Quantum Computing Inc. (QUBT) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-28 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Quantum Computing Inc. (QUBT) CIK: 0001758009 --- Reporting Owner --- Name: Begliarbekov Milan CIK: 0002070151 Role: Officer (Chief Operating Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-28 | Code: A (Grant or award) Shares: +24,774 | Price: $0.00 Shares Owned After: 50,314 | Ownership: D (Direct) Footnotes: [F1] On May 28, 2026, the Reporting Person was granted 24,774 restricted stock units ("RSUs"). Each RSU represents the right to receive one share of the Company's common stock upon vesting. The RSUs will vest as follows: 1/3 of the RSUs will vest on May 28, 2027, 1/3 of the RSUs will vest on May 28, 2028 and 1/3 of the RSUs will vest on May 28, 2029, in each case subject to the Reporting Person's continuous service through each applicable vesting date. --- Derivative Transactions --- [Transaction #1] Security: Options to Purchase Shares of Common Stock Date: 2026-05-28 | Code: A (Grant or award) Shares: +9,979 | Price: $0.00 Exercisable: N/A | Expires: 2036-05-28 Shares Owned After: 267,579 | Ownership: D (Direct) Footnotes: [F2] On May 28, 2026, the Reporting Person was granted stock options to purchase 9,979 shares of the Company's common stock at an exercise price of $12.24 per share, which was the closing price on the Nasdaq Stock Market on the grant date. The options have a ten-year term and will vest as follows: 1/3 of the options will vest on May 28, 2027, 1/3 of the options will vest on May 28, 2028 and 1/3 of the options will vest on May 28, 2029, in each case subject to the Reporting Person's continuous service through each applicable vesting date. [F2] On May 28, 2026, the Reporting Person was granted stock options to purchase 9,979 shares of the Company's common stock at an exercise price of $12.24 per share, which was the closing price on the Nasdaq Stock Market on the grant date. The options have a ten-year term and will vest as follows: 1/3 of the options will vest on May 28, 2027, 1/3 of the options will vest on May 28, 2028 and 1/3 of the options will vest on May 28, 2029, in each case subject to the Reporting Person's continuous service through each applicable vesting date. --- Footnotes (Complete Index) --- F1: On May 28, 2026, the Reporting Person was granted 24,774 restricted stock units ("RSUs"). Each RSU represents the right to receive one share of the Company's common stock upon vesting. The RSUs will vest as follows: 1/3 of the RSUs will vest on May 28, 2027, 1/3 of the RSUs will vest on May 28, 2028 and 1/3 of the RSUs will vest on May 28, 2029, in each case subject to the Reporting Person's continuous service through each applicable vesting date. F2: On May 28, 2026, the Reporting Person was granted stock options to purchase 9,979 shares of the Company's common stock at an exercise price of $12.24 per share, which was the closing price on the Nasdaq Stock Market on the grant date. The options have a ten-year term and will vest as follows: 1/3 of the options will vest on May 28, 2027, 1/3 of the options will vest on May 28, 2028 and 1/3 of the options will vest on May 28, 2029, in each case subject to the Reporting Person's continuous service through each applicable vesting date. --- Signature --- /s/ /s/ Milan Begliarbekov (2026-06-01)