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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="right" style="font-size: 10pt; margin-top: 12pt">File No.&nbsp;333-_____
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 0pt">As filed
with the Securities and Exchange Commission on June 30, 2008.
<DIV align="center" style="font-size: 0pt; margin-top: 6pt">&nbsp;
</DIV></DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>

<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B><BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>GenCorp Inc.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact Name of Registrant as Specified in Its Charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top">Ohio<BR>
(State or Other Jurisdiction <BR>
of Incorporation or Organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">34-0244000<BR>
(I.R.S. Employer<BR>
Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Highway 50 and Aerojet Road<BR>
Rancho Cordova, CA 95742<BR>
(Address of Principal Executive Offices)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>GenCorp Retirement Savings Plan</B><BR>
(Full Title of the Plan)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Mark A. Whitney<BR>
Senior Vice President, General Counsel and Secretary<BR>
Highway 50 and Aerojet Road<BR>
Rancho Cordova, CA 95742<BR>
(Name and Address of Agent for Service)<BR>
<DIV align="center" style="font-size: 0pt; margin-top: 12pt">&nbsp;
</DIV>
(916)&nbsp;355-4000<BR>
(Telephone Number, Including Area Code, of Agent for Service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">with a copy to:</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">Jeffrey B. Grill, Esq.<BR>
Pillsbury Winthrop Shaw Pittman LLP<BR>
2300 N Street, NW<BR>
Washington, DC 20037<BR>
(202)&nbsp;663-8000</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large
accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the
Exchange Act. (Check one):
</DIV>





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<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD align="center" valign="top">Large accelerated filer <FONT face="Wingdings">&#254;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Accelerated filer <FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Non-accelerated filer <FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>Smaller reporting company <FONT face="Wingdings">&#111;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>(Do not check if a smaller reporting company)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>
<DIV align="center" style="font-size: 10pt; margin-top: 18pt">CALCULATION OF REGISTRATION FEE
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="34%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="23%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Proposed Maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Proposed Maximum</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">Title of Securities</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Amount to be</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Offering Price</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Aggregate Offering</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Amount of</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">to be Registered (1)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Registered (2)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Per Share (3)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Price (3)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">Registration Fee</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $0.10
par value per share</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">5,000,000 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$7.44</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$37,200,000</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$1,462</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 3pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule 416(c) under the Securities Act of 1933, this Registration Statement also
covers an indeterminate amount of interests to be offered or sold pursuant to the employee
benefit plan described herein.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>This Registration Statement shall also cover any additional shares of Common Stock which
become issuable under the GenCorp Retirement Savings Plan by reason of any stock dividend,
stock split, recapitalization or other similar transaction effected without the receipt of
consideration which results in an increase in the number of the Registrant&#146;s outstanding
shares of Common Stock.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(3)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of computing the registration fee in accordance with Rule
457(h)(1) and Rule&nbsp;457(c), based on the average of the high and
low sales price on June&nbsp;25,
2008, as reported by the New York Stock Exchange.</TD>
</TR>

</TABLE>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>INTRODUCTORY STATEMENT</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Registration Statement on Form S-8 is being filed by GenCorp Inc. (the &#147;Registrant&#148;) for
the purpose of registering an additional 5,000,000 shares of the Registrant&#146;s common stock, par
value $0.10 per share (&#147;Common Stock&#148;), issued in the GenCorp Stock Fund pursuant to the GenCorp
Retirement Savings Plan (the &#147;Plan&#148;).
