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StocksUpdated×3•Originally published 21 April 2026•Updated 22 April 2026•

1 min read

Class Action Lawsuits Expand to Include Gartner, monday.com, and Other Firms

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Key Facts

1The Gross Law Firm issued an alert for Gossamer Bio (GOSS) shareholders regarding alleged misleading statements about its Phase 3 PROSERA study.

2Investors in ImmunityBio (IBRX) and Coty Inc. (COTY) face deadlines to lead securities fraud class action lawsuits.

about 1 month ago

Version History

Version 3about 1 month ago

What changed: Added specific details regarding Gossamer Bio's PROSERA study failure, including issues at Latin American sites, the 80% stock price drop, and the specific class period dates for investors.

Version 2about 1 month ago

What changed: The story was updated to include four additional companies facing legal action: Gartner, United Homes Group, monday.com, and Lufax Holding.

Version 1about 1 month ago

What changed: Added specific class action period dates, the clinical failure announcement date (Feb 23, 2026), the specific failed clinical metric (six-minute-walk distance), and the involvement of law firm Hagens Berman.

Leading law firms, led by The Gross Law Firm, have issued new shareholder alerts for Gartner, Inc. (IT), monday.com Ltd. (MNDY), and Lufax Holding Ltd (LU) regarding securities class action lawsuits. Specific allegations against Gossamer Bio (GOSS) claim the company concealed risks related to patient enrollment and unusual placebo responses at Latin American clinical trial sites during its PROSERA study. The failure of this study to meet its primary endpoint triggered a massive stock price collapse of over 80%. The class action covers investors who purchased securities between June 16, 2025, and February 20, 2026. Additionally, a June 9, 2026, deadline has been set for lead plaintiffs in the litigation against United Homes Group (UHG). These legal actions, which also involve ImmunityBio and Coty Inc., seek to recover investor losses stemming from alleged fraudulent disclosures.