X0306 4 2021-02-20 0 0001130310 CENTERPOINT ENERGY INC CNP 0001802390 Mercado Kenneth M 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 EVP Common Stock 2021-02-20 4 F 0 829 21.43 D 79703 D Common Stock 7496 I By Savings Plan Shares withheld for taxes upon vesting of time-based restricted stock units. Total includes (i) 2,819 time-based restricted stock units ("RSUs") previously awarded under the Issuer's Long-term Incentive Plan (the "Plan") and vesting in February 2022, (ii) 7,151 RSUs previously awarded under the Plan and vesting in February 2023, and (iii) 11,439 RSUs previously awarded under the Plan and vesting in February 2024. The above awards shall vest (i) if the Reporting Person continues to be an employee of Issuer from grant date through vesting date and (ii) in the event of his disability or death. Also, the above awards shall vest on a pro-rata basis in the event of his retirement unless he satisfies various conditions for full vesting. However, for shares vesting in February 2024, any such vesting is conditioned upon positive operating income in the last full calendar year of the restricted period except in the case of death or disability. Equivalent shares held in CenterPoint Energy, Inc. Savings Plan. Vincent A. Mercaldi, Attorney in Fact 2021-02-23