<SEC-DOCUMENT>0001068800-12-000005.txt : 20120125
<SEC-HEADER>0001068800-12-000005.hdr.sgml : 20120125
<ACCEPTANCE-DATETIME>20120125102409
ACCESSION NUMBER:		0001068800-12-000005
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20120125
DATE AS OF CHANGE:		20120125

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHEZ RONALD L
		CENTRAL INDEX KEY:			0000942801

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	MAIL ADDRESS:	
		STREET 1:		219 E. LAKE SHORE DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REPLIGEN CORP
		CENTRAL INDEX KEY:			0000730272
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				042729386
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-38071
		FILM NUMBER:		12543403

	BUSINESS ADDRESS:	
		STREET 1:		41 SEYON STREET
		STREET 2:		BUILDING 1, SUITE 100
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02453
		BUSINESS PHONE:		7814499560

	MAIL ADDRESS:	
		STREET 1:		41 SEYON STREET
		STREET 2:		BUILDING 1, SUITE 100
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02453
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>sched13da.htm
<TEXT>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">SECURITIES AND EXCHANGE COMMISSION</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">Washington, D.C. 20549</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Schedule 13D</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Under the Securities Exchange Act of 1934</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">(Amendment No. 6)*</font></div>

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<div style="DISPLAY: block; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif"><font style="DISPLAY: inline">REPLIGEN CORP</font></font></div>

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<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">(Name of Issuer)</font></div>

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<font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif"><font style="DISPLAY: inline">Common Stock, Par Value $0.01 Per Share</font></font></div>

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<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">(Title of Class of Securities)</font></div>

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<div style="DISPLAY: block; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif"><font style="DISPLAY: inline">759916 10 9</font></font></div>

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<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">(CUSIP Number)</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Barry L. Fischer</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Thompson Coburn LLP</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">55 East Monroe Street</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Suite 3700</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Chicago, IL 60603</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif"><font style="DISPLAY: inline">(312) 346-7500</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">&#160;</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif"><font style="DISPLAY: inline">January 25, 2012</font></font></div>

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<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman, serif">(Date of Event which Requires Filing of this Statement)</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), (f) or (g), check the following box <a name="Check1"><!--EFPlaceholder--></a><font style="DISPLAY: inline;" face="Wingdings">o</font>.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Note:&#160;&#160;Schedules filed in paper format shall include a signed original and five copies of the Schedule, including all exhibits.&#160;&#160;See Rule 13d-7(b) for other parties to whom copies are being sent.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">*The remainder of this cover page shall be filled out for a reporting person&#8217;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.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">The information required on the remainder of this cover page shall not be deemed to be &#8220;filed&#8221; for the purpose of Section 18 of the Securities Exchange Act of 1934 (&#8220;Act&#8221;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></div>

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<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1</font></div>

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<div>&#160;</div>

<div>&#160;</div>

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<div style="DISPLAY: block; TEXT-INDENT: 0pt">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">CUSIP No.&#160;&#160;<font style="DISPLAY: inline; FONT-WEIGHT: bold">590418109</font></font></div>

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<td valign="top" width="70%" style="BORDER-TOP: black 1.5pt double; BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">NAMES OF REPORTING PERSON</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Individual Retirement Accounts for the benefit of Ronald L. Chez and Ronald L. Chez Individually</font></div>
</td>
<td valign="top" width="7%" style="BORDER-TOP: black 1.5pt double; BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
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<td valign="top" width="3%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">2</font></div>
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<td valign="top" width="70%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="7%" style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(a) <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(b) <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>
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<td valign="top" width="3%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">3</font></div>
</td>
<td valign="top" width="70%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SEC USE ONLY</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>
</td>
<td valign="top" width="7%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="3%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">4</font></div>
</td>
<td valign="top" width="70%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SOURCE OF FUNDS (See Instructions)</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">PF</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
<td valign="top" width="7%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td valign="top" width="3%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">5</font></div>
</td>
<td valign="top" width="70%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#8194;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#8194;&#8194;&#8194;&#8194;</font></div>
</td>
<td valign="top" width="7%" style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></td>
</tr><tr>
<td valign="top" width="3%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">6</font></div>
</td>
<td valign="top" width="70%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">CITIZENSHIP OR PLACE OF ORGANIZATION</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">United States of America</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
</td>
<td valign="top" width="7%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">
<div>
<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td colspan="2" valign="bottom" width="13%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">NUMBER OF</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SHARES</font></font></div>
</td>
<td valign="top" width="4%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">7</font></font></div>
</td>
<td valign="top" width="63%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SOLE VOTING POWER</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;<font size="3">2,815,631</font></font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>
</td>
</tr><tr>
<td colspan="2" valign="top" width="13%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">BENEFICIALLY</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">OWNED BY</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">EACH</font></div>
</td>
<td valign="top" width="4%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">8</font></div>
</td>
<td valign="top" width="63%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SHARED VOTING POWER</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">0</font></div>
</td>
</tr><tr>
<td colspan="2" valign="top" width="13%" style="PADDING-BOTTOM: 4px; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; <font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">REPORTING</font> </font>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">PERSON</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">WITH</font></font></div>
</td>
<td valign="top" width="4%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">9</font></div>
</td>
<td valign="top" width="63%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SOLE DISPOSITIVE POWER</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">0</font></div>
</td>
</tr><tr>
<td colspan="2" valign="top" width="13%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="top" width="4%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">10</font></div>
</td>
<td valign="top" width="63%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">SHARED DISPOSITIVE POWER</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;<font size="3">2,815,631</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
</td>
</tr><tr>
<td valign="top" width="4%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">11</font></div>
</td>
<td colspan="3" valign="top" width="75%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;<font size="3">2,815,631</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
</td>
</tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="5%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">12</font></td>
<td valign="top" width="86%" style="BORDER-BOTTOM: black 4px double">