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;6. Indemnification Of Directors And Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#008">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="f41736exv4w1.htm">EXHIBIT 4.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f41736exv5w1.htm">EXHIBIT 5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f41736exv23w1.htm">EXHIBIT 23.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f41736exv23w2.htm">EXHIBIT 23.2</A></TD></TR>
<TR><TD colspan="9"><A HREF="f41736exv24w1.htm">EXHIBIT 24.1</A></TD></TR>
</TABLE>
</CENTER>
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<!-- link1 "PART II" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>

</DIV>
<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents, which are on file with the Commission, are incorporated herein by
this reference and made a part hereof:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Annual Report on Form 10-K for its fiscal year ended November
30, 2007, filed with the Commission on January 25, 2007, pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of
1934, as amended (the &#147;Exchange Act&#148;);</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>GenCorp Retirement Savings Plan&#146;s Annual Report on Form 11-K for the year ended
December&nbsp;31, 2007, filed with the Commission on June&nbsp;30,
2008;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Quarterly Report on Form 10-Q for the quarter ended February
29, 2008, filed with the Commission on March 26, 2008 pursuant to the Exchange Act;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Current Reports on Form 8-K filed on December&nbsp;14, 2007 and
January&nbsp;24, March&nbsp;10, March&nbsp;17, April&nbsp;8, May 1 and May&nbsp;20, 2008 pursuant to the Exchange Act; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(e)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Registrant&#146;s capital stock contained its Registration
Statement on Form&nbsp;10 dated May&nbsp;20, 1935, as amended by Amendment No.&nbsp;1 on Form&nbsp;8, dated
March&nbsp;29, 1989 (File No.&nbsp;1-1520).</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
15(d) of the Exchange Act prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which de-registers all securities then remaining unsold
shall be deemed to be incorporated by reference herein and to be a part hereof from the date of
filing of such reports and documents. Any statement contained in a document incorporated or deemed
to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of
this Registration Statement to the extent that a statement contained in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or supersedes such
statement.
</DIV>
<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Not applicable.
</DIV>

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The validity of the Common Stock and participation interests offered hereby has been passed upon by
Mark A. Whitney, Esq., Senior Vice President, General Counsel and
Secretary, of the Registrant. As of
the date of this Registration Statement, Mr.&nbsp;Whitney beneficially owns shares of Common Stock and
options to purchase shares of Common Stock and is a participant in the GenCorp Retirement Saving
Plan.
</DIV>

<!-- link2 "Item&nbsp;6. Indemnification Of Directors And Officers" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification Of Directors And Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><I>Applicable Laws of Ohio</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Section&nbsp;1701.13(E) of the Ohio General Corporation Law authorizes a corporation under certain
circumstances to indemnify any director, trustee, officer, employee or agent in respect of expenses
and other costs reasonably incurred by him in connection with any action, suit or proceeding to
which he is made a party or threatened to be made a party by reason of the fact that he was a
director, trustee, officer, employee or agent of the corporation. In general, indemnification is
permissible only if the person acted in good faith and in a manner he reasonably believed to be in
or not opposed to the best interests of the corporation, and in any criminal proceeding, had no
reasonable cause to believe his conduct was unlawful. In respect of any action by or in right of
the corporation, indemnification is not permitted if the person is adjudged liable for negligence
or misconduct in the performance of his duty to the corporation unless authorized by a court. To the extent that a director, trustee, officer, employee
or agent has been successful in the defense of any such action, suit or proceeding, he is entitled
to be indemnified against his reasonable expenses incurred in connection therewith by Section
1701.13(E)(3) of the Ohio General Corporation Law.
</DIV>



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<DIV style="font-family: 'Times New Roman',Times,serif">




<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Code of Regulations</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Article&nbsp;Two,
Section&nbsp;10 of the Code of Regulations of the Registrant concerns indemnification of the
company&#146;s directors and officers and provides as follows:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Corporation shall indemnify, to the full extent then permitted by law, any person who was or is
a party or is threatened to be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he
is or was a member of the Board of Directors or an officer, employee, member, manager or agent of
the Corporation, or is or was serving at the request of the Corporation as a director, trustee,
officer, employee or agent of another corporation, limited liability company, or a partnership,
joint venture, trust or other enterprise. The Corporation shall pay, to the full extent then
required by law, expenses, including attorney&#146;s fees, incurred by a member of the Board of
Directors in defending any such action, suit or proceeding as they are incurred, in advance of the
final disposition thereof, and may pay, in the same manner and to the full extent then permitted by
law, such expenses incurred by any other person. The indemnification and payment of expenses
provided hereby shall not be exclusive of, and shall be in addition to, any other rights granted to
those seeking indemnification under any law, the Articles of Incorporation, any agreement, vote of
shareholders or disinterested members of the Board of Directors, or otherwise, both as to action in
official capacities and as to action in another capacity while he or she is a member of the Board
of Directors, or an officer, employee or agent of the Corporation, and shall continue as to a
person who has ceased to be a member of the Board of Directors, trustee, officer, employee or agent
and shall inure to the benefit of the heirs, executors, and administrators of such a person.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Corporation may, to the full extent then permitted by law and authorized by the Board of
