NEW YORK CITY, NY / ACCESS Newswire / November 10, 2026 / Koppers Holdings Inc. (NYSE: KOP) shares fell following the Company's third-quarter 2026 results, which showed net income declining approximately 38% and adjusted EBITDA declining approximately 18% year over year. If you bought KOP and lost money on the decline, you may have legal rights. Shareholders who suffered losses are encouraged to submit your KOP loss information now. You may also contact Joseph E. Levi, Esq. via email at jlevi@levikorsinsky.com or by telephone at (212) 363-7500.

One quarter. Two profit numbers. Adjusted EBITDA came in at $58 million, down 18% from $70.9 million a year earlier. Net income fell approximately 38%. The spread between the two: 20 percentage points.

Levi & Korsinsky is investigating potential securities law violations on behalf of KOP shareholders who lost money after the third-quarter report. The investigation is ongoing, and investors who act now can have their losses reviewed while it proceeds.

Lost money on Koppers Holdings stock? Start your KOP loss review today, or reach Joseph E. Levi, Esq. at jlevi@levikorsinsky.com or (212) 363-7500.

Levi & Korsinsky, LLP -- Top 50 securities litigation firm (ISS, seven consecutive years). Over 70 professionals. Billions recovered.

Frequently Asked Questions About the KOP Investigation

Q: Which statements are being investigated as potentially misleading? A: The investigation concerns whether Koppers Holdings made materially false or misleading statements regarding its profitability, financial performance, and fiscal 2026 outlook. Following the Company's November 6, 2026 third-quarter earnings announcement, which reported a 38% decline in net income and an 18% decline in adjusted EBITDA to $58 million, KOP shares fell.

Q: When did Koppers Holdings allegedly mislead investors? A: The investigation concerns statements made before Koppers Holdings reported its third-quarter 2026 results that allegedly caused investors to purchase KOP securities at inflated prices.

Q: What do KOP investors need to do right now? A: Investors may gather brokerage records showing purchase dates, share quantities, and prices paid. Submit your information for a no-cost, no-obligation evaluation of your potential recovery. No immediate action is required to remain eligible to participate in the investigation.

Q: What documents do I need to participate? A: You need brokerage statements or trade confirmations showing purchase dates, share quantities, prices paid, and any subsequent sale dates and prices.

Q: What if I already sold my KOP shares -- can I still recover losses? A: Yes. Eligibility is based on when you purchased, not on whether you still hold the shares. Investors who bought KOP and sold at a loss may still participate in the investigation.

Q: What does it cost me to participate? A: There is no upfront cost to submit your information and find out whether you may be eligible to recover. If you choose to participate in any resulting action, these matters are generally handled on a contingency basis, with any attorneys' fees and expenses subject to court approval.

Q: What if I live outside the United States? A: U.S. securities investigations generally cover purchases on U.S. exchanges regardless of the investor's country of residence. Investors outside the United States who bought KOP on the NYSE and suffered losses may be able to participate.

Attorney Advertising. Prior results do not guarantee similar outcomes.

CONTACT:
Levi & Korsinsky, LLP
Joseph E. Levi, Esq.
Ed Korsinsky, Esq.
33 Whitehall Street, 27th Floor
New York, NY 10004
jlevi@levikorsinsky.com
Tel: (212) 363-7500
Fax: (212) 363-7171

SOURCE: Levi & Korsinsky, LLP