X0306 4 2015-02-19 0 0001130310 CENTERPOINT ENERGY INC CNP 0001268627 ORTENSTONE SUSAN B 1111 LOUISIANA HOUSTON TX 77002 0 1 0 0 SVP and Chief HR Officer Common Stock 2015-02-19 4 A 0 4830 0.00 A 8570 D Time-based restricted stock units vesting in February 2018 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. Total includes 3,740 time-based restricted stock units previously awarded under the Issuer's Long-term Incentive Plan and vesting in February 2017 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. Vincent A. Mercaldi Attorney-in-Fact 2015-02-23