Glancy Prongay Wolke & Rotter LLP (“GPWR”), announces that it has filed a class action lawsuit in the United States District Court for the District of New Jersey, captioned Yung v. Eos Energy Enterprises, Inc., et al., Case No. 2:26-cv-02372, on behalf of persons and entities that purchased or otherwise acquired Eos Energy Enterprises (“Eos Energy” or the “Company”) (NASDAQ: EOSE) securities between November 5, 2025 and February 26, 2026, inclusive (the “Class Period”). Plaintiff pursues claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 (the “Exchange Act”).

Investors are hereby notified that they have 60 days from the date of this notice to move the Court to serve as lead plaintiff in this action.

IF YOU SUFFERED A LOSS ON YOUR EOS ENERGY ENTERPRISES (EOSE) INVESTMENTS, CLICK HERE TO INQUIRE ABOUT POTENTIALLY PURSUING CLAIMS TO RECOVER YOUR LOSS UNDER THE FEDERAL SECURITIES LAWS.

What Happened?

On February 26, 2026, Eos Energy announced fourth quarter and full year 2025 results, reporting, among other things, full year 2025 revenue of $114.2 million, falling far short of the Company’s previously issued guidance of $150 to $160 million. Management attributed these results to, in part, that “battery line downtime ran well above industry norms” and “the ability for the automated bipolar production to hit quality targets took longer than expected.” The Company further disclosed it had “uncovered inefficiencies that result in longer end-to-end production times.”

On this news, Eos Energy’s stock price fell $4.39, or 39.4%, to close at $6.74 per share on February 26, 2026, thereby injuring investors.

What Is The Lawsuit About?

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors that: (1) the Company was unable to achieve the ramp in production and capacity utilization required to achieve its previously set guidance; (2) the Company’s battery line downtime was running well above industry norms, the design intent of the line, and internal forecasts; (3) the Company was experiencing delays in the ability for its automated bipolar production to hit quality targets; (4) the Company’s inadequate systems and processes prevented it from ensuring reasonably accurate guidance and that its public disclosures were timely, accurate, and complete; and (5) as a result, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis at all relevant times.

If you purchased or otherwise acquired Eos Energy securities during the Class Period, you may move the Court no later than 60 days from the date of this notice to ask the Court to appoint you as lead plaintiff.

Contact Us To Participate or Learn More:

If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact us:

Charles Linehan, Esq.,
Glancy Prongay Wolke & Rotter LLP,
1925 Century Park East, Suite 2100,
Los Angeles California 90067
Email: shareholders@glancylaw.com
Telephone: 310-201-9150,
Toll-Free: 888-773-9224
Visit our website at www.glancylaw.com.
Follow us for updates on LinkedIn, Twitter, or Facebook.

If you inquire by email, please include your mailing address, telephone number and number of shares purchased.

To be a member of the Class you need not take any action at this time; you may retain counsel of your choice or take no action and remain an absent member of the Class.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260306248138/en/