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.
Koppers Holdings Inc. reported equity transactions by its CEO and director on a Form 4. On January 5, 2026, the executive received 27,152 shares of common stock from a new grant of time-based restricted stock units that vest 25% per year over four years. The filing shows total common stock beneficially owned rising through conversions of previously granted restricted stock units and dividend equivalent rights, then decreasing when shares were surrendered to cover tax withholding at a price of $26.93 per share.
In Table II, the executive acquired new restricted stock units and dividend equivalent rights tied to performance share units whose performance criteria for periods ending December 31, 2025 have been satisfied. Some units remain subject to continued service through January 5, 2028, and if total shareholder return for the three-year period beginning January 1, 2025 is negative, the cumulative units that may vest for that period are capped at 150% of the target amount.
Koppers Holdings Inc. officer Stephanie L. Apostolou, Chief Legal & Sustainability Officer and Secretary, reported multiple equity transactions in early 2026. On January 5, 2026, she was awarded 9,876 time-based restricted stock units (RSUs) that will vest in four annual 25% installments. These RSUs convert into common stock on a one-for-one basis.
On the same date, previously granted performance share units (PSUs) and related dividend equivalent rights (DERs) that had met performance criteria were converted, adding 4,666 and 240 shares of common stock, respectively. She then surrendered 5,757 shares at $26.93 per share to cover tax withholding on vesting RSUs and PSUs. Following these transactions, she directly beneficially owned 58,902 shares of Koppers common stock.
Koppers Holdings Inc. reported insider equity activity by its Chief Accounting Officer on a Form 4. On January 5, 2026, the officer acquired 7,128 shares of common stock at $0, reflecting equity compensation, and also acquired 104 shares from the release of dividend equivalent rights. The officer then surrendered 2,470 shares at $26.93 to cover taxes related to restricted stock unit (RSU) vesting, leaving 35,946 common shares beneficially owned directly.
In derivative securities, the officer was granted 357 restricted stock units and 3 dividend equivalent rights on January 2, 2026, plus additional movements in existing dividend equivalent rights. The RSUs generally convert into common stock on a one-for-one basis and vest over time, with some awards tied to performance and total shareholder return criteria through December 31, 2027.
Koppers Holdings Inc. CEO and director reported an automatic equity-related accrual. On 12/16/2025, the insider acquired 1,087 dividend equivalent rights, which are derivative securities linked to Koppers common stock, at a price of $0.
Following this transaction, the reporting person held 1,991 derivative securities directly. The dividend equivalent rights accrued in connection with existing time-based restricted stock units and performance-based stock units, and each right is the economic equivalent of one share of Koppers Holdings Inc. common stock.
Koppers Holdings Inc. officer Stephanie L. Apostolou, who serves as Chief Legal&Sus Officer & Sec., reported an equity-related transaction. On 12/16/2025, she was credited 245 dividend equivalent rights (DERs), a type of derivative security that tracks the value of Koppers common stock, at a price of $0 per right.
These DERs accrued in connection with additional time-based restricted stock units (RSUs) and performance-based stock units (PSUs) previously granted on January 4, 2022, January 4, 2023, January 4, 2024, January 3, 2025 (for RSUs), and January 4, 2023 (for PSUs). Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock. Following this accrual, she beneficially owned 349 dividend equivalent rights directly.
An officer of Koppers Holdings Inc., serving as President and CTO, reported an acquisition of 522 dividend equivalent rights (DERs) on 12/16/2025. These DERs arose from dividends on existing time-based restricted stock units (RSUs) and performance-based stock units (PSUs), with 420 tied to RSUs granted on January 4, 2022, January 4, 2023, January 4, 2024, and January 3, 2025, and 102 tied to PSUs granted on January 4, 2023.
Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock, giving the holder the same value as owning a share when dividends are paid. Following this transaction, the officer beneficially owns 809 DERs directly. The report reflects a non-cash increase in equity-linked compensation rather than an open-market stock purchase or sale.
Koppers Holdings Inc. reported that a company officer serving as Vice President, Information Technology received 67 dividend equivalent rights on December 16, 2025, linked to existing equity awards. After this accrual, the officer beneficially owned 108 derivative securities directly.
The dividend equivalent rights accrued on additional time-based restricted stock units granted on January 4, 2022, January 4, 2023, January 4, 2024, and January 3, 2025, and on performance-based restricted stock units granted on January 4, 2023. Each dividend equivalent right is the economic equivalent of one share of Koppers Holdings Inc. common stock, aligning the officer’s economic interest with the company’s common shares.
Koppers Holdings Inc. reported an insider equity compensation change for its SVP, Culture and Engagement. On 12/16/2025, the executive acquired 169 dividend equivalent rights (DERs), each economically equal to one share of Koppers Holdings Inc. common stock. These DERs accrued on existing time-based and performance-based restricted stock units (RSUs and PSUs) previously granted in January 2023, January 2024, and January 2025.
Of the 169 DERs, 142 relate to RSUs granted on January 4, 2023, January 4, 2024, and January 3, 2025, and 27 relate to PSUs granted on January 4, 2023. After this transaction, the reporting person directly beneficially owns 234 dividend equivalent rights with a stated price of $0 per right.
Koppers Holdings Inc. reported an insider equity update involving its Chief Accounting Officer. On 12/16/2025, the officer acquired 113 dividend equivalent rights (DERs) tied to time-based restricted stock units (RSUs). Each DER is described as the economic equivalent of one share of Koppers Holdings common stock.
These DERs accrued with respect to additional RSUs credited to the officer that relate to RSU grants originally made on January 4, 2022, January 4, 2023, January 4, 2024, and January 3, 2025. Following this transaction, the officer beneficially owns 168 such derivative securities, held directly. The transaction price for the DERs is listed as $0 per derivative security.
Koppers Holdings Inc. reported an equity-related transaction for its Chief Financial Officer. On 12/16/2025, the CFO acquired 222 dividend equivalent rights (DERs) at a price of $0 per right. These DERs accrued in connection with additional time-based and performance-based restricted stock units already credited to the executive.
Of the new DERs, 183 are tied to restricted stock units granted on January 4, 2022, January 4, 2023, January 4, 2024, and January 3, 2025, and 39 are tied to performance stock units granted on January 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings common stock. Following this accrual, the CFO beneficially owns 328 derivative securities in the form of DERs.