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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1. Name and Address of Reporting Person * Alonso Mario E   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 __X__ Officer (give title below) _____ Other (specify below) VP-Strategic Planning & Dev (Last) (First) (Middle) 601 TRAVIS, 14TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 10/01/2012 (Street) HOUSTON, TX 77002 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   J(1)   9,980 (2) D (1) 0 D   Common Stock 10/01/2012   J(1)   27 (3) A (1) 27 (3) D

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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
Employee Stock Option (Right to Buy)	$ 22.4	10/01/2012		J(1)			670	(1)	(1)	Common Stock	670	$ 0	0	D
Employee Stock Option (Right to Buy)	$ 21.5	10/01/2012		J(1)			710	(1)	(1)	Common Stock	710	$ 0	0	D
Employee Stock Option (Right to Buy)	$ 37.4	10/01/2012		J(1)			2,148	(1)	(1)	Common Stock	2,148	$ 0	0	D
Employee Stock Option (Right to Buy)	$ 5.65	10/01/2012		J(1)			17,273	(1)	(1)	Common Stock	17,273	$ 0	0	D
Employee Stock Option (Right to Buy)	$ 7.2	10/01/2012		J(1)			11,294	(1)	(1)	Common Stock	11,294	$ 0	0	D
Common Stock Warrants (Right to Buy)	$ 40	10/01/2012		J(1)		421 (3)		10/03/2012	10/02/2017	Common Stock	421 (3)	(1)	421 (3)	D
Phatom Stock Units	(4)	10/01/2012		J(1)			28,250	(1)	(1)	Common Stock	28,250	$ 0	0	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Alonso Mario E 601 TRAVIS 14TH FLOOR HOUSTON, TX 77002			VP-Strategic Planning & Dev

Signatures

/s/ Heidi D. Lewis, Attorney-in-Fact		10/03/2012
**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)	Pursuant to the Joint Chapter 11 Plan of Reorganization (the "Plan") for Dynegy Holdings, LLC and Dynegy Inc. (the "Company"), which was confirmed by the United States Bankruptcy Court for the Southern District of New York, Poughkeepsie Division on September 10, 2012 and became effective on October 1, 2012 (the "Effective Date"), (i) all outstanding shares of capital stock and other equity rights, including shares of common stock, employee stock options, phantom stock awards and stock appreciation rights in the Company outstanding prior to the Effective Date, were cancelled, (ii) new shares of common stock of the reorganized Company ("New Common Stock") were issued to the former holders of common stock in the Company as of the Effective Date on an approximately 123-for-one basis, and (iii) warrants to purchase shares of New Common Stock were issued to the former holders of common stock in the Company as of the Effective Date under the Plan on an approximately 8-for-one basis.
(2)	Includes 6,666 shares of restricted stock which would vest in full on March 3, 2013.
(3)	Reflects the issuance of 27 shares of New Common Stock and 421 warrants based on the Reporting Person's holdings of 3,314 shares of common stock in the Company prior to the Effective Date.
(4)	These shares are deemed to be phantom stock units that are convertible on a one-for-one basis and payable solely in cash.

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