Directors, purchase and maintain insurance or furnish similar protection, including but not limited
to trust funds, letters of credit or self-insurance, on behalf of or for any persons described in
the preceding paragraph against any liability asserted against and incurred by any such person in
any such capacity, or arising out of his status as such, whether or not the Corporation would have
the power to indemnify such person against such liability. Insurance may be purchased from or
maintained with a person in which the Corporation has a financial interest.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Corporation, upon approval by the Board of Directors, may enter into agreements with any
persons whom the Corporation may indemnify under this Code of Regulations or under law and
undertake thereby to indemnify such persons and to pay the expenses incurred by them in defending
any action, suit or proceeding against them, whether or not the Corporation would have the power
under law or this Code of Regulations to indemnify any such person.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><I>Contracts</I>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Registrant maintains and pays the premiums on contracts insuring the directors and officers of
the company and its subsidiaries (subject to the policy&#146;s terms, conditions and exclusions) for
liability that the directors and officers, or the company or its subsidiaries (in certain
situations), may incur in performing their directorship or officership duties. The insurance
contract provides coverage for loss, including defense expense, even in the absence of indemnity by
the corporation to the individual director or officer.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The Registrant has entered into indemnification agreements with all of its directors and executive
officers to indemnify them against certain liabilities and expenses, including legal fees, that
they may incur by reason of their relationship to the company. In general, the company is required
to indemnify an individual who is a director or an officer for such liabilities and expenses unless
(i)&nbsp;if the person is a director, it is proved by clear and convincing evidence that his or her
action or failure to act involved an act or omission undertaken with deliberate intent to cause
injury to the company or undertaken with reckless disregard for the best interests of the company,
subject to certain exceptions, or (ii)&nbsp;if the person is an executive officer only, he or she did
not act in good faith or in a manner that he or she reasonably believed to be in or not opposed to
the best interests of the company, subject to certain exceptions. In addition, each director and
officer is to be indemnified against any amount that he or she becomes obligated to pay relating to
or arising out of any claim made against him or her because of any act or failure to act or neglect
or breach of duty that he or she commits or permits while acting as a director or officer of the
company, subject to certain exceptions. In respect of any criminal proceeding, the company is
required to indemnify each director and officer if such person had no reasonable cause to believe
his or her conduct was unlawful. Each director and officer will also be indemnified for expenses actually and reasonably incurred by him or her to the extent
that such individual is successful on the merits in any action.
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Not applicable.
</DIV>

<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">The following exhibits are filed as part of this Registration:
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left">Exhibit Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">Description of Exhibit</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GenCorp Retirement Savings Plan (filed herewith)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Mark A. Whitney, Esq., Senior Vice
President, General Counsel and Secretary (filed
herewith)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP (filed herewith)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young LLP (filed herewith)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (filed herewith)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">The Registrant hereby undertakes that it has submitted the Plan and
will submit any amendments thereto to the Internal Revenue Service
(&#147;IRS&#148;) in a timely manner and has made and will make all changes
required by the IRS to qualify the Plan.
</DIV>
<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned Registrant hereby undertakes:
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) To file, during any period in which offers or sales of the securities registered
hereby are being made, a post-effective amendment to the registration statement: (i)&nbsp;to
include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of 1933 (the &#147;Act&#148;);
(ii)&nbsp;to reflect in the prospectus any facts or events arising after the effective date of the
registration statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set forth
in the registration statement; notwithstanding the foregoing, any increase or decrease in
volume of securities offered (if the total dollar value of securities offered would not exceed
that which was registered) and any deviation from the low or high end of the estimated maximum
offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule
424(b), if, in the aggregate, the changes in volume and price represent no more than 20
percent change in the maximum aggregate offering price set forth in the &#147;Calculation of
Registration Fee&#148; table in the effective registration statement; and (iii)&nbsp;to include any
material information with respect to the plan of distribution not previously disclosed in the
registration statement or any material change to such information in the registration
statement, <I>provided</I>, <I>however</I>, that clauses (i)&nbsp;and (ii)&nbsp;do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the SEC by the Registrant pursuant to Section&nbsp;13 or
Section 15(d) of the Exchange Act that are incorporated by reference in this registration
statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 2%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) That, for purposes of determining any liability under the Act, each filing of the
Registrant&#146;s annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act that
is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Insofar as indemnification for liabilities arising under the Act may be permitted to
directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions,
or otherwise, the Registrant has been advised that in the opinion of the Commission such
indemnification is against public policy as expressed in the Act and is, therefore unenforceable.
