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Class action lawsuits

Quantum Corporation Securities Class Action Lawsuit: Important November 3, 2025 Lead Plaintiff Deadline

Strategic Insights

— 1 min read

The Rosen Law Firm, a global investor rights law firm, reminds investors who purchased Quantum Corporation securities between November 15, 2024 and August 18, 2025, of the crucial November 3, 2025 lead plaintiff deadline in the securities class action lawsuit. This lawsuit alleges that Quantum Corporation improperly recognized revenue, leading to a restatement of its financial statements. Eligible investors may be entitled to compensation without paying any out-of-pocket fees or costs through a contingency fee arrangement.

Key Takeaways:

  • The lawsuit covers investors who purchased Quantum Corporation securities between November 15, 2024, and August 18, 2025.
  • The lead plaintiff deadline is November 3, 2025, and investors who wish to serve as lead plaintiff must move the court by this date.
  • A class action lawsuit has already been filed, alleging that Quantum Corporation made false and/or misleading statements and/or failed to disclose its true financial situation.
  • The Rosen Law Firm, with over 100 years of combined experience, is encouraging investors to select qualified counsel with a track record of success in leadership roles.
  • The firm has achieved significant settlements in securities class actions and has a strong reputation for representing investors globally.
  • Quantum Corporation is accused of improperly recognizing revenue and failing to disclose this information, leading to a restatement of its financial statements.
  • Investors who purchased Quantum Corporation securities during the specified period may be entitled to compensation through a contingency fee arrangement.

Statistics:

  • Quantum Corporation securities were purchased between November 15, 2024, and August 18, 2025.
  • The lead plaintiff deadline is November 3, 2025.
  • The Rosen Law Firm has secured over $438 million for investors in 2019 alone.
  • The firm has been ranked in the top 4 in securities class action settlements since 2013 and has recovered hundreds of millions of dollars for investors.

Sources:

  • GlobeNewswire, "Rosen Law Firm Reminds Purchasers of Securities of Quantum Corporation of Important Lead Plaintiff Deadline in Securities Class Action Lawsuit" (October 29, 2025)
  • The Rosen Law Firm, P.A., "Securities Class Actions and Shareholder Derivative Litigation" (no date provided)
  • ISS Securities Class Action Services, "2020 Year in Review" (2020)
  • Law360, "Lorenz, Rosen Named Titans Of The Plaintiffs' Bar" (April 2020)

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