X0206 3 2022-02-03 0 0001786205 Arcellx, Inc. ACLX 0001613689 Elghandour Rami C/O ARCELLX, INC 25 WEST WATKINS MILL ROAD, SUITE A GAITHERSBURG MD 20878 1 1 0 0 See Remarks Stock Option (right to buy) 6.28 2031-02-06 Common Stock 1068005 D Stock Option (right to buy) 6.28 2031-06-09 Common Stock 837602 D Shares issued pursuant to the Issuer's 2017 Equity Incentive Plan (the "2017 Plan"). Subject to the Reporting Person continuing to be a Service Provider (as defined 2017 Plan) through each applicable date, thirty-sixth (1/36th) of the shares subject to the option shall vest each month following the Vesting Commencement Date on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month). "Vesting Commencement Date" shall mean January 22, 2021. Shares issued pursuant to the Issuer's 2017 Equity Incentive Plan (the "2017 Plan"). Subject to the Reporting Person continuing to be a Service Provider (as defined 2017 Plan) through each applicable date, thirty-sixth (1/36th) of the shares subject to the option shall vest each month following the Vesting Commencement Date on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month). "Vesting Commencement Date" shall mean January 22, 2021. President, CEO and Chairman of the Board Exhibit 24 - Power of Attorney /s/ Lance Thibault, as Attorney-in-Fact 2022-02-03