<SEC-DOCUMENT>0001193125-14-038568.txt : 20140206
<SEC-HEADER>0001193125-14-038568.hdr.sgml : 20140206
<ACCEPTANCE-DATETIME>20140206134033
ACCESSION NUMBER:		0001193125-14-038568
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20140206
DATE AS OF CHANGE:		20140206
GROUP MEMBERS:		COLUMBIA ACORN FUND

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RUSH ENTERPRISES INC \TX\
		CENTRAL INDEX KEY:			0001012019
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-AUTO DEALERS & GASOLINE STATIONS [5500]
		IRS NUMBER:				741733016
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-48505
		FILM NUMBER:		14579228

	BUSINESS ADDRESS:	
		STREET 1:		555 IH 35 SOUTH
		CITY:			NEW BRAUNFELS
		STATE:			TX
		ZIP:			78130
		BUSINESS PHONE:		8306265200

	MAIL ADDRESS:	
		STREET 1:		555 IH 35 SOUTH
		CITY:			NEW BRAUNFELS
		STATE:			TX
		ZIP:			78130

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLUMBIA WANGER ASSET MANAGEMENT LLC
		CENTRAL INDEX KEY:			0000908733
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				043519872
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		227 W MONROE STREET
		STREET 2:		SUITE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-634-9200

	MAIL ADDRESS:	
		STREET 1:		227 W MONROE ST
		STREET 2:		STE 3000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLUMBIA WANGER ASSET MANAGEMENT LP
		DATE OF NAME CHANGE:	20040427

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LIBERTY WANGER ASSET MANAGEMENT LP
		DATE OF NAME CHANGE:	20010220

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WANGER ASSET MANAGEMENT LP
		DATE OF NAME CHANGE:	19990108
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d669604dsc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
<HTML><HEAD>
<TITLE>SC 13G/A</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:12pt; 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:18pt;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:18pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SCHEDULE 13G
</B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>UNDER THE SECURITIES EXCHANGE ACT OF 1934 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>(Amendment No.&nbsp;3)* </B></P> <P STYLE="font-size:18pt;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:18pt; margin-bottom:0pt; font-size:22pt; font-family:Times New Roman" ALIGN="center"><B>RUSH
ENTERPRISES INC </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Name of Issuer) </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CLASS B COMMON STOCK </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Title of Class of Securities) </B></P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>781846308 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(CUSIP Number)
</B></P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>December&nbsp;31, 2013 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Date of Event Which Requires Filing of this Statement) </B></P> <P STYLE="font-size:18pt;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:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Check the appropriate box to
designate the Rule pursuant to which this Schedule is filed: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT> Rule 13d &#150; 1(b) </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT> Rule 13d &#150; 1(c) </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT> Rule 13d &#150; 1(d) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left">*</TD>
<TD ALIGN="left" VALIGN="top">The remainder of this cover page shall be filled out for a reporting person&#146;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information
which would alter disclosures provided in a prior cover page. </TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The information required on the remainder of this page shall
not be deemed to be &#147;filed&#148; for the purpose of Section&nbsp;18 of the Securities Exchange Act of 1934 (&#147;Act&#148;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the
Act (however, <I>see</I> the <I>Notes</I>.) </P> <P STYLE="font-size:12pt;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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<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;1&nbsp;</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-TOP:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NAMES OF
REPORTING PERSONS</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY):</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">Columbia Wanger Asset Management, LLC
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;04-3519872</P></TD></TR>
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<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><B>&nbsp;&nbsp;2</B></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP (See Instructions)</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
(b)&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT><SUP STYLE="font-size:85%; vertical-align:top">1</SUP></P> <P STYLE="font-size:12pt; margin-top:0pt; margin-bottom:1pt">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;3</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SEC USE ONLY</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:1pt">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;4</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CITIZENSHIP OR PLACE OF
ORGANIZATION</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">Delaware</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="middle" COLSPAN="3" ROWSPAN="4" ALIGN="center" STYLE="BORDER-LEFT:1px solid #000000; padding-left:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">NUMBER&nbsp;OF SHARES</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">BENEFICIALLY</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">OWNED&nbsp;BY</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">EACH</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">REPORTING</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">PERSON</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">WITH</P></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>5&nbsp;</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SOLE VOTING POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">664,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>6</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SHARED VOTING POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">0</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>7</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SOLE DISPOSITIVE POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">764,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top"><FONT STYLE="font-size:10pt"><B>8</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SHARED DISPOSITIVE POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">0</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;9</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-TOP:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt">
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">764,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>10</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CHECK IF THE AGGREGATE AMOUNT IN ROW
(9) EXCLUDES CERTAIN SHARES (See Instructions)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>11</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (9)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">7.2%</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>12</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">TYPE OF REPORTING PERSON (See
Instructions)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">IA</P></TD></TR>
</TABLE> <P STYLE="line-height:8.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:10%">&nbsp;</P>
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<TD WIDTH="4%" VALIGN="top" ALIGN="left"><SUP STYLE="font-size:85%; vertical-align:top">1</SUP>&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">This filing describes the reporting person&#146;s relationship with other persons, but the reporting person does not affirm the existence of a group. </TD></TR></TABLE>

