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<TITLE>Form 8-K</TITLE>
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 <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM 8-K
</B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant
to Section&nbsp;13 or 15(d) </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of The Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of Report (Date of Earliest Event Reported) September&nbsp;10, 2013 </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>Armstrong World Industries, Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of registrant as specified in its charter) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>Pennsylvania</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>001-02116</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>23-0366390</B></TD></TR>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(IRS Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR></TABLE>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>2500 Columbia Avenue P.O. Box 3001</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Lancaster, Pennsylvania</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center"><B>17603</B></TD></TR>
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<TD VALIGN="top" ALIGN="center"><B>(Address of principal executive offices)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(Zip Code)</B></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code (717) 397-0611 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>N/A </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Former name or
former address, if changed since last report </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD ALIGN="left" VALIGN="top">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></TD>
<TD ALIGN="left" VALIGN="top">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) </TD></TR></TABLE> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;1.01. Entry into a Material Definitive Agreement. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Underwriting Agreement </I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">On
September&nbsp;10, 2013, Armstrong World Industries, Inc. (the &#147;Company&#148;) entered into an underwriting agreement (the &#147;Underwriting Agreement&#148;) with The Armstrong World Industries, Inc. Asbestos Personal Injury Settlement Trust
and Armor TPG Holdings, L.P. (the &#147;Selling Shareholders&#148;), and Deutsche Bank Securities Inc. (the &#147;Underwriter&#148;), pursuant to which the Selling Shareholders agreed to sell an aggregate of 12,057,382 common shares, par value $0.01
per share, of the Company to the Underwriter (the &#147;Offering&#148;). The Offering was consummated on September&nbsp;13, 2013. The Company did not sell any shares in the Offering and did not receive any proceeds from the Offering. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Offering was made pursuant to a prospectus supplement, dated September&nbsp;10, 2013, to the prospectus, dated February&nbsp;27, 2012,
included in the Company&#146;s registration statement on Form S-3 (File No.&nbsp;333-179711), which was filed with the Securities and Exchange Commission on February&nbsp;27, 2012. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The Underwriting Agreement contains customary representations, warranties and covenants and includes the terms and conditions for the sale of
the shares by the Selling Shareholders to the Underwriter, indemnification and contribution obligations and other terms and conditions customary in agreements of this type. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">A copy of the Underwriting Agreement is filed as Exhibit 1.1 hereto. The above description is qualified in its entirety by reference to such
exhibit. An opinion regarding the validity of the shares is filed as Exhibit 5.1 hereto and is incorporated by reference herein. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>Share Repurchase
</I></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">On September&nbsp;10, 2013, the Company entered into a share repurchase agreement with the Underwriter (the &#147;Repurchase
Agreement&#148;) to repurchase 5,057,382 of the 12,057,382 common shares (the &#147;Share Repurchase&#148;), which were sold in the Offering, directly from the Underwriter at the price per share equal to the price paid by the Underwriter to purchase
the shares from the Selling Shareholders in the Offering. The Company repurchased the 5,057,382 common shares at a price of $51.41 per share pursuant to the terms of the Repurchase Agreement. The Share Repurchase was consummated on
September&nbsp;13, 2013, contemporaneously with the closing of the Offering. The repurchased shares are being held in treasury. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">A copy of
the Repurchase Agreement is filed as Exhibit 10.1 hereto. The above description is qualified in its entirety by reference to such exhibit. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;9.01 Financial Statements and Exhibits. </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) Exhibits </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;1.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Underwriting Agreement, dated September&nbsp;10, 2013.</TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Opinion of Morgan, Lewis &amp; Bockius LLP.</TD></TR>
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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>10.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Share Repurchase Agreement, dated September 10, 2013.</TD></TR>
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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>23.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Consent of Morgan, Lewis &amp; Bockius LLP (contained in Exhibit 5.1).</TD></TR>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">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. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top"><U>ARMSTRONG WORLD INDUSTRIES, INC.</U></TD></TR>
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<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
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<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(Registrant)</TD></TR>
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<TD VALIGN="top">Date: September&nbsp;13, 2013</TD>
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<TD VALIGN="top">By:</TD>
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<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Mark A. Hershey</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
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<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
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<TD VALIGN="top">Mark A. Hershey</TD></TR>
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<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top">Senior Vice President, General Counsel and Secretary</TD></TR>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT INDEX </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;1.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Underwriting Agreement, dated September&nbsp;10, 2013.</TD></TR>
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<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Opinion of Morgan, Lewis &amp; Bockius LLP.</TD></TR>
<TR>
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.1</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top">Share Repurchase Agreement, dated September 10, 2013.</TD></TR>
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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP>23.1</TD>
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<TD VALIGN="top">Consent of Morgan, Lewis &amp; Bockius LLP (contained in Exhibit 5.1).</TD></TR>
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Form 8-K
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) September 10, 2013
Armstrong World Industries, Inc.