In the event that a claim for indemnification against such liabilities (other than the payment by
the Registrant of expenses incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether such indemnification
by it is against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
</DIV>
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>The Registrant</B>. Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in Rancho Cordova,
California, on this 30th day of June
2008.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">GENCORP INC.,<BR>
An Ohio corporation<BR>
(Registrant)<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Yasmin R. Seyal
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Yasmin R. Seyal&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left" nowrap>Senior Vice President and Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed below by the following persons in the capacities and on the dates indicated.
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">&#091;Signature Page Follows&#093;
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="25%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="25%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="25%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Date</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ J. Scott Neish
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
J. Scott Neish
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" nowrap>Interim President and Chief Executive Officer<BR>
(principal executive officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Yasmin R. Seyal
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Yasmin R. Seyal
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" nowrap>Senior Vice President and Chief Financial Officer<BR>

(principal financial officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ R. Leon Blackburn
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
R. Leon Blackburn
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Vice President and Controller<BR>

(principal accounting officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/s/ *
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James R. Henderson
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman of the Board of Directors&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Warren G. Lichtenstein
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/s/ *
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
David A. Lorber
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/s/ *
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James H. Perry
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/s/ *
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Martin Turchin
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Robert C. Woods
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">*/s/ Yasmin R. Seyal
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Yasmin R. Seyal
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Attorney-in-Fact pursuant to
Power of Attorney filed herewith
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">June 30, 2008</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>The Plan. </B>Pursuant to the requirements of the Securities Act of 1933, GenCorp Inc., as plan
administrator, has duly caused the Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in Rancho Cordova, California
on the 30th day of June,
2008.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">GENCORP RETIREMENT SAVINGS PLAN<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Yasmin R. Seyal
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Yasmin R. Seyal&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Senior Vice President and Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
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    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left">Exhibit Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">Description of Exhibit</TD>
</TR>

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    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">GenCorp Retirement Savings Plan (filed herewith)</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Mark A. Whitney, Esq., Senior Vice President,
General Counsel and Secretary (filed herewith)</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP (filed herewith)</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young LLP (filed herewith)</TD>
</TR>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
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    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney (filed herewith)</TD>
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sv8
Table of Contents
File No. 333-_____
As filed
with the Securities and Exchange Commission on June 30, 2008.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
GenCorp Inc.
(Exact Name of Registrant as Specified in Its Charter)
Ohio
(State or Other Jurisdiction
of Incorporation or Organization)
34-0244000
(I.R.S. Employer
Identification No.)
Highway 50 and Aerojet Road
Rancho Cordova, CA 95742
(Address of Principal Executive Offices)
GenCorp Retirement Savings Plan
(Full Title of the Plan)
Mark A. Whitney
Senior Vice President, General Counsel and Secretary
Highway 50 and Aerojet Road
Rancho Cordova, CA 95742
(Name and Address of Agent for Service)
(916) 355-4000
(Telephone Number, Including Area Code, of Agent for Service)
with a copy to:
Jeffrey B. Grill, Esq.
Pillsbury Winthrop Shaw Pittman LLP
2300 N Street, NW
Washington, DC 20037
(202) 663-8000
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated
filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large
accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the
Exchange Act. (Check one):
Large accelerated filer
þ
Accelerated filer
o
Non-accelerated filer
o
Smaller reporting company
o
(Do not check if a smaller reporting company)
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Proposed Maximum
Title of Securities
Amount to be
Offering Price
Aggregate Offering
Amount of
to be Registered (1)
Registered (2)
Per Share (3)
Price (3)
Registration Fee
Common Stock, $0.10
par value per share
5,000,000 shares
$7.44
$37,200,000
$1,462
(1)
Pursuant to Rule 416(c) under the Securities Act of 1933, this Registration Statement also
covers an indeterminate amount of interests to be offered or sold pursuant to the employee
benefit plan described herein.
