SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934
                               (Amendment No. 4)*

                                  Dynegy Inc.
                                (Name of Issuer)

                         Common Stock, Par Value $0.01
                         (Title of Class of Securities)

                                   26817G300
                                 (CUSIP Number)

                               Keith L. Schaitkin
                                Icahn Capital LP
                          767 Fifth Avenue, 47th Floor
                            New York, New York 10153
                                 (212) 702-4300

          (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                               November 15, 2010
            (Date of Event which Requires Filing of this Statement)
If  the filing person has previously filed a statement on Schedule 13G to report
the  acquisition  that  is  the subject of this Schedule 13D, and is filing this
schedule  because  of  Section 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check
the  following  box  /  /.

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to  whom  copies  are  to  be  sent.

*The  remainder  of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent  amendment  containing  information  which  would  alter
disclosures  provided  in  a  prior  cover  page.

The information required on the remainder of this cover page shall not be deemed
to  be  "filed"  for the purpose of Section 18 of the Securities Exchange Act of
1934  ("Act") or otherwise subject to the liabilities of that section of the Act
but  shall  be  subject  to  all  other  provisions of the Act (however, see the
Notes).





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      High  River  Limited  Partnership

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      2,399,999

8   SHARED  VOTING  POWER
      0

9   SOLE  DISPOSITIVE  POWER
      2,399,999

10  SHARED  DISPOSITIVE  POWER
      0

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       3,508,441 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      2.90%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Hopper  Investments  LLC

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      2,399,999

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      2,399,999

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       3,508,441 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      2.90%

14  TYPE  OF  REPORTING  PERSON
      OO





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Barberry  Corp.

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      2,399,999

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      2,399,999

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       3,508,441 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      2.90%

14  TYPE  OF  REPORTING  PERSON
      CO





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Partners  Master  Fund  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Cayman  Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      4,145,343

8   SHARED  VOTING  POWER
      0

9   SOLE  DISPOSITIVE  POWER
      4,145,343

10  SHARED  DISPOSITIVE  POWER
      0

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       6,065,433 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      5.02%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Partners  Master  Fund  II  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Cayman  Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      1,215,577

8   SHARED  VOTING  POWER
      0

9   SOLE  DISPOSITIVE  POWER
      1,215,577

10  SHARED  DISPOSITIVE  POWER
      0

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       1,755,671 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      1.45%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Partners  Master  Fund  III  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Cayman  Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      585,406

8   SHARED  VOTING  POWER
      0

9   SOLE  DISPOSITIVE  POWER
      585,406

10  SHARED  DISPOSITIVE  POWER
      0

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       854,675 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      0.71%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Offshore  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      5,946,326

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      5,946,326

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       8,675,779 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      7.18%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Partners  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      3,653,675

8   SHARED  VOTING  POWER
      0

9   SOLE  DISPOSITIVE  POWER
      3,653,675

10  SHARED  DISPOSITIVE  POWER
      0

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       5,357,992 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      4.43%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Onshore  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      3,653,675

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      3,653,675

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
      5,357,992 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      4.43%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Capital  LP

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      9,600,001

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      9,600,001

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
      14,033,771 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      11.61%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      IPH  GP  LLC

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      9,600,001

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      9,600,001

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       14,033,771 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      11.61%

14  TYPE  OF  REPORTING  PERSON
      OO





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Enterprises  Holdings  L.P.

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      9,600,001

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      9,600,001

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       14,033,771 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      11.61%

14  TYPE  OF  REPORTING  PERSON
      PN





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Icahn  Enterprises  G.P.  Inc.

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      9,600,001

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      9,600,001

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       14,033,771 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      11.61%

14  TYPE  OF  REPORTING  PERSON
      CO





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Beckton  Corp.

