X0306 4 2019-02-28 0 0001130310 CENTERPOINT ENERGY INC CNP 0001188744 CARROLL MILTON 1111 LOUISIANA HOUSTON TX 77002 1 1 0 0 Executive Chairman Common Stock 2019-02-28 4 A 0 108763 0.00 A 267784 D Common Stock 2019-02-28 4 F 0 42483 30.14 D 225301 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) 22,873 time-based restricted stock units ("RSUs") awarded under Issuer's Long-term Incentive Plan (the "Plan") and vesting in February 2020, (ii) 23,906 RSUs awarded under Plan and vesting in February 2021 and (iii) 23,742 RSUs awarded under Plan and vesting in February 2022. The award to vest in 2020 shall vest if Reporting Person continues to be an employee of Issuer from grant date through vesting date and on a pro-rata basis in event of his earlier retirement, disability or death. The awards to vest in 2021 and 2022 shall vest (i) if he continues to be an employee of Issuer from grant date through vesting date and (ii) in event of his disability or death. Also, the awards to vest in 2021 and 2022 shall vest on a pro-rata basis in event of his retirement unless he satisfies conditions for full vesting. For all above awards, Reporting Person is treated as currently retirement eligible. By Vincent A. Mercaldi, Attorney-in-Fact 2019-03-04