Quantum Computing Inc.

Except as listed below, there is no action, suit, or proceeding by any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the executive officers of the Company or our subsidiaries, threatened against or affecting the Company, our common stock, our subsidiaries, or the Company’s or its subsidiaries’ officers or directors in their capacities as such, in which an adverse decision could have a material adverse effect on the Company.

Securities Class Action Lawsuit

On February 25, 2025, a class action lawsuit was filed against the Company and certain of its current and past officers in the New Jersey District Court, by a plaintiff seeking to represent a class of all persons who purchased the Company’s securities between March 30, 2020 and January 15, 2025, alleging violations of Section 10(b) and 20(a) of the Exchange Act. The complaint alleges that the Company made false and/or misleading statements and/or failed to disclose material information about the Company’s customers, contracts and business operations in its public statements and SEC filings. The plaintiff seeks unspecified monetary damages plus attorney’s fees and costs. In June 2025, the New Jersey District Court designated a lead plaintiff who filed an amended operative complaint on or about August 26, 2025. The Company filed a motion to dismiss the amended operative complaint on November 14, 2025. While the Company’s motion to dismiss was pending, the lead plaintiff filed a motion for leave to file a second amended complaint. The second amended complaint was subsequently filed on February 13, 2026. The Company filed a motion to dismiss the second amended complaint on March 13, 2026 and lead plaintiff filed its opposition to the Company’s motion to dismiss on April 22, 2026. On May 22, 2026 the Company filed a reply memorandum of law in support of the motion to dismiss. The Company disputes the allegations in the complaint and intends to vigorously defend against the claims asserted. Given the early stage of the litigation, the Company is unable to estimate a range of potential loss at this time; however, an unfavorable outcome could have a material adverse effect on the Company’s financial condition, results of operations and cash flows.

Shareholder Derivative Action Lawsuit

On March 30, 2025, a shareholder derivative action (the “March 2025 Derivative Action”) was filed against certain of the Company’s current and past officers and directors, purportedly on behalf of the Company, in the United States District Court for the District of New Jersey, for alleged breaches of fiduciary duties, unjust enrichment, abuse of control, waste of corporate assets, and violations of the Exchange Act by the named officers and directors. The plaintiff seeks unspecified monetary damages plus attorney’s fees and costs. No pre-litigation demand was made on the Company’s board of directors. The Company and its board of directors dispute the allegations in the complaint and intend to vigorously defend against the asserted claims.

On May 6, 2025, a shareholder derivative action (the “May 2025 Derivative Action”) was filed against certain of the Company’s current and past officers and directors, purportedly on behalf of the Company, in the United States District Court for the District of New Jersey, for alleged breaches of fiduciary duties, gross mismanagement, waste of corporate assets, unjust enrichment, aiding and abetting breaches of fiduciary duties, and violations of the Exchange Act. The plaintiff seeks unspecified monetary damages plus attorney’s fees and costs. No pre-litigation demand was made on the Company’s board of directors. The Company and its board of directors dispute the allegations in the complaint and intend to vigorously defend against the asserted claims.

On June 19, 2025, a shareholder derivative action (the “June 2025 Derivative Action”) was filed against certain of the Company’s current and past officers and directors, purportedly on behalf of the Company, in the United States District Court for the District of New Jersey, for alleged breaches of fiduciary duties, waste, unjust enrichment, common law fraud, and violations of the Exchange Act. The plaintiff seeks unspecified monetary damages plus attorney’s fees and costs. The Company and its board of directors dispute the allegations in the complaint and intend to vigorously defend against the asserted claims.

On September 25, 2025, a shareholder derivative action (the “September 2025 Derivative Action”) was filed against certain of the Company’s current and past officers and directors, purportedly on behalf of the Company, in the Superior Court of New Jersey Chancery Division, Hudson County, for alleged breaches of fiduciary duty, unjust enrichment, gross mismanagement, corporate waste, and aiding and abetting fiduciary duties. The complaint is premised on the same core facts as the securities class action and other related derivative actions previously filed and pending in the United States

District Court for the District of New Jersey, specifically, the complaint alleges omissions and misrepresentations related to Quad M, QPhoton, NASA, millionways, and the TFLN foundry. The plaintiff seeks unspecified monetary damages plus attorney’s fees and costs. The Company and its board of directors dispute the allegations in the complaint and intend to vigorously defend against the asserted claims.

The March 2025 Derivative Action, May 2025 Derivative Action, June 2025 Derivative Action, and September 2025 Derivative Action, have each been stayed pending the resolution of the Company’s motion to dismiss the Securities Class Action.