D-Wave Quantum (NYSE: QBTS) shares fell sharply on Wednesday, dropping more than 9% during late-session trading after a surprise executive departure rattled investor confidence.

The sell-off was triggered by the announcement that Chief Financial Officer John Markovich is resigning from the quantum computing company, effective September 2, 2026.

D-Wave disclosed the news just after market close on Monday, giving investors little time to process the leadership change before Wednesday’s session opened.

Markovich has held the CFO role for five years, making him one of the longer-serving executives at the company during a critical period of growth.

His tenure included a key role in taking D-Wave public in 2022, a milestone that marked a significant step in the company’s evolution as a commercial quantum computing firm.

Beyond the public listing, Markovich was instrumental in helping the company raise more than $900 million in capital throughout his time in the role.

Replacing him on an interim basis will be Greg Golkov, who currently serves as the company’s senior vice president of finance, providing some continuity in the finance function.

D-Wave moved to address concerns about the nature of the departure, stating that Markovich’s exit was not related to any disagreement over business operations, accounting policies, financial statements, or internal controls.

That clarification was intended to reassure investors that the transition does not signal any underlying financial or reporting problems within the company.

Despite that assurance, markets responded negatively, as unexpected CFO departures at high-growth technology companies often prompt concern about strategic direction and near-term financial execution.

The broader quantum computing sector remains highly sensitive to corporate governance signals, given the speculative premium that many investors attach to companies in the space.

D-Wave has been one of the more active quantum computing firms in pursuing commercial applications, and leadership stability has been viewed as a key factor in maintaining investor confidence.

The stock’s sharp decline on Wednesday reflects how quickly sentiment can shift in a sector where trust in management teams is closely tied to share price performance.