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES</font></font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>
</td>
<td colspan="2" valign="top" width="9%" style="BORDER-BOTTOM: black 4px double; TEXT-ALIGN: right">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt; TEXT-ALIGN: right"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>
</td>
</tr><tr>
<td valign="top" width="5%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">13</font></td>
<td colspan="3" valign="top" width="75%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">9.2%</font><font style="DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">(1)</font></font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>
</td>
</tr><tr>
<td valign="top" width="5%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">14</font></td>
<td colspan="3" valign="top" width="75%" style="BORDER-BOTTOM: black 4px double">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">TYPE OF REPORTING PERSON (See Instructions)</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">IN</font></font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160;</font></div>
</td>
</tr></table>
</div>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">________________________________</font></div>

<br>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-SIZE: 70%; VERTICAL-ALIGN: text-top"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;(1)</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="DISPLAY: inline; FONT-SIZE: 10pt">Based upon 30,714,757<font style="DISPLAY: inline; FONT-SIZE: 10pt">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt">shares of the Issuer&#8217;s common stock issued and outstanding as of October 31, 2011, as reported on the Issuer&#8217;s Form 10-Q for the quarterly period ended September 30, 2011.</font></font></font><br>
</div>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<br>
</div>
</div>

<div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
<div id="FTR">
<div id="GLFTR" style="WIDTH: 100%" align="left"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>

<div id="PN" style="PAGE-BREAK-AFTER: always; WIDTH: 100%">
<div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">2</font></div>

<div style="WIDTH: 100%; TEXT-ALIGN: center">
<hr style="COLOR: black" noshade size="2">
</div>
</div>

<div id="HDR">
<div id="GLHDR" style="WIDTH: 100%" align="right"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">&#160; </font></div>
</div>
</div>

<br>
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Pursuant to Rule 13d-2 of Regulation 13D-G of the General Rules and Regulations under the Securities Exchange Act of 1934, as amended, the undersigned, Ronald L. Chez (the "Reporting Person") hereby amends his statement on Schedule 13D dated January 30, 2007, as amended by Amendment No. 1 to Schedule 13D dated July 13, 2007; Amendment No. 2 to Schedule 13D dated October 20, 2008; Amendment No. 3 to Schedule 13D dated June 20, 2011; Amendment No. 4 to Schedule 13D dated July 13, 2011; and Amendment No. 5 to Schedule 13D dated August 15, 2011&#160;&#160;(collectively, the &#8220;Schedule 13D&#8221;).&#160;&#160;This Statement constitutes Amendment No. 6 to the Schedule 13D.&#160;&#160;Unless otherwise indicated herein, there are no material changes to the information set forth in the Schedule 13D.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item 4.&#160;&#160;&#160; </font><font style="DISPLAY: inline; FONT-WEIGHT: bold">Purpose of Transaction</font> is hereby amended by adding thereto the following<font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font></font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">On January 25, 2012, the Reporting Person sent an letter to Karen Dawes, Co-Chairperson of the Board of the Issuer, and Walter Herlihy, Chief Executive Officer of the Issuer.&#160;&#160;The contents of the e-mail are attached as Annex A to this Amendment No. 6 to Schedule 13D.</font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Item 5.</font>&#160;&#160;&#160; <font style="DISPLAY: inline; FONT-WEIGHT: bold">Interest in Securities of the Issuer </font>is hereby amended and restated in its entirety as follows<font style="DISPLAY: inline; FONT-WEIGHT: bold">:</font></font></div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 27pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">(a)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">The aggregate number of shares of the Stock owned beneficially by the Reporting Person is 2,815,631 (the "Shares") constituting approximately 9.2% of the outstanding shares of the Stock.&#160;&#160;&#160;The percentages in this Item&#160;&#160;5(a) are based upon 30,714,757 shares of the Issuer&#8217;s common stock issued and outstanding as of October 31, 2011, as reported on the Issuer&#8217;s Form 10-Q for the fiscal quarter ended September 30, 2011.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 27pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">(b)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">The Reporting Person has the sole power (and no shared power) to vote or dispose of or direct the disposition of Shares owned by such Reporting Person.</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div>
<table cellpadding="0" cellspacing="0" id="list" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td align="right" style="WIDTH: 27pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">(c)&#160;&#160;</font></div>
</td>
<td>
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">During the sixty (60) days prior to the filing of this Amendment to this Schedule 13D, the Reporting Person purchased shares of Stock (through open market transactions) as follows:</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

