A securities fraud class action lawsuit has been filed against D-Wave Quantum, Inc. (“D-Wave” or the “Company”) (NASDAQ: QBTS) on behalf of investors who purchased or otherwise acquired the Company’s securities between February 26, 2026 and August 25, 2026, inclusive. Glancy Prongay Wolke & Rotter LLP (“Glancy”) today announced the filing. The D-Wave Quantum, Inc. case, Fessler v. D-Wave Quantum, Inc. et al., was filed on October 15, 2026 in the U.S. District Court California Northern District (Case No. 3:26-cv-11953). D-Wave Quantum, Inc. investors have until December 15, 2026 to file a lead plaintiff motion.

Investors who suffered losses on D-Wave Quantum, Inc. investments can inquire about the D-Wave Quantum, Inc. class action to learn about potentially pursuing claims under the federal securities laws before the December 15, 2026 lead plaintiff deadline.

The D-Wave Quantum, Inc. case at a glance

  • Complaint filed: October 15, 2026

  • Court: U.S. District Court California Northern District

  • Class period: February 26, 2026 to August 25, 2026, inclusive

  • Lead plaintiff deadline: December 15, 2026

What happened?

On August 6, 2026, D-Wave reported its second quarter of 2026 financial results. Among other things, D-Wave issues revenue of only $3.08 million, compared to $3.1 million for the same period in 2025.

On this news, D-Wave’s stock price fell $1.98 per share, or 9.28%, to close at $19.41 per share on August 6, 2026, thereby injuring investors.

Then, on August 25, 2026, D-Wave issued a press release “announc[ing] that John Markovich is retiring and thus resigning from his position as Chief Financial Officer effective September 2, 2026.”

On this news, D-Waves stock price fell $1.84 per share, or 9.51%, to close at $17.51 per share on August 26, 2026, thereby further injuring investors

What does the D-Wave Quantum, Inc. lawsuit allege?

The D-Wave Quantum, Inc. class action lawsuit alleges that, throughout the class period, defendants made materially false and/or misleading statements and failed to disclose material adverse facts about D-Wave Quantum, Inc.’s business, operations, and prospects. Specifically, the complaint alleges defendants failed to disclose to investors that: (1) Defendants materially overstated D-Wave’s business and financial prospects; (2) the foregoing was reasonably likely to negatively impact the Company’s business and reputation; and (3) as a result, defendants’ positive statements about D-Wave Quantum, Inc.’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis at all relevant times.

Investors who purchased or otherwise acquired D-Wave Quantum, Inc. securities during the class period may move the Court no later than December 15, 2026 to request appointment as lead plaintiff in this putative class action lawsuit.

“The complaint against D-Wave Quantum, Inc. alleges, among other things, that the Company failed to disclose that Defendants materially overstated D-Wave’s business and financial prospects. Investors who purchased during the class period may be able to recover their losses in the class action, and any investor interested in serving as lead plaintiff should note the December 15, 2026 deadline,” said Charles H. Linehan, Partner at Glancy Prongay Wolke & Rotter LLP.

What’s the next step?

Glancy Prongay Wolke & Rotter LLP is a leading national shareholder rights law firm, ready to assist D-Wave Quantum, Inc. investors in potentially pursuing claims to recover their losses. To learn more about the D-Wave Quantum, Inc. lawsuit or your rights, visit the D-Wave Quantum, Inc. case page, email shareholders@glancylaw.com, or call 310-201-9150 (toll-free: 888-773-9224).

If you inquire by email, please include your mailing address, telephone number, and number of shares purchased.

To be a member of the D-Wave Quantum, Inc. class, you need not take any action at this time. You may retain counsel of your choice or take no action and remain an absent class member. No class has been certified yet in the D-Wave Quantum, Inc. case.

Frequently Asked Questions

Who is eligible? Investors who purchased or otherwise acquired D-Wave Quantum, Inc. securities between February 26, 2026 and August 25, 2026 and suffered losses may be members of the proposed class in the D-Wave Quantum, Inc. securities lawsuit.

Where was the D-Wave Quantum, Inc. lawsuit filed? The D-Wave Quantum, Inc. class action, Fessler v. D-Wave Quantum, Inc. et al., was filed on October 15, 2026 in the U.S. District Court California Northern District as Case No. 3:26-cv-11953.

What is a lead plaintiff? In the D-Wave Quantum, Inc. class action, the lead plaintiff is the investor, or group of investors, that the court appoints to represent all class members and oversee the case. Under the Private Securities Litigation Reform Act, courts generally presume the movant with the largest financial interest is the most adequate lead plaintiff.

Do I need to act to be part of the D-Wave Quantum, Inc. class? No. D-Wave Quantum, Inc. investors need not take any action at this time to be class members, and their ability to share in any future recovery does not depend on serving as lead plaintiff.

Does it cost anything to contact Glancy or participate in this action? Glancy represents D-Wave Quantum, Inc. investors on a contingency fee basis, so investors pay no attorneys’ fees out of pocket. Any attorneys’ fees and litigation expenses are paid only from a recovery, if one is obtained, and are subject to court approval.

Why work with Glancy on the D-Wave Quantum, Inc. lawsuit? Glancy Prongay Wolke & Rotter LLP is a premier law firm with decades of experience representing investors and consumers in securities litigation and other complex class action litigation. Contact Glancy about the D-Wave Quantum, Inc. shareholder lawsuit. Prior results do not guarantee a similar outcome.

About Glancy Prongay Wolke & Rotter LLP

Glancy was named one of Law360’s Securities Groups of the Year and ranked second in total investor recoveries by ISS Securities Class Action Services in 2025.

Glancy’s successes have been widely covered by leading news and industry publications, including The Wall Street Journal, The Financial Times, Bloomberg Businessweek, Reuters, the Associated Press, Barron’s, Investor’s Business Daily, Forbes, and Money.

Prior results do not guarantee a similar outcome.

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