<SEC-DOCUMENT>0001193125-15-109585-index.html : 20150327
<SEC-HEADER>0001193125-15-109585.hdr.sgml : 20150327
<ACCEPTANCE-DATETIME>20150327165552
ACCESSION NUMBER:		0001193125-15-109585
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20150327
DATE AS OF CHANGE:		20150327

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENCORP INC
		CENTRAL INDEX KEY:			0000040888
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED RUBBER PRODUCTS, NEC [3060]
		IRS NUMBER:				340244000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-16268
		FILM NUMBER:		15731613

	BUSINESS ADDRESS:	
		STREET 1:		2001 AEROJET ROAD
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95742
		BUSINESS PHONE:		916-355-4000

	MAIL ADDRESS:	
		STREET 1:		2001 AEROJET ROAD
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95742

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GENERAL TIRE & RUBBER CO
		DATE OF NAME CHANGE:	19840330

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BlueMountain Capital Management, LLC
		CENTRAL INDEX KEY:			0001427430
		IRS NUMBER:				261523875
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		280 PARK AVENUE, 12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		(212) 905-3900

	MAIL ADDRESS:	
		STREET 1:		280 PARK AVENUE, 12TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>d900655dsc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: d900655dsc13g.htm

</DOCUMENT>
</SEC-DOCUMENT>