CIBC and RBC Accused of Manipulating Quantum Stock Prices
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 1h ago
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Source: Globenewswire
- Class Action Filed: Bronstein, Gewirtz & Grossman LLC has initiated a class action lawsuit against Canadian Imperial Bank of Commerce (CIBC) and Royal Bank of Canada (RBC), alleging that they defrauded investors by manipulating trades to affect Quantum Biopharma Ltd. (NASDAQ: QNTM) stock prices.
- False Trading Allegations: The complaint claims that during the period from January 6, 2021, to October 15, 2025, the defendants placed thousands of spoofed sell orders, creating a false impression of declining stock prices, thereby misleading investors into selling at depressed prices.
- Damages Recovery: The lawsuit seeks to recover damages for all investors who sold Quantum shares during the class period, with a deadline of February 23, 2026, for investors to apply to be lead plaintiffs to participate in any potential recovery.
- Law Firm Credentials: Bronstein, Gewirtz & Grossman LLC is nationally recognized for representing investors in securities fraud class actions, having recovered hundreds of millions of dollars for investors, highlighting its critical role in upholding market integrity.
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About QNTM
Quantum BioPharma Ltd. is a Canada-based biopharmaceutical company. The Company is engaged in building a portfolio of assets and biotech solutions for the treatment of challenging neurodegenerative and metabolic disorders and alcohol misuse disorders with drug candidates in different stages of development. Through its wholly owned subsidiary, Lucid Psycheceuticals Inc., it is focused on the research and development of its lead compound, Lucid-MS, which is a patented new chemical entity to prevent and reverse myelin degradation, the underlying mechanism of multiple sclerosis. The Company has also licensed unbuzzd, a formulation of natural ingredients, vitamins, and minerals to help with liver and brain function for the purposes of quickly relieving individuals from the effects of alcohol consumption. It maintains a portfolio of strategic investments through its wholly owned subsidiary, FSD Strategic Investments Inc., which represents loans secured by residential or commercial property.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.








