X0306 4 2019-02-28 0 0001130310 CENTERPOINT ENERGY INC CNP 0001134707 O'Brien Dana C. 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 SVP & Gen Counsel Common Stock 2019-02-28 4 A 0 35443 0.00 A 90754 D Common Stock 2019-02-28 4 F 0 10499 30.14 D 80255 D Vesting of performance shares awarded in 2016 under the Issuer's Long-term Incentive Plan. Shares withheld for taxes upon vesting of performance shares. Total includes (i) 8,737 time-based restricted stock units ("RSUs") previously awarded under the Issuer's Long-term Incentive Plan (the "Plan") and vesting in February 2020, (ii) 9,248 RSUs previously awarded under the Plan and vesting in February 2021, and (iii) 8,906 RSUs previously awarded under the Plan and vesting in February 2022. The award to vest in 2020 shall vest if the Reporting Person continues to be an employee of Issuer from grant date through vesting date and on a pro-rata basis in the event of her earlier retirement, disability or death. The above awards to vest in 2021 and 2022 shall vest (i) if she continues to be an employee of Issuer from grant date through vesting date and (ii) in the event of her disability or death. Also, the above awards to vest in 2021 and 2022 shall vest on a pro-rata basis in the event of her retirement unless she satisfies various conditions for full vesting. Vincent A. Mercaldi, Attorney-in-Fact 2019-03-04