New Class Action Claims CIBC, RBC Rigged Quantum Shares

By Katryna Perera · December 22, 2025, 2:34 PM EST

A Quantum Biopharma investor has filed a proposed class action against several major Canadian banks, accusing them of running a spoofing scheme for years that artificially drove down Quantum's stock price...

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Documents

Case Information

Case Title

Durkacz v. CIBC World Markets, Inc. et al

Case Number

1:25-cv-10565

Court

New York Southern

Nature of Suit

Securities/Commodities

Date Filed

December 19, 2025