XXI · Twenty One Capital, Inc.

Pursuant to the Separation Agreement, the Issuer agreed to repurchase 226,860 shares of Class A common stock held by the reporting person for $5.23 per share in cash.

Pursuant to the Separation Agreement and Release entered into by the Issuer and the reporting person on July 20, 2026 (the "Separation Agreement"), the Issuer agreed to make a cash payment of $5.23 per restricted stock unit ("RSU") for the 80,393 RSUs that vested as of July 1, 2026 in full satisfaction of such RSUs.

Due to an administrative error, the reporting person's Form 4 filed on April 13, 2026 inadvertently overstated the amount of securities beneficially owned following reported transactions by 360 shares. The amount reported in Column 5 reports the correct amount of securities beneficially owned.

Reflects the forfeiture of unvested RSUs, for no consideration, pursuant to the Separation Agreement, in an exempt transaction under Rule 16a-4(d).

Represents shares of Class A common stock withheld by the Issuer to satisfy tax withholding upon the grant of shares of Class A common stock or vesting of restricted stock units ("RSUs"), as applicable.

Represents shares of Class A common stock withheld by the Issuer to satisfy tax withholding upon the grant of shares of Class A common stock or vesting of restricted stock units ("RSUs"), as applicable.

Represents shares of Class A common stock withheld by the Issuer to satisfy tax withholding upon the vesting of RSUs.

Represents a grant of restricted stock units ("RSUs"), which vest as follows: (a) 25% of the restricted stock units vested as of April 1, 2026, and (b) the remaining 75% of the RSUs will vest quarterly in equal tranches over the subsequent three years. Each RSU represents a contingent right to receive one share of Class A common stock.

Represents a grant of RSUs, which vest as follows: (a) 321,573 RSUs vested as of April 1, 2026, and (b) the remaining 1,286,293 RSUs will vest quarterly in equal tranches over the subsequent four years. Each RSU represents a contingent right to receive one share of Class A common stock.

Represents the part of the annual bonus payment for the fiscal year ended December 31, 2025 payable in the form of Class A common stock, representing $236,250 at a fair market value of $6.64 per share.

The stock options vest as follows: (a) 25% of the stock options will vest on November 17, 2026, and (b) the remaining 75% of the stock options will vest in equal monthly installments over the subsequent 36 months.

The stock options vest as follows: (a) 25% of the stock options will vest on April 1, 2026, and (b) the remaining 75% of the stock options will vest quarterly in equal tranches over the subsequent three years.

The stock options vest as follows: (a) 20% of the stock options will vest on April 1, 2026, and (b) the remaining 80% of the stock options will vest quarterly in equal tranches over the subsequent four years.