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<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;1&nbsp;</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-TOP:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NAMES OF
REPORTING PERSONS</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY):</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">Columbia Acorn Fund
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;36-2692100</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><B>&nbsp;&nbsp;2</B></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP (See Instructions)</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;<FONT
STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT><SUP STYLE="font-size:85%; vertical-align:top">2</SUP></P> <P STYLE="font-size:12pt; margin-top:0pt; margin-bottom:1pt">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;3</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SEC USE ONLY</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:1pt">&nbsp;</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;4</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CITIZENSHIP OR PLACE OF
ORGANIZATION</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">Massachusetts</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="middle" COLSPAN="3" ROWSPAN="4" ALIGN="center" STYLE="BORDER-LEFT:1px solid #000000; padding-left:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">NUMBER&nbsp;OF</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SHARES</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">BENEFICIALLY</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">OWNED&nbsp;BY</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">EACH</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">REPORTING</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">PERSON</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">WITH</P></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>5&nbsp;</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SOLE VOTING POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">550,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>6</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SHARED VOTING POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">0</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:10pt"><B>7</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SOLE DISPOSITIVE POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">550,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top"><FONT STYLE="font-size:10pt"><B>8</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-RIGHT:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">SHARED DISPOSITIVE POWER</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">0</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>&nbsp;&nbsp;9</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-TOP:1px solid #000000; BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt">
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">550,000</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>10</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CHECK IF THE AGGREGATE AMOUNT IN ROW
(9) EXCLUDES CERTAIN SHARES (See Instructions)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman"><FONT STYLE="FONT-FAMILY:WINGDINGS">&#168;</FONT></P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>11</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (9)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">5.2%</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:12pt">
<TD VALIGN="top" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-left:8pt"><FONT STYLE="font-size:10pt"><B>12</B></FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-LEFT:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="top" COLSPAN="5" STYLE="BORDER-RIGHT:1px solid #000000; BORDER-BOTTOM:1px solid #000000; padding-right:8pt"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">TYPE OF REPORTING PERSON (See
Instructions)</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:12pt; font-family:Times New Roman">IV</P></TD></TR>
</TABLE> <P STYLE="line-height:8.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:10%">&nbsp;</P>
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<TR>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><SUP STYLE="font-size:85%; vertical-align:top">2</SUP>&nbsp;</TD>
<TD ALIGN="left" VALIGN="top">This filing describes the reporting person&#146;s relationship with other persons, but the reporting person does not affirm the existence of a group. </TD></TR></TABLE>

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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;1(a).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Name of Issuer: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Rush Enterprises Inc </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;1(b).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Address of Issuer&#146;s Principal Executive Offices: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">555 IH 35 South </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">New Braunfels, TX 78130 </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;2(a).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Name of Person Filing: </B></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(a)</TD>
<TD ALIGN="left" VALIGN="top">Columbia Wanger Asset Management, LLC </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(b)</TD>
<TD ALIGN="left" VALIGN="top">Columbia Acorn Fund </TD></TR></TABLE> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;2(b).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Address of Principal Business Office or, if None, Residence: </B></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(a)</TD>
<TD ALIGN="left" VALIGN="top">227 West Monroe Street, Suite 3000, Chicago, IL 60606 </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(b)</TD>
<TD ALIGN="left" VALIGN="top">227 West Monroe Street, Suite 3000, Chicago, IL 60606 </TD></TR></TABLE> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;2(c).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Citizenship: </B></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(a)</TD>
<TD ALIGN="left" VALIGN="top">Delaware </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(b)</TD>
<TD ALIGN="left" VALIGN="top">Massachusetts </TD></TR></TABLE> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;2(d).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Title of Class of Securities: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Class B Common Stock </P>

