensation
Common	12/05/2023	Stock Option Exercise	Issuer			5893	12/05/2023	Cash
Common	03/07/2017	Restricted Stock Vesting	Issuer			764	03/07/2017	Compensation
Common	02/17/2017	Restricted Stock Vesting	Issuer			1483	02/17/2017	Compensation
Common	03/02/2018	Restricted Stock Vesting	Issuer			14257	03/02/2018	Compensation
Common	12/29/2017	ESPP Purchase	Issuer			500	12/29/2017	Cash
Common	03/03/2023	Restricted Stock Vesting	Issuer			1488	03/03/2023	Compensation
Common	03/03/2021	Restricted Stock Vesting	Issuer			1728	03/03/2021	Compensation
Common	03/06/2023	Restricted Stock Vesting	Issuer			686	03/06/2023	Compensation
Common	03/05/2021	Restricted Stock Vesting	Issuer			677	03/05/2021	Compensation
Common	03/29/2018	ESPP Purchase	Issuer			147	03/29/2018	Cash
Common	03/02/2021	Restricted Stock Vesting	Issuer			411	03/02/2021	Compensation
Common	01/05/2022	Restricted Stock Vesting	Issuer			1104	01/05/2022	Compensation
Common	06/29/2018	ESPP Purchase	Issuer			162	06/29/2018	Cash
Common	01/03/2025	Restricted Stock Vesting	Issuer			951	01/03/2025	Compensation
Common	01/05/2025	Restricted Stock Vesting	Issuer			16316	01/05/2025	Compensation
Common	03/03/2022	Restricted Stock Vesting	Issuer			1495	03/03/2022	Compensation
Common	01/05/2023	Restricted Stock Vesting	Issuer			1944	01/05/2023	Compensation
Common	03/02/2022	Restricted Stock Vesting	Issuer			467	03/02/2022	Compensation
Common	03/04/2022	Restricted Stock Vesting	Issuer			12261	03/04/2022	Compensation
Common	09/28/2018	ESPP Purchase	Issuer			175	09/28/2018	Cash
Common	03/01/2019	Restricted Stock Vesting	Issuer			689	03/01/2019	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/07/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for James Sullivan.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)