Welcome to our dedicated page for Koppers Hldgs SEC filings (Ticker: KOP), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Koppers Holdings Inc. (NYSE: KOP) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as a Pennsylvania corporation listed on the New York Stock Exchange. Koppers files periodic and current reports that describe its operations as an integrated global provider of treated wood products, wood preservation technologies and carbon compounds, along with details of its financial condition and governance.
Through Forms 8-K, Koppers reports material events such as quarterly and interim financial results, workforce reduction programs, Board of Directors changes and executive transitions. For example, recent 8-K filings have addressed second and third quarter results, amendments related to cost estimates for a workforce reduction program, the election of a new director, and the retirement of the Chief Financial Officer with the appointment of an interim Chief Financial Officer and Chief Accounting Officer.
Investors can also use KOP filings to confirm the company’s exchange listing, state of incorporation and capital structure information. Where available, annual reports on Form 10-K and quarterly reports on Form 10-Q provide segment data for Railroad and Utility Products and Services, Performance Chemicals, and Carbon Materials and Chemicals, as well as discussions of risk factors and the use of non-GAAP measures such as adjusted EBITDA.
On Stock Titan, these filings are complemented by AI-powered summaries designed to highlight key points from lengthy documents, helping readers quickly identify major business developments, restructuring charges, governance changes and other disclosures. Real-time updates from the SEC’s EDGAR system, along with access to insider-related forms when filed, allow users to monitor Koppers’ regulatory reporting history in one place.
The Vanguard Group filed Amendment No. 7 to Schedule 13G reporting a passive ownership stake in Koppers Holdings Inc. (KOP) as of 09/30/2025. Vanguard reported beneficial ownership of 1,539,485 shares, representing 7.80% of Koppers’ common stock.
The filing lists 0 shares with sole voting power and 151,463 with shared voting power. Vanguard reports 1,368,407 shares with sole dispositive power and 171,078 with shared dispositive power. Vanguard certified the securities were acquired and are held in the ordinary course of business and not to change or influence control.
Insider equity disclosure: A Koppers Holdings Inc. director received dividend equivalent rights (DERs) tied to restricted stock units, with each DER equal to one share of common stock. Following the reported transaction the director directly beneficially owned 28.174 shares. The filing notes that 5.303 DERs were inadvertently omitted from prior reporting and are now included. The DERs relate to deferred compensation RSUs and will convert to stock payments according to the director's prior election under the company's director deferred compensation plan, with payout timing and form determined by that plan.
Sonja Michelle Wilkerson, a director of Koppers Holdings Inc. (KOP), reported dividend equivalent rights (DERs) credited with certain restricted stock units (RSUs). The Form 4 shows a transaction dated 09/15/2025 recording 28.255 DERs acquired at a $0 price, increasing her reported beneficial ownership to 221.809 shares (or share equivalents). The filing states each DER is economically equivalent to one share of Koppers common stock and explains these DERs relate to deferred compensation payable under the company’s Director Deferred Compensation Plan, with payment timing elected by the reporting person. The filing also corrects prior reporting by adding 25.518 DERs that were inadvertently omitted from earlier disclosures. The submission is signed by an attorney-in-fact on behalf of the reporting person.
David L. Motley, a director of Koppers Holdings Inc. (KOP), reported acquisition of 28.254 dividend equivalent rights (DERs) on 09/15/2025 tied to time-based restricted stock units (RSUs). Each DER equals the economic value of one share of Koppers common stock. The report shows 221.808 shares beneficially owned by the reporting person after the transaction. The filing states the DERs carry a $0 price and that RSU payments will be made per the Director Deferred Compensation Plan, either lump sum or in installments beginning the first May 31 after separation or a later date elected by the participant. The filing corrects prior reporting by including 25.518 DERs that were inadvertently omitted earlier.
Reporting person: Director Feng Xudong reported transactions in Koppers Holdings Inc. (KOP) on Form 4. The filing shows 33.338 dividend equivalent rights (DERs) credited in connection with deferred compensation tied to restricted stock units (RSUs), which are economically equivalent to Koppers common shares. After the reported transaction the filing lists 264.474 shares beneficially owned by the reporting person.
Payment and timing: The DERs accrue with respect to additional RSUs and, once released, will be payable under the Director Deferred Compensation Plan either as a lump sum or in annual installments beginning the May 31 following separation from service or a later elected year. The filing also corrects prior reporting by including 30.109 DERs that were inadvertently not previously reported.
Ball M. LeRoy, CEO and Director of Koppers Holdings Inc. (KOP), reported a sale of 2,448 shares of Koppers common stock on 08/15/2025 at a weighted average price of $30.48 per share. Following the reported disposition, the filing shows beneficial ownership of 357,308.4007 shares held directly. The filing also discloses that 328 shares were acquired under the company Employee Stock Purchase Plan on 06/30/2025; those acquisitions were exempt under Rule 16b-3(c) and (d). The Form 4 was executed by an attorney-in-fact on 08/18/2025.
Koppers Holdings, Inc. (KOP) has filed a Form 144 to notify a proposed sale of 2,448 shares of common stock through Fidelity Brokerage Services on the NYSE with an aggregate market value of $74,620.86. The shares were acquired on 03/04/2022 via restricted stock vesting and were paid as compensation. The filer reports no securities sold in the past three months and provides the standard representation that they do not possess undisclosed material adverse information about the issuer.
Koppers Holdings, Inc. filed a Form 144 reporting a proposed sale of 2,552 shares of common stock through Fidelity Brokerage Services LLC with an aggregate market value of $71,073.20. The filing lists the approximate date of sale as 08/11/2025 and records 19,715,527 shares outstanding for the issuer in the form.
The securities to be sold were acquired by restricted stock vesting as compensation on 06/13/2024 (955 shares), 01/05/2025 (618 shares) and 06/13/2025 (979 shares). The filer reports no securities sold in the past three months and affirms they are not aware of undisclosed material adverse information.
Q2 2025 highlights (unaudited)
Net sales for the three months ended June 30, 2025 were $504.8 million versus $563.2 million in Q2 2024; six-month sales were $961.3 million versus $1,060.8 million. Net income attributable to Koppers was $16.4 million for Q2 2025 (diluted EPS $0.81) and $2.5 million for the six months ended June 30, 2025 (diluted EPS $0.12), versus $26.8 million and $39.8 million in the comparable prior periods.
Material items include $17.6 million of impairment and restructuring in Q2 and $37.6 million year-to-date, a $29.0 million pension settlement loss in Q1 2025, and an announced phthalic anhydride plant shutdown with expected pre-tax charges of $51 million to $55 million through 2026. Adjusted EBITDA totaled $77.1 million for Q2 and $132.6 million year-to-date. Cash and cash equivalents were $38.4 million at June 30, 2025. Total debt (carrying) was $977.5 million; long-term debt $962.9 million. The Credit Facility was amended in June 2025, extending maturity to January 9, 2030 and setting a 4.75:1 total net leverage covenant. Subsequent event: agreement to sell the railroad services business, expected to close in Q3 2025.
Koppers Holdings, Inc. furnished a Current Report on Form 8-K dated August 8, 2025 to announce its second quarter 2025 results by issuing a press release. The filing states the press release is included as Exhibit 99.1 and that a Cover Page Interactive Data File (Exhibit 104) is embedded in the Inline XBRL document. The 8-K is signed by Chief Financial Officer Jimmi Sue Smith and reflects the company furnished — not filed with additional financial statements — a results press release on that date. The filing provides notice that Q2 2025 results were released, but this document does not itself present the underlying numeric financial details.