(2)
This Registration Statement shall also cover any additional shares of Common Stock which
become issuable under the GenCorp Retirement Savings Plan by reason of any stock dividend,
stock split, recapitalization or other similar transaction effected without the receipt of
consideration which results in an increase in the number of the Registrant's outstanding
shares of Common Stock.
(3)
Estimated solely for the purpose of computing the registration fee in accordance with Rule
457(h)(1) and Rule 457(c), based on the average of the high and
low sales price on June 25,
2008, as reported by the New York Stock Exchange.
Table of Contents
INTRODUCTORY STATEMENT
This Registration Statement on Form S-8 is being filed by GenCorp Inc. (the "Registrant") for
the purpose of registering an additional 5,000,000 shares of the Registrant's common stock, par
value $0.10 per share ("Common Stock"), issued in the GenCorp Stock Fund pursuant to the GenCorp
Retirement Savings Plan (the "Plan").
TABLE OF CONTENTS
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification Of Directors And Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
EXHIBIT 4.1
EXHIBIT 5.1
EXHIBIT 23.1
EXHIBIT 23.2
EXHIBIT 24.1
Table of Contents
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents, which are on file with the Commission, are incorporated herein by
this reference and made a part hereof:
(a)
The Registrant's Annual Report on Form 10-K for its fiscal year ended November
30, 2007, filed with the Commission on January 25, 2007, pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of
1934, as amended (the "Exchange Act");
(b)
GenCorp Retirement Savings Plan's Annual Report on Form 11-K for the year ended
December 31, 2007, filed with the Commission on June 30,
2008;
(c)
The Registrant's Quarterly Report on Form 10-Q for the quarter ended February
29, 2008, filed with the Commission on March 26, 2008 pursuant to the Exchange Act;
(d)
The Registrant's Current Reports on Form 8-K filed on December 14, 2007 and
January 24, March 10, March 17, April 8, May 1 and May 20, 2008 pursuant to the Exchange Act; and
(e)
The description of the Registrant's capital stock contained its Registration
Statement on Form 10 dated May 20, 1935, as amended by Amendment No. 1 on Form 8, dated
March 29, 1989 (File No. 1-1520).
All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which de-registers all securities then remaining unsold
shall be deemed to be incorporated by reference herein and to be a part hereof from the date of
filing of such reports and documents. Any statement contained in a document incorporated or deemed
to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of
this Registration Statement to the extent that a statement contained in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or supersedes such
statement.
Item 4. Description of Securities.
Not applicable.
Item 5. Interests of Named Experts and Counsel.
The validity of the Common Stock and participation interests offered hereby has been passed upon by
Mark A. Whitney, Esq., Senior Vice President, General Counsel and
Secretary, of the Registrant. As of
the date of this Registration Statement, Mr. Whitney beneficially owns shares of Common Stock and
options to purchase shares of Common Stock and is a participant in the GenCorp Retirement Saving
Plan.
Item 6. Indemnification Of Directors And Officers.
Applicable Laws of Ohio
Section 1701.13(E) of the Ohio General Corporation Law authorizes a corporation under certain
circumstances to indemnify any director, trustee, officer, employee or agent in respect of expenses
and other costs reasonably incurred by him in connection with any action, suit or proceeding to
which he is made a party or threatened to be made a party by reason of the fact that he was a
director, trustee, officer, employee or agent of the corporation. In general, indemnification is
permissible only if the person acted in good faith and in a manner he reasonably believed to be in
or not opposed to the best interests of the corporation, and in any criminal proceeding, had no
reasonable cause to believe his conduct was unlawful. In respect of any action by or in right of
the corporation, indemnification is not permitted if the person is adjudged liable for negligence
or misconduct in the performance of his duty to the corporation unless authorized by a court. To the extent that a director, trustee, officer, employee
or agent has been successful in the defense of any such action, suit or proceeding, he is entitled
to be indemnified against his reasonable expenses incurred in connection therewith by Section
1701.13(E)(3) of the Ohio General Corporation Law.
