X0306 4 2018-02-22 0 0001130310 CENTERPOINT ENERGY INC CNP 0001698758 Vortherms Joseph John 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 Senior VP Common Stock 2018-02-22 4 A 0 1709 0.00 A 13196 D Common Stock 2018-02-22 4 F 0 508 27.00 D 12688 D Common Stock 10596 I By Savings Plan Vesting of performance shares awarded in 2015 under the Issuer's Long-term Incentive Plan. Shares withheld for taxes upon vesting of performance shares. Total includes (i) 1,775 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2019, (ii) 2,537 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2020, and (iii) 3,519 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2021. Each award shall vest if the Reporting Person continues to be an employee of Issuer from the grant date through the vesting date and on a prorata basis in the event of his earlier retirement, disability or death. Equivalent shares held in CenterPoint Energy, Inc. Savings Plan. Vincent A. Mercaldi, Attorney-in-Fact 2018-02-26