<html>
<head>
    <title>form8-k.htm</title>
    <!-- Licensed to: Emergent BioSolutions -->
    <!-- Document Created using EDGARizer 5.2.3.0 -->
    <!-- Copyright 1995 - 2009 Thomson Reuters. All rights reserved. -->
</head>


<body bgcolor="#ffffff" style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
<br>
<br>
<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">UNITED STATES</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION</font></div>

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

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

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">_________________________</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Form 8-K</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">CURRENT REPORT</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to Section 13 or 15(d) of the</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Securities Exchange Act of 1934</font></div>

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

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

<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 valign="top" width="36%">
<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">Date of Report</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">(Date of Earliest Event Reported):</font></div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">October 28, 2010</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Trubion Pharmaceuticals, Inc.</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">(Exact Name of Registrant as Specified in Charter)</font></div>

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

<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 valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Delaware</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">(State or Other Jurisdiction</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">of Incorporation)</font></div>
</td>
<td valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">001-33054</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">(Commission File No.)</font></div>
</td>
<td valign="top" width="24%">
<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">52-2385898</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">(IRS Employer</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">Identification No.)</font></div>
</td>
</tr><tr>
<td colspan="3" valign="top" width="72%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">2401 Fourth Avenue, Suite 1050, Seattle, WA&#160;&#160;98121</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">(Address of Principal Executive Offices, including Zip Code)</font></div>
</td>
</tr><tr>
<td colspan="3" valign="top" width="72%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">(206) 838-0500</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">(Registrant's Telephone Number, Including Area Code)</font></div>
</td>
</tr><tr>
<td colspan="3" valign="top" width="72%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">None</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">(Former Name or Former Address, if Changed Since Last Report)</font></div>
</td>
</tr></table>
</div>

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><br>
</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">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></div>

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

<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 align="left" valign="top" width="2%">
<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">&#61551;</font></div>
</td>
<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="75%">
<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">Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</font></div>
</td>
</tr><tr>
<td align="left" valign="middle" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="75%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td align="left" valign="top" width="2%">
<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">&#61551;</font></div>
</td>
<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="75%">
<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">Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></div>
</td>
</tr><tr>
<td align="left" valign="middle" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="75%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td align="left" valign="top" width="2%">
<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">&#61551;</font></div>
</td>
<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="75%">
<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">Pre-commencement communications pursuant to Rule&#160;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></div>
</td>
</tr><tr>
<td align="left" valign="middle" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td valign="middle" width="75%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
</tr><tr>
<td align="left" valign="top" width="2%">
<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">&#61551;</font></div>
</td>
<td align="left" valign="top" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">&#160; </font></td>
<td align="left" valign="top" width="75%">
<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">Pre-commencement communications pursuant to Rule&#160;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></div>
</td>
</tr></table>
</div>

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

<br>
<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: 8pt; FONT-FAMILY: Times New Roman">&#160; </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; TEXT-INDENT: 0pt"><br>
</div>

