X0306 4 2018-02-19 0000874761 AES CORP AES 0001628839 Mendoza Tish 4300 WILSON BOULEVARD ARLINGTON VA 22203 1 Sr. VP & Chief HR Officer Common Stock 2018-02-19 4 F 0 1573 10.45 D 54288 D Common Stock 2018-02-20 4 F 0 1053 10.40 D 53235 D Common Stock 22603 I by 401(k) Reflects tax withholding in connection with the vesting and settlement of one-third of the Restricted Stock Units ("RSUs") granted February 19, 2016. There was no transaction in the market. Reflects tax withholding in connection with the vesting and settlement of one-third of the RSUs granted February 20, 2015. There was no transaction in the market. Since the last Form 4 filing on February 28, 2017, the reporting person acquired 985 additional shares of AES Common Stock pursuant to The AES Corporation Retirement Savings Plan. The information in this report is based on a plan statement dated February 21, 2018. /s/ Letitia (Tish) D. Mendoza 2018-02-21