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS
      WC

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      9,600,001

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      9,600,001

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       14,033,771 (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      11.61%

14  TYPE  OF  REPORTING  PERSON
      CO





                                  SCHEDULE 13D

CUSIP No. 26817G300

1   NAME  OF  REPORTING  PERSON
      Carl  C.  Icahn

2   CHECK  THE  APPROPRIATE  BOX  IF  A  MEMBER  OF  A  GROUP
      (a) / /
      (b) / /

3   SEC  USE  ONLY

4   SOURCE  OF  FUNDS

5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(d)  or  2(e)     /  /

6   CITIZENSHIP  OR  PLACE  OF  ORGANIZATION
      United  States  of  America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
7   SOLE  VOTING  POWER
      0

8   SHARED  VOTING  POWER
      12,000,000

9   SOLE  DISPOSITIVE  POWER
      0

10  SHARED  DISPOSITIVE  POWER
      12,000,000

11  AGGREGATE  AMOUNT  BENEFICIALLY  OWNED  BY  EACH  REPORTING  PERSON
       17,542,212   (includes  Shares  underlying  call  options.  See  Item  5)

12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES    / /

13  PERCENT  OF  CLASS  REPRESENTED  BY  AMOUNT  IN  ROW  (11)
      14.51%

14  TYPE  OF  REPORTING  PERSON
      IN





                                  SCHEDULE 13D

Item 1. Security and Issuer

     The  Schedule  13D  filed  with  the  Securities and Exchange Commission on
October  8,  2010  by the Reporting Persons (the "Schedule 13D") with respect to
the  shares  of  Common  Stock, par value $0.01 (the "Shares"), issued by Dynegy
Inc.  (the "Issuer") and as amended by Amendment Number One, Amendment Number
Two and Amendment Number Three, is hereby further amended to furnish the
additional information set forth  herein.  All capitalized terms contained
herein but not otherwise defined shall  have  the  meanings  ascribed  to  such
terms  in  the  Schedule  13D.

Item 3. Source and Amount of Funds or Other Consideration

     Item  3  of  the  Schedule  13D  is  hereby  amended by replacing it in its
entirety  with  the  following:

     The  Reporting Persons hold, in the aggregate,  17,542,212  Shares
(including 5,542,212 Shares underlying call options. See Item 5). The aggregate
purchase price of the Shares (including the purchase price of call options)
purchased by the Reporting Persons collectively was $66.9 million (including
commissions and premiums for the options to purchase Shares). The source of
funding for the purchase was the general working capital of the respective
purchasers. The Shares are held by the Reporting Persons in margin accounts
together with other securities. Such margin accounts may  from time to time have
debit balances. Part of the purchase price of the Shares  purchased  by the
Reporting Persons was obtained through margin borrowing.


Item 5. Interest in Securities of the Issuer

     Item  5   of the Schedule 13D is hereby amended by replacing it in  its
entirety  with  the  following:

     (a)  The  Reporting  Persons  may  be  deemed  to  beneficially own, in the
aggregate,   17,542,212   Shares  (including  the  5,542,212  Shares underlying
call options),  representing  approximately 14.51% of the Issuer's outstanding
Shares (based  upon  the  120,894,257 Shares stated to be outstanding as of
November 1, 2010  by  the  Issuer  in  the  Issuer's Form 10-Q filed with the
Securities and Exchange  Commission  on  November  8,  2010).

     (b) High River has sole voting power and sole dispositive power with regard
to 2,399,999  Shares.  Each of Hopper, Barberry and Mr. Icahn has shared voting
power  and shared dispositive power with regard to such Shares. Icahn Master has
sole  voting  power  and sole dispositive power with regard to 4,145,343 Shares.
Each  of  Icahn  Offshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn
Enterprises  GP,  Beckton  and  Mr.  Icahn  has  shared  voting power and shared
dispositive  power  with  regard to such Shares. Icahn Master II has sole voting
power  and sole dispositive power with regard to 1,215,577 Shares. Each of Icahn
Offshore,  Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn Enterprises GP,
Beckton  and Mr. Icahn has shared voting power and shared dispositive power with
regard  to  such  Shares.  Icahn  Master  III  has  sole  voting  power and sole
dispositive  power  with regard to 585,406 Shares. Each of Icahn Offshore, Icahn
Capital,  IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr.
Icahn  has  shared voting power and shared dispositive power with regard to such
Shares.  Icahn  Partners  has  sole voting power and sole dispositive power with
regard  to  3,653,675  Shares.  Each of Icahn Onshore, Icahn Capital, IPH, Icahn
Enterprises  Holdings,  Icahn  Enterprises  GP, Beckton and Mr. Icahn has shared
voting  power  and  shared  dispositive  power  with  regard  to  such  Shares.