Table of Contents
Code of Regulations
Article Two,
Section 10 of the Code of Regulations of the Registrant concerns indemnification of the
company's directors and officers and provides as follows:
The Corporation shall indemnify, to the full extent then permitted by law, any person who was or is
a party or is threatened to be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he
is or was a member of the Board of Directors or an officer, employee, member, manager or agent of
the Corporation, or is or was serving at the request of the Corporation as a director, trustee,
officer, employee or agent of another corporation, limited liability company, or a partnership,
joint venture, trust or other enterprise. The Corporation shall pay, to the full extent then
required by law, expenses, including attorney's fees, incurred by a member of the Board of
Directors in defending any such action, suit or proceeding as they are incurred, in advance of the
final disposition thereof, and may pay, in the same manner and to the full extent then permitted by
law, such expenses incurred by any other person. The indemnification and payment of expenses
provided hereby shall not be exclusive of, and shall be in addition to, any other rights granted to
those seeking indemnification under any law, the Articles of Incorporation, any agreement, vote of
shareholders or disinterested members of the Board of Directors, or otherwise, both as to action in
official capacities and as to action in another capacity while he or she is a member of the Board
of Directors, or an officer, employee or agent of the Corporation, and shall continue as to a
person who has ceased to be a member of the Board of Directors, trustee, officer, employee or agent
and shall inure to the benefit of the heirs, executors, and administrators of such a person.
The Corporation may, to the full extent then permitted by law and authorized by the Board of
Directors, purchase and maintain insurance or furnish similar protection, including but not limited
to trust funds, letters of credit or self-insurance, on behalf of or for any persons described in
the preceding paragraph against any liability asserted against and incurred by any such person in
any such capacity, or arising out of his status as such, whether or not the Corporation would have
the power to indemnify such person against such liability. Insurance may be purchased from or
maintained with a person in which the Corporation has a financial interest.
The Corporation, upon approval by the Board of Directors, may enter into agreements with any
persons whom the Corporation may indemnify under this Code of Regulations or under law and
undertake thereby to indemnify such persons and to pay the expenses incurred by them in defending
any action, suit or proceeding against them, whether or not the Corporation would have the power
under law or this Code of Regulations to indemnify any such person.
Contracts
The Registrant maintains and pays the premiums on contracts insuring the directors and officers of
the company and its subsidiaries (subject to the policy's terms, conditions and exclusions) for
liability that the directors and officers, or the company or its subsidiaries (in certain
situations), may incur in performing their directorship or officership duties. The insurance
contract provides coverage for loss, including defense expense, even in the absence of indemnity by
the corporation to the individual director or officer.
The Registrant has entered into indemnification agreements with all of its directors and executive
officers to indemnify them against certain liabilities and expenses, including legal fees, that
they may incur by reason of their relationship to the company. In general, the company is required
to indemnify an individual who is a director or an officer for such liabilities and expenses unless
(i) if the person is a director, it is proved by clear and convincing evidence that his or her
action or failure to act involved an act or omission undertaken with deliberate intent to cause
injury to the company or undertaken with reckless disregard for the best interests of the company,
subject to certain exceptions, or (ii) if the person is an executive officer only, he or she did
not act in good faith or in a manner that he or she reasonably believed to be in or not opposed to
the best interests of the company, subject to certain exceptions. In addition, each director and
officer is to be indemnified against any amount that he or she becomes obligated to pay relating to
or arising out of any claim made against him or her because of any act or failure to act or neglect
or breach of duty that he or she commits or permits while acting as a director or officer of the
company, subject to certain exceptions. In respect of any criminal proceeding, the company is
required to indemnify each director and officer if such person had no reasonable cause to believe
his or her conduct was unlawful. Each director and officer will also be indemnified for expenses actually and reasonably incurred by him or her to the extent
that such individual is successful on the merits in any action.