(Exact name of registrant as specified in its charter)
Pennsylvania
001-02116
23-0366390
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
2500 Columbia Avenue P.O. Box 3001
Lancaster, Pennsylvania
17603
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code (717) 397-0611
N/A
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:
¨
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 1.01. Entry into a Material Definitive Agreement.
Underwriting Agreement
On
September 10, 2013, Armstrong World Industries, Inc. (the "Company") entered into an underwriting agreement (the "Underwriting Agreement") with The Armstrong World Industries, Inc. Asbestos Personal Injury Settlement Trust
and Armor TPG Holdings, L.P. (the "Selling Shareholders"), and Deutsche Bank Securities Inc. (the "Underwriter"), pursuant to which the Selling Shareholders agreed to sell an aggregate of 12,057,382 common shares, par value $0.01
per share, of the Company to the Underwriter (the "Offering"). The Offering was consummated on September 13, 2013. The Company did not sell any shares in the Offering and did not receive any proceeds from the Offering.
The Offering was made pursuant to a prospectus supplement, dated September 10, 2013, to the prospectus, dated February 27, 2012,
included in the Company's registration statement on Form S-3 (File No. 333-179711), which was filed with the Securities and Exchange Commission on February 27, 2012.
The Underwriting Agreement contains customary representations, warranties and covenants and includes the terms and conditions for the sale of
the shares by the Selling Shareholders to the Underwriter, indemnification and contribution obligations and other terms and conditions customary in agreements of this type.
A copy of the Underwriting Agreement is filed as Exhibit 1.1 hereto. The above description is qualified in its entirety by reference to such
exhibit. An opinion regarding the validity of the shares is filed as Exhibit 5.1 hereto and is incorporated by reference herein.
Share Repurchase
On September 10, 2013, the Company entered into a share repurchase agreement with the Underwriter (the "Repurchase
Agreement") to repurchase 5,057,382 of the 12,057,382 common shares (the "Share Repurchase"), which were sold in the Offering, directly from the Underwriter at the price per share equal to the price paid by the Underwriter to purchase
the shares from the Selling Shareholders in the Offering. The Company repurchased the 5,057,382 common shares at a price of $51.41 per share pursuant to the terms of the Repurchase Agreement. The Share Repurchase was consummated on
September 13, 2013, contemporaneously with the closing of the Offering. The repurchased shares are being held in treasury.
A copy of
the Repurchase Agreement is filed as Exhibit 10.1 hereto. The above description is qualified in its entirety by reference to such exhibit.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits
1.1
Underwriting Agreement, dated September 10, 2013.
5.1
Opinion of Morgan, Lewis & Bockius LLP.
10.1
Share Repurchase Agreement, dated September 10, 2013.
23.1
Consent of Morgan, Lewis & Bockius LLP (contained in Exhibit 5.1).
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.
ARMSTRONG WORLD INDUSTRIES, INC.
(Registrant)
Date: September 13, 2013
By:
/s/ Mark A. Hershey
Mark A. Hershey
Senior Vice President, General Counsel and Secretary
EXHIBIT INDEX
1.1
Underwriting Agreement, dated September 10, 2013.
5.1
Opinion of Morgan, Lewis & Bockius LLP.
10.1
Share Repurchase Agreement, dated September 10, 2013.
23.1
Consent of Morgan, Lewis & Bockius LLP (contained in Exhibit 5.1).