NuScale Investors Seek Lead Plaintiff in Class Action Lawsuit

Robbins Geller Rudman & Dowd LLP announces opportunity for NuScale Power Corporation investors to lead investor class action.

Mar. 28, 2026 at 2:33am

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The law firm of Robbins Geller Rudman & Dowd LLP announces that purchasers of NuScale Power Corporation (NYSE: SMR) Class A common stock between May 13, 2025 and November 6, 2025 have until April 20, 2026 to seek appointment as lead plaintiff of the NuScale class action lawsuit. The lawsuit alleges that NuScale, certain NuScale executives, and Fluor Corporation violated the Securities Exchange Act of 1934 through false and misleading statements about NuScale's commercialization partnership with ENTRA1 Energy LLC.

Why it matters

This class action lawsuit highlights the risks and challenges facing NuScale Power Corporation as it seeks to commercialize its small modular nuclear reactor technology. The allegations raise questions about NuScale's reliance on an inexperienced partner, ENTRA1, and the financial and operational implications of that relationship.

The details

The NuScale class action lawsuit alleges that defendants made false and/or misleading statements and/or failed to disclose that: (i) ENTRA1 had no significant prior experience in the nuclear power generation industry; (ii) NuScale had entrusted its commercialization and deployment to an entity lacking relevant expertise; (iii) the purported experience of ENTRA1's principals actually referred to a distinct entity without nuclear power experience; and (iv) NuScale's commercialization strategy was exposed to material risks of failure, delays, and other setbacks.

  • The class period is from May 13, 2025 to November 6, 2025.
  • Investors have until April 20, 2026 to seek appointment as lead plaintiff.

The players

NuScale Power Corporation

A company developing small modular nuclear reactor technology.

Fluor Corporation

An engineering and construction firm named as a defendant in the lawsuit.

ENTRA1 Energy LLC

A company that NuScale partnered with for the commercialization of its nuclear reactor technology, but allegedly lacked significant prior experience in the industry.

John L. Hopkins

The CEO of NuScale Power Corporation.

Robbins Geller Rudman & Dowd LLP

The law firm representing the plaintiffs in the class action lawsuit.

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What they’re saying

“If you suffered substantial losses and wish to serve as lead plaintiff of the NuScale class action lawsuit, please provide your information here.”

— J.C. Sanchez, Attorney, Robbins Geller

What’s next

The judge will decide on April 20, 2026 whether to allow investors to serve as lead plaintiff in the class action lawsuit against NuScale Power Corporation.

The takeaway

This case highlights the importance of thoroughly vetting partners and commercialization strategies, especially in highly technical and regulated industries like nuclear power. Investors will be closely watching to see if NuScale's reliance on an inexperienced partner leads to further setbacks and financial losses.