DEADLINE APPROACHING: Berger Montague Advises Power Solutions International, Inc. (PSIX) Investors to Inquire About a Securities Fraud Class Action by May 19, 2026

Philadelphia, Pennsylvania--(Newsfile Corp. - May 14, 2026) - National plaintiffs' law firm Berger Montague PC announces a class action lawsuit against Power Solutions International, Inc. (NASDAQ: PSIX) ("Power Solutions" or the "Company") on behalf of investors who purchased or acquired Power Solutions shares during the period from May 8, 2025 through March 2, 2026 (the "Class Period").

Investor Deadline: Investors who purchased or acquired Power Solutions securities during the Class Period may, no later than May 19, 2026, seek to be appointed as a lead plaintiff representative of the class. To learn your rights, CLICK HERE.

Headquartered in Wood Dale, Illinois, Power Solutions designs, engineers, and manufactures advanced power systems, including products serving data center markets.

The lawsuit alleges that Power Solutions misled investors by overstating its ability to capture sales demand for its power systems solutions, particularly within the data center market, while understating the operational challenges and costs associated with expanding manufacturing capacity to meet that demand.

On November 6, 2025, Power Solutions reported third quarter 2025 financial results, revealing that gross margin declined to 23.9%, down 5.0% year over year, due in part to inefficiencies tied to the Company's accelerated production ramp-up for key data center product lines. The Company also projected full-year 2025 sales growth of 45%, signaling a significant slowdown from prior quarterly growth rates.

On this news, the Company's share price declined $15.55 per share, or approximately 19.1%, falling from $81.24 per share on November 6, 2025 to close at $65.69 per share on November 7, 2025.

Then, on March 2, 2026, Power Solutions reported fourth quarter and full year 2025 results, disclosing that gross margin declined 8% year-over-year due to ongoing inefficiencies related to its production ramp-up for data center products. The Company further revealed only modest expected margin improvement in 2026 and acknowledged it was still working to improve supply chain performance and manufacturing cost structures.

Following this news, Power Solutions shares declined $24.84 per share, or approximately 29%, from $85.75 per share on March 2, 2026 to close at $60.91 per share on March 3, 2026.

If you are a Power Solutions investor and would like to learn more about this action, CLICK HERE or please contact Berger Montague: Andrew Abramowitz at [e-mail] or [phone], or Caitlin Adorni at [e-mail] or [phone].

About Berger Montague
Berger Montague is one of the nation's preeminent law firms focusing on complex civil litigation, class actions, and mass torts in federal and state courts throughout the United States. With more than $2.4 billion in 2025 post-trial judgments alone, the Firm is a leader in the fields of complex litigation, antitrust, consumer protection, defective products, environmental law, employment law, securities, and whistleblower cases, among many other practice areas. For over 55 years, Berger Montague has played leading roles in precedent-setting cases and has recovered over $50 billion for its clients and the classes they have represented. Berger Montague is headquartered in Philadelphia and has offices in Chicago; Malvern, PA; Minneapolis; San Diego; San Francisco; Toronto, Canada; Washington, D.C., and Wilmington, DE.

For more information or to discuss your rights, please contact:

Andrew Abramowitz
Berger Montague
[phone]
[e-mail]

Caitlin Adorni
Berger Montague
[phone]
[e-mail]

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/297430

The Power Solutions International Stock at the time of publication of the news with a raise of +4,46 % to 40,29EUR on Tradegate stock exchange (14. Mai 2026, 14:07 Uhr).

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