NPKI SHAREHOLDER INVESTIGATION: Levi & Korsinsky Investigates NPK International for Possible Securities Law Violations

NEW YORK CITY, NY / ACCESS Newswire / October 30, 2026 / Levi & Korsinsky notifies investors that it has commenced an investigation into NPK International ("NPK International") (NASDAQ:NPKI) concerning potential violations of the federal securities laws.

NPK International Inc. shareholders lost money on October 29, 2026, when the stock fell sharply after the Company reported Q3 2026 financial results that missed Wall Street consensus and reduced its full-year 2026 guidance. For the third quarter of 2026, the Company reported earnings per share of $0.09 versus consensus estimates of $0.12, and revenue of approximately $76.3 million compared to consensus estimates of $76.6 million. Simultaneously, the Company cut its full-year 2026 revenue guidance to a range of $300-$305 million from its prior range of $313-$323 million, and reduced its full-year Adjusted EBITDA guidance to $90-$93 million from a prior range of $97-$103 million. Management attributed the quarterly shortfall to exceptionally dry Texas weather delaying matting deployments on large projects, despite reporting quarterly revenue growth of approximately 11% and Adjusted EBITDA growth of approximately 30%. Previously, during an earnings call on July 30, 2026, CFO Gregg Piontek stated that the Company raised guidance "in light of the strong first half profitability and favorable near-term outlook," while CEO Matthew Lanigan stated that "our pipeline is fairly advanced and locked in." The investigation concerns whether NPK International Inc. adequately disclosed risks concerning project deployment delays and weather-driven operational pressures ahead of its Q3 2026 earnings release on October 29, 2026.

If you suffered a loss on your NPK International securities and would like to explore a potential recovery under the federal securities laws, Learn More About the Investigation or contact Joseph E. Levi, Esq. via email at [email protected] or call (212)363-7500 to speak to our team of experienced shareholder advocates.

WHY LEVI & KORSINSKY: Over the past 20 years, Levi & Korsinsky LLP has established itself as a nationally-recognized securities litigation firm that has secured hundreds of millions of dollars for aggrieved shareholders and built a track record of winning high-stakes cases. The firm has extensive expertise representing investors in complex securities litigation and a team of over 70 employees to serve our clients. For seven years in a row, Levi & Korsinsky has ranked in ISS Securities Class Action Services' Top 50 Report as one of the top securities litigation firms in the United States. 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

[email protected]

Tel: (212)363-7500

Fax: (212)363-7171

SOURCE: Levi & Korsinsky, LLP