Quantum Biopharma Ltd.

USDC – Southern District of New York

december 31, 2025

CLASS PERIOD: january 6, 2021 – october 15, 2025
LEAD PLAINTIFF DEADLINE: 

Please complete the form below to contact Kaplan Fox regarding the Quantum Biopharma Investigation:

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Principle Contacts

Donnie Hall

Donald R. Hall

DHall@kaplanfox.com

Laurence D. King

LKing@kaplanfox.com
Quantum Biopharma

Kaplan Fox Alerts Investors to Securities Class Action on Behalf of Quantum Biopharma Ltd. (QNTM) Shareholders

Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Canadian Imperial Bank of Commerce (“CIBC”) and Royal Bank of Canada (“RBC”), as well as their broker-dealer subsidiaries (the “Defendants”) on behalf of investors who sold the securities of Quantum Biopharma Ltd., formerly known as FSD Pharma, Inc. (“Quantum” or the “Company”)(NASDAQ: QNTM) between January 6, 2021 and October 15, 2025, inclusive (the “Class Period”).

If you sold Quantum securities during the Class Period and have suffered losses, you may CLICK HERE to contact us. You may also contact Kaplan Fox by emailing mail@kaplanfox.com or dhall@kaplanfox.com, or by calling (800) 290-1952.

CLICK HERE TO JOIN THE QUANTUM BIOPHARMA CASE

The complaint alleges that “spoofing” is a manipulative and illegal trading practice that involves submitting and then cancelling buy or sell orders without any genuine intent to execute them. 

The complaint alleges that during the Class Period, Defendants repeatedly entered thousands of spoofed sell orders designed to create the false impression in the market that Quantum’s stock price was falling and that these manipulative orders were calculated to (and successfully did) deceive or induce other investors to sell their holdings at artificially low prices. Further, the complaint alleges that Defendant’s purchased shares at these artificially depressed levels and positioned themselves to profit at the same time that investors were baited into selling shares at artificially depressed prices.

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If you have any questions about this Notice, your rights, or your interests, please contact:

CONTACT:
Donald R. Hall
KAPLAN FOX & KILSHEIMER LLP
800 Third Avenue, 38th Floor
New York, New York 10022
(212) 687-1980
dhall@kaplanfox.com

Laurence D. King
KAPLAN FOX & KILSHEIMER LLP
1999 Harrison Street, Suite 1560
Oakland, California 94612
(415) 772-4704
lking@kaplanfox.com

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