D-Wave Quantum Inc. faces a securities class action in the United States District Court for the Northern District of California over alleged material misstatements and omissions concerning its business, operations and financial prospects. A November 8, 2026 notice from Robbins Geller Rudman & Dowd LLP identifies the case as Fessler v. D-Wave Quantum Inc., No. 26-cv-11953, while earlier case information identified Bronstein, Gewirtz & Grossman, LLC as having filed the action on October 15, 2026 under Case No. 5:26-cv-11953. The proposed class covers investors who purchased or acquired D-Wave securities from February 26, 2026, through August 25, 2026, inclusive. Investors have until December 15, 2026, to seek appointment as lead plaintiff, although participation in any recovery does not require serving in that role. The complaint alleges that D-Wave overstated its business and financial prospects and failed to disclose risks to its business and reputation. D-Wave reported second-quarter revenue of $3.08 million on August 6, below analysts’ expectations of $4.03 million to $4.08 million, sending its stock down $1.99, or 9.28%, to $19.41. After D-Wave announced on August 25 that Chief Financial Officer John Markovich would retire and resign effective September 2, shares fell another $1.84, or 9.51%, to close at $17.51 on August 26.