<div align="center">
<table cellpadding="0" cellspacing="0" width="60%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td valign="top" width="14%" style="BORDER-TOP: black 0.5pt solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">DATE</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-TOP: black 0.5pt solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">QUANTITY</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-TOP: black 0.5pt solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">PRICE PER SHARE</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">11/30/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1,100</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.3695</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/12/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">600</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.2391</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/13/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">100</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.2850</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/14/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">100</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.2550</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/15/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1,000</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.3355</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/16/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">2,000</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.2527</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/29/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">5,500</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.5724</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/29/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1,200</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.4895</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">12/30/11</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1,000</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.4655</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1/3/12</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">200</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.3695</font></div>
</td>
</tr><tr>
<td valign="top" width="14%" style="BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1/9/12</font></div>
</td>
<td valign="top" width="16%" style="BORDER-RIGHT: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">1,000</font></div>
</td>
<td valign="top" width="21%" style="BORDER-RIGHT: black 2px solid; BORDER-BOTTOM: black 2px solid">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif">$3.4895</font></div>
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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">SIGNATURE</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif"><font id="TAB1" style="MARGIN-LEFT: 36.45pt"></font>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.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Dated as of January 25, 2012</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman, serif; TEXT-DECORATION: underline"><font style="DISPLAY: inline">&#160;&#160;&#160;&#160; /s/ Barry Fischer&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif"><font style="DISPLAY: inline; TEXT-DECORATION: underline">Annex A</font></font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="right"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Chicago, IL 60610</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Repligen Corporation</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Attn: Karen Dawes</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Karen - As you know, I have discussed with you and Walter a significant checklist of issues that deal with Repligen strategic and operating issues.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">These issues, if handled correctly, have the potential to positively impact shareholder value, which is certainly long overdue. I have reviewed my concerns with significant Repligen shareholders over the past several months, and these owners of Repligen have provided ideas and constructive debate in an effort to help achieve a more positive return on our investment.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">There is one point that these shareholder&#8217;s and I can readily agree on: we are all very dissatisfied with the performance of our stock. Rather than enumerating my concerns in this letter, and rather that just talking with you and Walter (thank you for the time), I would like to request a meeting with the entire Board at the earliest possible time. I have important concerns that need to be dealt with now. I believe it is imperative to better align the interests of the Board and senior management with the owners of the company. As you are aware, I have ideas as to how this can be accomplished.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">In previous months, I have asked you to consider retaining an investment banker to provide objective, dispassionate commentary dealing with strategic alternatives that the entire Board should evaluate. I have provided you with the names of bankers who have experience and knowledge relevant to Repligen, and nothing has happened to the best of my knowledge.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">In addition to large shareholders, I have been reviewing alternatives with investment bankers. I would like to have one of these bankers join me to meet with the Board to consider a full range of actions on behalf of long term, unrewarded investors.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Our stock has recently traded at about $3.50, the approximate price of five years ago, and 10 years as well. Our company needs, now, to improve on this obviously lackluster performance. &#8220;When all is said and done&#8221; too much has been said without positive results, and much too little has been done.</font></div>

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<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman, serif">Karen, if you would provide me with a time(s) when a meeting with the Board can be held; and please assure me that each member of the Board will receive my letter.</font></div>

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5</div>

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