Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
MERKSAMER SAMUEL J.
  2. Issuer Name and Ticker or Trading Symbol
DYNEGY INC. [DYN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
please see remarks
(Last)
(First)
(Middle)
C/O ICAHN CAPITAL LP, 767 FIFTH AVENUE, SUITE 4700
3. Date of Earliest Transaction (Month/Day/Year)
09/28/2012
(Street)

NEW YORK, NY 10153
4. If Amendment, Date Original Filed(Month/Day/Year)
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 10/01/2012   M   123,411.49 A (1) 123,411.49 D  
Common Stock 10/01/2012   D   123,411.49 D $ 0.38 0 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Phantom Stock (2) 09/28/2012   A   46,052.63 (3)     (4)   (4) Common Stock 46,052.63 (3) 123,411.49 D  
Phantom Stock (1) 10/01/2012   M     123,411.49   (1)   (1) Common Stock 123,411.49 (1) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MERKSAMER SAMUEL J.
C/O ICAHN CAPITAL LP
767 FIFTH AVENUE, SUITE 4700
NEW YORK, NY 10153
      please see remarks

Signatures

 SAMUEL J. MERKSAMER   10/02/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) Each share of phantom stock was the economic equivalent of one share of Dynegy Inc. common stock. On October 1, 2012, 123,411.49 of the Reporting Person's shares of phantom stock held under the Dynegy Inc. Deferred Compensation Plan for Certain Directors, as amended, a Rule 16b-3 Plan with the issuer (the "Deferred Compensation Plan"), were settled for cash in accordance with the terms of the Deferred Compensation Plan after termination of service as a director.
(2) These shares are deemed to be phantom stock that are convertible on a one-for-one basis and payable solely in cash.
(3) Reflects shares of phantom stock issued to the Reporting Person pursuant to Deferred Compensation Plan. The shares of phantom stock were issued in connection with the Reporting Person's director compensation for the third quarter of 2012, and the number of shares of phantom stock issued with respect to the quarter was calculated based on the closing stock price of the issuer's common stock of $.38 on September 28, 2012, the last trading day of the quarter.
(4) Upon termination of the Reporting Person's service as a director, the shares of phantom stock become payable, at the election of the Reporting Person, in a lump sum payment or in monthly, quarterly or annual installment payments following such termination. The shares of phantom stock are payable in cash.
 
Remarks:
On September 30, 2012, the Reporting Person resigned as a director of the Company.

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