Welcome to our dedicated page for Koppers Holdings 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.
Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on Koppers Holdings's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.
Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time EDGAR feed updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into Koppers Holdings's regulatory disclosures and financial reporting.
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.
Koppers Holdings Inc. reported that one of its directors acquired 28.343 dividend equivalent rights on 12/16/2025. These derivative securities relate to additional time-based restricted stock units credited as deferred compensation, and each right is the economic equivalent of one share of Koppers common stock.
After this accrual, the director beneficially owns 250.151 dividend equivalent rights, held directly. Under the company’s Director Deferred Compensation Plan, the restricted stock units associated with these rights will be paid in either a lump sum or annual installments according to the director’s prior payment elections after separation from service or on a specified May 31 date.
A director of Koppers Holdings Inc. (KOP) reported acquiring 5.89 dividend equivalent rights on 12/16/2025. These rights accrued on additional restricted stock units credited as deferred compensation, and each dividend equivalent right is the economic equivalent of one share of Koppers Holdings common stock.
Following this transaction, the director beneficially owns 34.064 dividend equivalent rights, held directly. Any shares ultimately delivered from the related restricted stock units will be paid in a lump sum or in annual installments after separation from service, based on the director’s prior elections under the Koppers Holdings Director Deferred Compensation Plan.
Koppers Holdings Inc. reported an insider equity transaction by one of its directors involving dividend equivalent rights tied to deferred compensation. On 12/16/2025, the director acquired 33.442 dividend equivalent rights, each economically equivalent to one share of Koppers common stock, bringing the director’s total derivative holdings to 297.916 such rights held directly.
The dividend equivalent rights accrued in connection with additional restricted stock units credited under the Koppers Holdings Inc. Director Deferred Compensation Plan. Once the related restricted stock units are released, they will be paid according to the director’s prior election, either in a lump sum or in annual installments beginning on May 31 following separation from service or a later May 31 chosen under the plan.