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Class action lawsuits

Quantum Corporation Securities Class Action Lawsuit Filed by Rosen Law Firm

Strategic Insights

— 1 min read

Rosen Law Firm, a global investor rights law firm, has reminded purchasers of securities of Quantum Corporation between November 15, 2024, and August 18, 2025, of the lead plaintiff deadline in a securities class action lawsuit filed against the company. The lawsuit alleges that Quantum Corporation made false and/or misleading statements and/or failed to disclose that it improperly recognized revenue during the fiscal year ended March 31, 2025, and that it would need to restate its previously filed financial statements for the fiscal third quarter ended December 31, 2024. Investors who purchased Quantum Corporation securities during the Class Period may be entitled to compensation without payment of any out-of-pocket fees or costs through a contingency fee arrangement.

Key Takeaways:

  • The lawsuit was filed by Rosen Law Firm on behalf of purchasers of Quantum Corporation securities between November 15, 2024, and August 18, 2025.
  • The complaint alleges that Quantum Corporation made false and/or misleading statements and/or failed to disclose that it improperly recognized revenue during the fiscal year ended March 31, 2025.
  • The company is accused of knowing about and failing to disclose the need to restate its previously filed financial statements for the fiscal third quarter ended December 31, 2024.
  • Investors who purchased Quantum Corporation securities during the Class Period may be entitled to compensation through a contingency fee arrangement.
  • A lead plaintiff deadline of November 3, 2025, has been set for the lawsuit.
  • Rosen Law Firm represents investors throughout the globe, concentrating its practice in securities class actions and shareholder derivative litigation.
  • The firm has achieved significant success in securities class actions, including the largest ever securities class action settlement against a Chinese company at the time.
  • In 2019 alone, the firm secured over $438 million for investors, and in 2020, Lawrence Rosen was named by Law360 as a Titan of Plaintiffs' Bar.

Statistics:

  • The Class Period for the lawsuit is from November 15, 2024, to August 18, 2025.
  • The lead plaintiff deadline is November 3, 2025.
  • The firm has represented investors in over $438 million in settlements in 2019.
  • The firm has received recognition from Lawdragon and Super Lawyers for its attorneys.
  • The lawsuit was filed on behalf of purchasers of Quantum Corporation securities.

Sources:

  • Newsfile Corp. - October 12, 2025
  • The Rosen Law Firm, P.A. - press release

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