X0609 4/A 2026-08-20 2026-08-21 0 0001758009 Quantum Computing Inc. QUBT 0001935476 Huang Yuping false 5 MARINE VIEW PLZ #214 HOBOKEN NJ 07030 1 1 1 0 CEO and President 0 Common Stock 2026-08-20 4 A 0 584897 0.0001 A 21531173 D Warrants to Purchase Shares of Common Stock 0.0001 2026-08-20 4 X 0 584897 0.00 D 2027-06-16 Common Stock 584897 15316 D This Form 4/A is being filed solely to correct the exercise price of the warrants to purchase 584,897 shares of common stock of the Registrant, which were acquired in connection with the acquisition of QPhoton, Inc. by Quantum Computing Inc. in June 2022 and exercised on August 20, 2026. The correct exercise price of the warrants of $0.0001 per share was previously reported in the Form 3 filed by the reporting person on July 27, 2022. /s/ Yuping Huang 2026-08-24