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 2.01</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Completion of Acquisition or Disposition of Assets.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">On October 28, 2010, pursuant to an Agreement and Plan of Merger dated August 12, 2010, as amended (the &#8220;Merger Agreement&#8221;), by and among Emergent BioSolutions Inc. (&#8220;Emergent&#8221;), 35406 LLC, a direct wholly-owned subsidiary of Emergent (the &#8220;Final Surviving Entity&#8221;), 30333 Inc., an indirect wholly-owned subsidiary of Emergent (&#8220;Merger Sub&#8221;) and Trubion Pharmaceuticals, Inc. (&#8220;Trubion&#8221;), Emergent completed its acquisition of Trubion.&#160;&#160;Emergent&#8217;s acquisition of Trubion was effected by merging Merger Sub into Trubion, then merging Trubion into the Final Surviving Entity, which became a direct wholly-owned subsidiary of Emergent (the &#8220;Merger&#8221;).&#160;&#160;As consideration for the Merger and pursuant to the terms of the Merger Agreement, Emergent (i) paid an aggregate of $27.88 million in cash and issued an aggregate of 3,351,817 shares of Emergent common stock and 20,425,554 Contingent Value Rights (&#8220;CVRs&#8221;) to the holders of common stock of Trubion, and (ii) issued 1,677,827 CVRs to the holders of outstanding options to purchase Trubion common stock, which holders are also entitled to an aggregate of $3.86 million in cash payable by Trubion.</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">Holders of CVRs are entitled to receive a pro rata portion of certain contingent payments following the achievement of future development milestones under Trubion&#8217;s collaboration agreements with Pfizer Inc. and Abbott Laboratories, as described more fully in the Contingent Value Rights Agreement by and among Emergent, Trubion and Mellon Investor Services, as rights agent, dated August 12, 2010, and filed by the registrant with its Current Report on Form 8-K filed with the Securities and Exchange Commission (&#8220;SEC&#8221;) on August 13, 2010 (the &#8220;CVR&#160;&#160;Agreement&#8221;).</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">The foregoing descriptions of the transaction, the Merger Agreement and the CVR Agreement do not purport to be complete and are qualified in their entirety by reference to the Merger Agreement and CVR Agreement, which are filed as exhibits to this report and incorporated herein by reference.</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">The Merger Agreement and the transactions contemplated thereby, including the Merger, were approved by Trubion&#8217;s board of directors and its stockholders.&#160;&#160;Trubion stockholders approved the Merger Agreement at a special meeting of Trubion stockholders held on October 28, 2010.&#160;&#160;Trubion&#8217;s stockholders cast 16,435,104 votes for and 21,749 votes against approval of the Merger Agreement. There were 800 abstentions with respect to the approval of the Merger Agreement.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 3.01</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">In connection with the completion of the Merger on October 28, 2010, Trubion has notified NASDAQ that the Merger has been completed, and trading of Trubion common stock on the NASDAQ Global Market has been suspended.&#160;&#160;Following the completion of the Merger, NASDAQ filed with the Securities and Exchange Commission an application on Form 25 to delist Trubion&#8217;s common stock from the NASDAQ Global Market and deregister Trubion&#8217;s common stock under Section 12(b) of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;).&#160;&#160;Trubion intends to file a certification on Form 15 requesting deregistration of Trubion&#8217;s common stock under Section 12(g) of the Exchange Act and the suspension of Trubion&#8217;s reporting obligations under Section 15(d) of the Exchange Act.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 3.03</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Material Modification to Rights of Security Holders.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">Pursuant to the Merger Agreement, at the effective time of the Merger (the &#8220;Effective Time&#8221;) and as a result of the Merger, on October 28, 2010, each share of Trubion common stock issued and outstanding immediately prior to the Effective Time was canceled and converted into the right to receive the following:</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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: 36pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#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: 10pt; FONT-FAMILY: Times New Roman">an amount in cash equal to $1.365;</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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: 36pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#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: 10pt; FONT-FAMILY: Times New Roman">0.1641 of a share of common stock of Emergent; and</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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: 36pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#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: 10pt; FONT-FAMILY: Times New Roman">one CVR.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">No fractional shares of Emergent common stock will be issued in the Merger, and Trubion stockholders will receive cash in lieu of fractional shares, if any, of the common stock of Emergent.</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">All outstanding stock options to purchase Trubion common stock were canceled at the Effective Time.&#160;&#160;Trubion stock options with an exercise price of $4.55 or above were canceled and extinguished without further liability for either Trubion or Emergent. Holders of Trubion stock options with an exercise price below $4.55 will receive, for each share of Trubion common stock subject to such option:</font></div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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: 36pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#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: 10pt; FONT-FAMILY: Times New Roman">a cash payment equal to the difference between $4.55 and the exercise price of such option; and</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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: 36pt">
<div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#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: 10pt; FONT-FAMILY: Times New Roman">one CVR.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">See Item 2.01 of this Current Report on Form 8-K, which is incorporated herein by reference.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 5.01</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Changes in Control of Registrant.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">See Items 2.01 and 3.03 of this Current Report on Form 8-K, which are incorporated herein by reference.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 5.02</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">At the Effective Time and as a result of the Merger, each member of Trubion&#8217;s board of directors was removed and each of Trubion&#8217;s statutory officers was removed.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 5.07</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Submission of Matters to a Vote of Security Holders.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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">The information in Item&#160;2.01 is incorporated herein by reference.</font></div>

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

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

<div>
<table align="center" border="0" cellpadding="0" cellspacing="0" id="hangingindent" width="100%" style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr valign="top">
<td style="WIDTH: 72pt">
<div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Item 9.01</font></div>
</td>
<td>
<div align="left"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Financial Statements and Exhibits.</font></div>
</td>
</tr></table>
</div>

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</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-STYLE: italic; FONT-FAMILY: Times New Roman">(d) Exhibits.</font></div>

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

<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 align="left" valign="top" width="10%">
<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">Exhibit Number</font></div>
</td>
<td valign="top" width="70%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Description of Exhibit</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">2.1</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Agreement and Plan of Merger dated as of August 12, 2010 (incorporated by reference to Exhibit 2.1 to Trubion&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">2.2</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Amendment No. 1 to Agreement and Plan of Merger, dated September 29, 2010 (incorporated by reference to Exhibit 99.1 to Trubion&#8217;s Current Report on Form 8-K filed on September 30, 2010).</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">10.1</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Contingent Value Rights Agreement dated as of August 12, 2010 (incorporated by reference to Exhibit 10.1 to Trubion&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).</font></div>
</td>
</tr></table>
</div>

