X0306 4 2017-02-18 0 0001130310 CENTERPOINT ENERGY INC CNP 0001618940 Colvin Kristie 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 SVP and CAO Common Stock 2017-02-18 4 F 0 392 26.51 D 33156 D Common Stock 44 I By Savings Plan Common Stock 145 I By son Shares withheld for taxes upon vesting of performance shares. Total includes (i) 2,480 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2018, and (ii) 3,307 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2019. 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 pro-rata basis in the event of her earlier retirement, disability or death. Equivalent shares held in CenterPoint Energy, Inc. Savings Plan. Vincent A. Mercaldi, Attorney-in-Fact 2017-02-22