Table of Contents
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
The following exhibits are filed as part of this Registration:
Exhibit Number
Description of Exhibit
4.1
GenCorp Retirement Savings Plan (filed herewith)
5.1
Opinion of Mark A. Whitney, Esq., Senior Vice
President, General Counsel and Secretary (filed
herewith)
23.1
Consent of PricewaterhouseCoopers LLP (filed herewith)
23.2
Consent of Ernst & Young LLP (filed herewith)
24.1
Power of Attorney (filed herewith)
The Registrant hereby undertakes that it has submitted the Plan and
will submit any amendments thereto to the Internal Revenue Service
("IRS") in a timely manner and has made and will make all changes
required by the IRS to qualify the Plan.
Item 9. Undertakings.
The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales of the securities registered
hereby are being made, a post-effective amendment to the registration statement: (i) to
include any prospectus required by Section 10(a)(3) of the Securities Act of 1933 (the "Act");
(ii) to reflect in the prospectus any facts or events arising after the effective date of the
registration statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set forth
in the registration statement; notwithstanding the foregoing, any increase or decrease in
volume of securities offered (if the total dollar value of securities offered would not exceed
that which was registered) and any deviation from the low or high end of the estimated maximum
offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule
424(b), if, in the aggregate, the changes in volume and price represent no more than 20
percent change in the maximum aggregate offering price set forth in the "Calculation of
Registration Fee" table in the effective registration statement; and (iii) to include any
material information with respect to the plan of distribution not previously disclosed in the
registration statement or any material change to such information in the registration
statement,
provided
,
however
, that clauses (i) and (ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the SEC by the Registrant pursuant to Section 13 or
Section 15(d) of the Exchange Act that are incorporated by reference in this registration
statement.
(2) That, for the purpose of determining any liability under the Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the
securities being registered which remain unsold at the termination of the offering.
(4) That, for purposes of determining any liability under the Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act that
is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.
Table of Contents
Insofar as indemnification for liabilities arising under the Act may be permitted to
directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions,
or otherwise, the Registrant has been advised that in the opinion of the Commission such
indemnification is against public policy as expressed in the Act and is, therefore unenforceable.
In the event that a claim for indemnification against such liabilities (other than the payment by
the Registrant of expenses incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether such indemnification
by it is against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
SIGNATURES
The Registrant
. Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in Rancho Cordova,
California, on this 30th day of June
2008.
GENCORP INC.,
An Ohio corporation
(Registrant)
By:
/s/ Yasmin R. Seyal
Yasmin R. Seyal
Senior Vice President and Chief Financial Officer
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed below by the following persons in the capacities and on the dates indicated.
[Signature Page Follows]
Table of Contents
Signature
Title
Date
/s/ J. Scott Neish
J. Scott Neish
Interim President and Chief Executive Officer
(principal executive officer)
June 30, 2008
/s/ Yasmin R. Seyal
Yasmin R. Seyal
Senior Vice President and Chief Financial Officer
(principal financial officer)
June 30, 2008
/s/ R. Leon Blackburn
R. Leon Blackburn
Vice President and Controller
(principal accounting officer)
June 30, 2008
/s/ *
James R. Henderson
Chairman of the Board of Directors
June 30, 2008
Warren G. Lichtenstein
Director
/s/ *
David A. Lorber
Director
June 30, 2008
/s/ *
James H. Perry
Director
June 30, 2008
/s/ *
Martin Turchin
Director
June 30, 2008
Robert C. Woods
Director
*/s/ Yasmin R. Seyal
Yasmin R. Seyal
Attorney-in-Fact pursuant to
Power of Attorney filed herewith
June 30, 2008
Table of Contents
The Plan.
Pursuant to the requirements of the Securities Act of 1933, GenCorp Inc., as plan
administrator, has duly caused the Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in Rancho Cordova, California
on the 30th day of June,
2008.
GENCORP RETIREMENT SAVINGS PLAN
By:
/s/ Yasmin R. Seyal
Yasmin R. Seyal
Senior Vice President and Chief Financial Officer
Table of Contents
EXHIBIT INDEX
Exhibit Number
Description of Exhibit
4.1
GenCorp Retirement Savings Plan (filed herewith)
5.1
Opinion of Mark A. Whitney, Esq., Senior Vice President,
General Counsel and Secretary (filed herewith)
23.1
Consent of PricewaterhouseCoopers LLP (filed herewith)
23.2
Consent of Ernst & Young LLP (filed herewith)
24.1
Powers of Attorney (filed herewith)