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) EVP-Strategic Planning & Dev (Last) (First) (Middle) 601 TRAVIS, 14TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 03/03/2015 (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 03/03/2015(1)   A(2)   7,710 A $ 0 21,570 D   Common Stock 03/03/2015   F(3)   656 D $ 27.24 (4) 20,914 (5) 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)

$ 27.24

03/03/2015(6)

A

19,060

(7)

03/03/2025

Common Stock

19,060

$ 0

19,060

D

Reporting Owners

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

Signatures

/s/ Heidi D. Lewis, Attorney-in-Fact		03/05/2015
**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)	The grants of the restricted stock units were approved by a committee of the Issuer's Board of Directors on March 3, 2015.
(2)	Restricted stock unit grant pursuant to Rule 16b-3(d). Each restricted stock unit represents a contingent right to receive one share of Dynegy Inc. common stock. The restricted stock units vest in three annual equal installments beginning on March 3, 2016.
(3)	These restricted stock units were withheld by Issuer to pay the taxes applicable to the vesting of 2,027 units of restricted stock on March 3, 2015.
(4)	Reflects closing stock price on March 3, 2015.
(5)	Amount includes 1,357 restricted stock units that vest on October 29, 2015, 3,247 restricted stock units that vest in two annual equal installments beginning on March 18, 2015, 4,053 restricted stock units that vest in two annual equal installments beginning on March 3, 2016 and 7,710 restricted stock units that vest in three annual equal installments beginning on March 3, 2016.
(6)	The grants of the stock options were approved by a committee of the Issuer's Board of Directors on March 3, 2015.
(7)	Option grant pursuant to rule 16b-3(d). The option becomes exercisable in three annual equal installments beginning March 3, 2016.

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