Quantum Computing (QUBT)

=== SEC Form 4/A — Statement of Changes in Beneficial Ownership === Document Type: 4/A Period of Report: 2026-08-20 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Quantum Computing Inc. (QUBT) CIK: 0001758009 --- Reporting Owner --- Name: Huang Yuping CIK: 0001935476 Role: Director, Officer (CEO and President), 10%+ Owner --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-20 | Code: A (Grant or award) Shares: +584,897 | Price: $0.00 Total Value: $58.49 Shares Owned After: 21,531,173 | Ownership: D (Direct) Footnotes: [F1] 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. [F1] 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. --- Derivative Transactions --- [Transaction #1] Security: Warrants to Purchase Shares of Common Stock Date: 2026-08-20 | Code: X (Exercise of ITM/ATM derivative) Shares: -584,897 | Price: $0.00 Exercise Price: $0.00 Exercisable: N/A | Expires: 2027-06-16 Shares Owned After: 15,316 | Ownership: D (Direct) Footnotes: [F1] 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. [F1] 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. --- Footnotes (Complete Index) --- F1: 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. --- Signature --- /s/ /s/ Yuping Huang (2026-08-24)