<SEC-DOCUMENT>0000912938-18-000315-index.html : 20180209
<SEC-HEADER>0000912938-18-000315.hdr.sgml : 20180209
<ACCEPTANCE-DATETIME>20180209170653
ACCESSION NUMBER:		0000912938-18-000315
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180209
DATE AS OF CHANGE:		20180209

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DYNEGY INC.
		CENTRAL INDEX KEY:			0001379895
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				205653152
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83671
		FILM NUMBER:		18592765

	BUSINESS ADDRESS:	
		STREET 1:		601 TRAVIS, SUITE 1400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		(713) 507-6400

	MAIL ADDRESS:	
		STREET 1:		601 TRAVIS, SUITE 1400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Dynegy Inc..
		DATE OF NAME CHANGE:	20070404

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Dynegy Acquisition, Inc..
		DATE OF NAME CHANGE:	20070403

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Dynegy Acquisition, Inc.
		DATE OF NAME CHANGE:	20061102

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASSACHUSETTS FINANCIAL SERVICES CO /MA/
		CENTRAL INDEX KEY:			0000912938
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		18006372929

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>SEC13G_Filing.htm
<DESCRIPTION>SEC SCHEDULE 13G
<TEXT>
Document 1 - file: SEC13G_Filing.htm

</DOCUMENT>
</SEC-DOCUMENT>