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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;2(e).</B></TD>
<TD ALIGN="left" VALIGN="top"><B>CUSIP Number: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">781846308 </P>
<P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;3.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: </B></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(a)</TD>
<TD ALIGN="left" VALIGN="top">Columbia Wanger Asset Management, LLC is an investment adviser in accordance with rule 13d-1(b)(1)(ii)(E). </TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(b)</TD>
<TD ALIGN="left" VALIGN="top">Columbia Acorn Fund is an investment company registered under Section&nbsp;8 of the Investment Company Act. </TD></TR></TABLE> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;4.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Ownership: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">With respect to the beneficial ownership of the reporting persons, see
Items 5 through 11 of the cover pages to this Schedule 13G, which are incorporated herein by reference. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Columbia Wanger Asset Management,
LLC (CWAM) does not directly own any shares of common stock of the issuer. As the investment adviser of Columbia Acorn Fund and various other investment companies and managed accounts, CWAM may be deemed to beneficially own the shares reported
herein by Columbia Acorn Fund. Accordingly, the shares reported herein by CWAM include those shares separately reported herein by Columbia Acorn Fund. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">CWAM disclaims beneficial ownership of any shares reported herein. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;5.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Ownership of 5 Percent or Less of a Class: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Not applicable </P>
<P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;6.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Ownership of More than Five Percent on Behalf of Another Person: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">To the knowledge of
CWAM and Columbia Acorn Fund, no other persons besides CWAM and Columbia Acorn Fund and those persons for whose shares of common stock CWAM reports beneficial ownership have the right to receive or the power to direct the receipt of dividends from
or the proceeds from the sale of the securities of the issuer reported herein. As of December&nbsp;31, 2013, only Columbia Acorn Fund, a Massachusetts business trust managed by CWAM, owned more than 5% of the class of securities reported herein.
</P>

<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Any remaining shares reported herein by CWAM are held by various other funds or accounts managed
by CWAM which each have the right to receive any dividends paid by the issuer and could terminate their respective investment advisory relationship with CWAM and then subsequently direct the use of proceeds from the sale of common stock owned by
such fund or account. To CWAM&#146;s knowledge, none of these other funds or accounts owned more than 5% of the outstanding shares of the issuer as of December&nbsp;31, 2013. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>

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<TR>
<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;7.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person: </B></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Not Applicable. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;8.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Identification and Classification of Members of the Group: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Not Applicable. </P>
<P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;9.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Notice of Dissolution of Group: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">Not Applicable. </P>

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<TD WIDTH="10%" VALIGN="top" ALIGN="left"><B>Item&nbsp;10.</B></TD>
<TD ALIGN="left" VALIGN="top"><B>Certification: </B></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:10%; font-size:10pt; font-family:Times New Roman">By signing below each of the undersigned certifies that, to the best of
such undersigned&#146;s knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not for the purpose of or with the effect of changing or influencing the
control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURE </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: February&nbsp;6, 2014 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Columbia Wanger Asset
Management, LLC </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Bruce H. Lauer</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Bruce H. Lauer</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Chief Operating Officer</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Columbia Acorn Fund </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Bruce H. Lauer</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Bruce H. Lauer</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Vice President, Treasurer and Secretary</TD></TR>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d669604dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
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<TITLE>EX-99.1</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit 99.1 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT 99.1 - JOINT FILING AGREEMENT </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of
such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other
persons making the filing, unless such person knows or has reason to believe that such information is inaccurate. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In accordance with Rule 13d-1(k)(1)
promulgated under the Securities and Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other on behalf of each of them of to such a statement on Schedule 13G with respect to the common stock of beneficially
owned by each of them. This Joint Filing Agreement shall be included as an exhibit to such Schedule&nbsp;13G. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: February 6, 2014 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Columbia Wanger Asset Management, LLC </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Bruce H. Lauer</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Bruce H. Lauer</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Chief Operating Officer</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Columbia Acorn Fund </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Bruce H. Lauer</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Bruce H. Lauer</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom"><FONT STYLE="font-size:8pt">&nbsp;</FONT></TD>
<TD VALIGN="bottom">Vice President, Treasurer and Secretary</TD></TR>
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