UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 21, 2015

GenCorp Inc.
(Exact name of registrant as specified in its charter)
Delaware	1-01520	34-0244000
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)
2001 Aerojet Road, Rancho Cordova, California		95742
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (916) 355-4000

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01 Other Events.

On April 21, 2015, GenCorp Inc. (the “Company”) issued a press release announcing that effective April 27, 2015, the Company’s name will change to “Aerojet Rocketdyne Holdings, Inc.” and the trading symbol of the Company’s common stock on the New York Stock Exchange will change from “GY” to “AJRD,” upon the commencement of trading on April 27, 2015.  Stockholders will not need to exchange their stock certificates in connection with the change of the Company’s name or trading symbol. A copy of the press release is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d)           Exhibits

Exhibit No. Exhibits

99.1 Press release, dated April 21, 2015.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

April 23, 2015	GENCORP INC.
	By:	/s/ Kathleen E. Redd
		Name:	Kathleen E. Redd
		Title:	Vice President, Chief Financial Officer and Assistant Secretary