<SEC-DOCUMENT>0001193125-16-447561-index.html : 20160202
<SEC-HEADER>0001193125-16-447561.hdr.sgml : 20160202
<ACCEPTANCE-DATETIME>20160202152902
ACCESSION NUMBER:		0001193125-16-447561
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20160202
DATE AS OF CHANGE:		20160202

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEROJET ROCKETDYNE HOLDINGS, INC.
		CENTRAL INDEX KEY:			0000040888
		STANDARD INDUSTRIAL CLASSIFICATION:	GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
		IRS NUMBER:				340244000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-16268
		FILM NUMBER:		161380629

	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:	GENCORP INC
		DATE OF NAME CHANGE:	19920703

	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/A

	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/A
<SEQUENCE>1
<FILENAME>d47100dsc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: d47100dsc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>