     Each of Hopper, Barberry and Mr. Icahn, by virtue of their relationships to
High  River  (as  disclosed in Item 2), may be deemed to indirectly beneficially
own  (as that term is defined in Rule 13d-3 under the Act) the Shares which High
River  directly  beneficially  owns.  Each  of  Hopper,  Barberry  and Mr. Icahn
disclaims  beneficial  ownership of such Shares for all other purposes.  Each of
Icahn  Offshore,  Icahn  Capital,  IPH,  Icahn  Enterprises  Holdings,  Icahn
Enterprises  GP, Beckton and Mr. Icahn, by virtue of their relationships to each
of  Icahn Master, Icahn Master II and Icahn Master III (as disclosed in Item 2),
may  be  deemed  to indirectly beneficially own (as that term is defined in Rule
13d-3  under the Act) the Shares which each of Icahn Master, Icahn Master II and
Icahn  Master  III  directly  beneficially  owns.  Each of Icahn Offshore, Icahn
Capital,  IPH, Icahn Enterprises Holdings, Icahn Enterprises GP, Beckton and Mr.
Icahn disclaims beneficial ownership of such Shares for all other purposes. Each
of  Icahn  Onshore,  Icahn  Capital,  IPH,  Icahn  Enterprises  Holdings,  Icahn
Enterprises GP, Beckton and Mr. Icahn, by virtue of their relationships to Icahn
Partners  (as disclosed in Item 2), may be deemed to indirectly beneficially own
(as  that  term  is  defined in Rule 13d-3 under the Act) the Shares which Icahn
Partners  directly beneficially owns. Each of Icahn Onshore, Icahn Capital, IPH,
Icahn  Enterprises  Holdings,  Icahn  Enterprises  GP,  Beckton  and  Mr.  Icahn
disclaims  beneficial  ownership  of  such  Shares  for  all  other  purposes.

 (c)  The following table sets forth all transactions with respect to Shares
effected  during  the  past  sixty  (60)  days  by any of the Reporting Persons,
inclusive of any transactions effected through 5:00 p.m., New York City time, on
November  15,  2010. Except as otherwise noted below, all such transactions were
purchases  of  Shares  effected  in  the  open  market,  and  the table includes
commissions  paid  in  per  share  prices.

Name of             Date              No. of Shares/      Purchase Price
Reporting           of                Options             per Share (US$)/
Person              Transaction       Purchased           Exercise Price
--------------      --------------    --------------      ----------------------
High River              09/27/2010      1,001,440                4.73
High River              09/28/2010        300,000                4.79
High River              09/28/2010        733,397                4.85
High River              09/29/2010        222,802                4.86
High River              09/30/2010        142,360                4.87
High River              11/10/2010         420,700 (1)           2.90 (2)
High River              11/11/2010         297,742 (1)           2.90 (2)
High River              11/15/2010         390,000 (1)           2.90 (2)

Icahn Partners          09/27/2010       1,524,556               4.73
Icahn Partners          09/28/2010         456,709               4.79
Icahn Partners          09/28/2010       1,116,498               4.85
Icahn Partners          09/29/2010         339,187               4.86
Icahn Partners          09/30/2010         216,725               4.87
Icahn Partners          11/10/2010         654,017 (1)           2.90 (2)
Icahn Partners          11/11/2010         454,703 (1)           2.90 (2)
Icahn Partners          11/15/2010         595,597 (1)           2.90 (2)

Icahn Master            09/27/2010       1,729,713               4.73
Icahn Master            09/28/2010         518,169               4.79
Icahn Master            09/28/2010       1,266,744               4.85
Icahn Master            09/29/2010         384,829               4.86
Icahn Master            09/30/2010         245,888               4.87
Icahn Master            11/10/2010          731,113 (1)          2.90 (2)
Icahn Master            11/11/2010          514,741 (1)          2.90 (2)
Icahn Master            11/15/2010          674,236 (1)          2.90 (2)

Icahn Master II         09/27/2010          507,220              4.73
Icahn Master II         09/28/2010          151,948              4.79
Icahn Master II         09/28/2010          371,459              4.85
Icahn Master II         09/29/2010          112,846              4.86
Icahn Master II         09/30/2010           72,104              4.87
Icahn Master II         11/10/2010          195,939 (1)          2.90 (2)
Icahn Master II         11/11/2010          148,994 (1)          2.90 (2)
Icahn Master II         11/15/2010          195,161 (1)          2.90 (2)

