Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  HACKENSON ELIZABETH
2. Date of Event Requiring Statement (Month/Day/Year)
06/29/2012
3. Issuer Name and Ticker or Trading Symbol
AES CORP [AES]
(Last)
(First)
(Middle)
4300 WILSON BOULEVARD
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. VP and CIO
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ARLINGTON, VA 22203
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 26,828 (1)
D
 
Common Stock 5,565 (2)
I
401(k)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   (3) 02/20/2019 Common Stock 43,605 $ 6.71 D  
Stock Option (Right to Buy)   (4) 02/19/2020 Common Stock 23,257 $ 12.18 D  
Stock Option (Right to Buy)   (5) 02/18/2021 Common Stock 28,108 $ 12.88 D  
Stock Option (Right to Buy)   (6) 02/17/2022 Common Stock 32,013 $ 13.7 D  
Units   (7)   (7) Common Stock 2,626 $ (7) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
HACKENSON ELIZABETH
4300 WILSON BOULEVARD
ARLINGTON, VA 22203
      Sr. VP and CIO  

Signatures

Elizabeth Hackenson 07/05/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This amount represents two separate restricted stock unit awards ("RSUs") which were granted pursuant to The AES Corporation 2003 Long Term Compensation Plan. Vesting for these RSUs occurs in three equal annual installments if certain continuing employment conditions are satisfied. If such conditions are satisfied, each RSU entitles the holder to one share of AES Common Stock for each RSU granted. Included are awards granted on February 18, 2011 (5,577 shares) and February 17, 2012 (8,085 shares). Also included are vested units (11,393) and shares held outright (1,773).
(2) As of July 3, 2012.
(3) These stock options are fully exercisable.
(4) These stock options vest in three equal annual installments. The first installment became exercisable on February 19, 2011, the next installment became exercisable on February 19, 2012, and the final installment will become exercisable on February 19, 2013.
(5) These stock options vest in three equal annual installments. The first installment became exercisable on February 18, 2012, and the next two installments will become exercisable on February 18, 2013 and February 18, 2014, respectively.
(6) These stock options vest in three equal annual installments. The installments will become exercisable on February 17, 2013, February 17, 2014 and February 17, 2015, respectively.
(7) These units are awarded pursuant to the Restoration Retirement Plan (the "Plan"). Generally, units under the Plan are paid out following termination of employment or later as per the terms of the Plan document. Each unit is equal to the value of one share of AES Common Stock, and units under the Plan are 100% vested upon award.

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