X0306 4 2018-02-19 0000874761 AES CORP AES 0001720952 Blake Sarah 4300 WILSON BLVD. ARLINGTON VA 22203 1 Vice President & Controller Common Stock 2018-02-19 4 F 0 872 10.45 D 13672 D Common Stock 2018-02-20 4 F 0 418 10.40 D 13254 D Common Stock 1556 I by 401(k) Common Stock 2500 I by Spouse 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 3 filing on November 8, 2017, the reporting person acquired 36 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/ Sarah Blake 2018-02-21