Icahn Master III        09/27/2010          244,271              4.73
Icahn Master III        09/28/2010           73,174              4.79
Icahn Master III        09/28/2010          178,889              4.85
Icahn Master III        09/29/2010           54,348              4.86
Icahn Master III        09/30/2010           34,724              4.87
Icahn Master III        11/10/2010          101,731 (1)          2.90 (2)
Icahn Master III        11/11/2010           72,532 (1)          2.90 (2)
Icahn Master III        11/15/2010           95,006 (1)          2.90 (2)
_________________________
(1)  Shares  underlying  American-style call options purchased by the applicable
     Reporting  Person,  which  expire  on  November  10,  2012.
(2)  Per  share  exercise  price  of  call  options  purchased  by the Reporting
     Persons.  Exercise  price  will be adjusted to account for any dividends or
     other  distributions  declared  by  the  Issuer  prior  to  exercise of the
     options.  The  premium  for  such call options was approximately 35% of the
     market  price.

Item 6. Contracts, Arrangements, Understandings or Relationship with Respect to
        Securities of the Issuer

     Item  6  of  the  Schedule  13D  is  hereby  amended by replacing it in its
entirety  with  the  following:

Call Options
------------
     The  Reporting  Persons  have  purchased  American-style  call  options
referencing an aggregate of 5,542,212 Shares, which expire on November 10, 2012.
The agreements provide for physical settlement (unless the Reporting Person opts
for  a  cash  settlement).  These  agreements  do not give the Reporting Persons
direct  or indirect voting, investment or dispositive control over the Shares to
which  these  agreements  relate. These agreements are further described in Item
5(c).

Put Options
-----------
     The  Reporting  Persons have sold European-style put options referencing an
aggregate of 5,542,212 Shares, which expire on November 10, 2012. The agreements
provide  that  they  settle  in cash. These agreements do not give the Reporting
Persons  direct  or  indirect voting, investment or dispositive control over the
Shares  to  which  these  agreements  relate.

     Except as otherwise described herein, there are no contracts, arrangements,
understandings  or relationships (legal or otherwise) among the persons named in
Item 2 and between such persons and any person with respect to any securities of
the  Issuer,  including  but  not  limited  to  transfer or voting of any of the
securities,  finder's fees, joint ventures, loan or option arrangements, puts or
calls,  guarantees  of  profits,  division  of profits or loss, or the giving or
withholding  of  proxies.





                                   SIGNATURE

     After  reasonable  inquiry  and  to  the  best  of  each of the undersigned
knowledge and belief, each of the undersigned certifies that the information set
forth  in  this  statement  is  true,  complete  and  correct.

Dated:  November  15,  2010


ICAHN  PARTNERS  MASTER  FUND  LP
ICAHN  PARTNERS  MASTER  FUND  II  LP
ICAHN  PARTNERS  MASTER  FUND  III  LP
ICAHN  OFFSHORE  LP
ICAHN  PARTNERS  LP
ICAHN  ONSHORE  LP
BECKTON  CORP.
HOPPER  INVESTMENTS  LLC
BARBERRY  CORP.
HIGH  RIVER  LIMITED  PARTNERSHIP
     By:  Hopper  Investments  LLC,  general  partner


     By:  /s/  Edward  E.  Mattner
          ------------------------
          Name:  Edward  E.  Mattner
          Title:  Authorized  Signatory


ICAHN  CAPITAL  LP
     By:  IPH  GP  LLC,  its  general  partner
     By:  Icahn  Enterprises  Holdings  L.P.,  its  sole  member By:  Icahn
Enterprises  G.P.  Inc.,  its  general  partner
IPH  GP  LLC
     By:  Icahn  Enterprises  Holdings  L.P.,  its  sole  member By:  Icahn
Enterprises  G.P.  Inc.,  its  general  partner
ICAHN  ENTERPRISES  HOLDINGS  L.P.
     By:  Icahn  Enterprises  G.P.  Inc.,  its  general  partner ICAHN
ENTERPRISES  G.P.  INC.


     By:  /s/ Daniel  Ninivaggi
          ---------------------
          Name:  Daniel  Ninivaggi
          Title:  President






/s/  Carl  C.  Icahn
--------------------
CARL  C.  ICAHN






         [Signature Page of Schedule 13D Amendment No. 4 - Dynegy Inc.]