X0306 4 2021-02-25 0 0001130310 CENTERPOINT ENERGY INC CNP 0001618940 Colvin Kristie 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 SVP and CAO Common Stock 2021-02-25 4 A 0 3921 0.00 A 80077 D Common Stock 2021-02-25 4 F 0 1026 19.75 D 79051 D Common Stock 51 I By Savings Plan Common Stock 145 I By son Vesting of performance shares awarded in 2018 under the Issuer's Long-term Incentive Plan. Shares withheld for taxes upon vesting of performance shares. Total includes (i) 2,737 time-based restricted stock units ("RSUs") previously awarded under the Issuer's Long-term Incentive Plan (the "Plan") and vesting in February 2022, (ii) 4,980 RSUs previously awarded under the Plan and vesting in February 2023, and (iii) 4,472 RSUs previously awarded under the Plan and vesting in February 2024. The above awards shall vest (a) if the Reporting Person continues to be an employee of Issuer from grant date through vesting date, (b) in the event of her disability or death, and (c) for certain of the shares otherwise vesting in February 2023, in the event of her involuntary termination without cause. Also, the above awards shall vest on a pro-rata basis in the event of her retirement unless she 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. Additionally, includes (i) 6,863 RSUs previously awarded under the Plan and vesting in April 2023 and 5,449 RSUs previously awarded under the Plan and vesting in July 2023 if the Reporting Person continues to be an employee of Issuer from the grant date through the applicable vesting dates; (ii) in the event of her earlier disability or death; (iii) in the event of her involuntary termination without cause; or (iv) on a pro-rata basis upon her earlier retirement unless she satisfies various conditions for full vesting. Equivalent shares held in CenterPoint Energy, Inc. Savings Plan. Vincent A. Mercaldi, Attorney-in-Fact 2021-03-01