X0306 4 2015-02-22 0 0001130310 CENTERPOINT ENERGY INC CNP 0001618940 Colvin Kristie 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 SVP and CAO Common Stock 2015-02-22 4 A 0 1100 0.00 A 27485 D Common Stock 2015-02-22 4 F 0 360 21.73 D 27125 D Common Stock 40 I By Savings Plan Vesting of restricted stock units awarded in 2012 under the Issuer's Long-term Incentive Plan. Shares withheld for taxes upon vesting of time-based restricted stock units. Total includes (i) 1,200 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2017 and (ii) 2,480 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2018. 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 as of 1/31/2015. Vincent A. Mercaldi Attorney-in-Fact 2015-02-24