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

<br>
<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: 8pt; FONT-FAMILY: Times New Roman">&#160; </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; TEXT-INDENT: 0pt"><br>
</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">SIGNATURES</font></div>

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

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

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></div>

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

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

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;TRUBION PHARMACEUTICALS, INC.</div>

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

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;By:&#160;<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;</font><font style="TEXT-DECORATION: underline">Jay G. Reilly</font></div>

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

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;Name: Jay G. Reilly</div>

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

<div style="DISPLAY: block; TEXT-INDENT: 0pt"><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font><font id="TAB2" style="LETTER-SPACING: 9pt">&#160;&#160;&#160;</font>&#160;Date:<font id="TAB2" style="LETTER-SPACING: 9pt">&#160;</font>October 29, 2010</div>

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

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

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

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

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

<br>
<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: 8pt; FONT-FAMILY: Times New Roman">&#160; </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="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">EXHIBIT INDEX</font></div>

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

<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 align="left" valign="top" width="10%">
<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">Exhibit Number</font></div>
</td>
<td valign="top" width="70%">
<div style="DISPLAY: block; TEXT-INDENT: 0pt">&#160;</div>

<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">Description of Exhibit</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">2.1</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Agreement and Plan of Merger dated as of August 12, 2010 (incorporated by reference to Exhibit 2.1 to Trubion&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">2.2</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Amendment No. 1 to Agreement and Plan of Merger, dated September 29, 2010 (incorporated by reference to Exhibit 99.1 to Trubion&#8217;s Current Report on Form 8-K filed on September 30, 2010).</font></div>
</td>
</tr><tr>
<td align="left" valign="top" width="10%">
<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">10.1</font></div>
</td>
<td align="left" valign="top" width="70%">
<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">Contingent Value Rights Agreement dated as of August 12, 2010 (incorporated by reference to Exhibit 10.1 to Trubion&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).</font></div>
</td>
</tr></table>
</div>

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

<br>
<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: 8pt; FONT-FAMILY: Times New Roman">&#160; </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>
</body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "form8-k.htm", "secsgml_size_bytes": 47445}]
{"company-data": {"conformed-name": "Trubion Pharmaceuticals, Inc", "cik": "0001298521", "assigned-sic": "2834", "irs-number": "000000000", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-33054", "film-number": "101149863"}, "business-address": {"street1": "2401 4TH AVENUE", "street2": "SUITE 1050", "city": "SEATTLE", "state": "WA", "zip": "98121", "phone": "2068380500"}, "mail-address": {"street1": "2401 4TH AVENUE", "street2": "SUITE 1050", "city": "SEATTLE", "state": "WA", "zip": "98121"}}
form8-k.htm
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_________________________
Form 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report
(Date of Earliest Event Reported):
October 28, 2010
Trubion Pharmaceuticals, Inc.
(Exact Name of Registrant as Specified in Charter)
Delaware
(State or Other Jurisdiction
of Incorporation)
001-33054
(Commission File No.)
52-2385898
(IRS Employer
Identification No.)
2401 Fourth Avenue, Suite 1050, Seattle, WA  98121
(Address of Principal Executive Offices, including Zip Code)
(206) 838-0500
(Registrant's Telephone Number, Including Area Code)
None
(Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 2.01
Completion of Acquisition or Disposition of Assets.
On October 28, 2010, pursuant to an Agreement and Plan of Merger dated August 12, 2010, as amended (the "Merger Agreement"), by and among Emergent BioSolutions Inc. ("Emergent"), 35406 LLC, a direct wholly-owned subsidiary of Emergent (the "Final Surviving Entity"), 30333 Inc., an indirect wholly-owned subsidiary of Emergent ("Merger Sub") and Trubion Pharmaceuticals, Inc. ("Trubion"), Emergent completed its acquisition of Trubion.  Emergent's acquisition of Trubion was effected by merging Merger Sub into Trubion, then merging Trubion into the Final Surviving Entity, which became a direct wholly-owned subsidiary of Emergent (the "Merger").  As consideration for the Merger and pursuant to the terms of the Merger Agreement, Emergent (i) paid an aggregate of $27.88 million in cash and issued an aggregate of 3,351,817 shares of Emergent common stock and 20,425,554 Contingent Value Rights ("CVRs") to the holders of common stock of Trubion, and (ii) issued 1,677,827 CVRs to the holders of outstanding options to purchase Trubion common stock, which holders are also entitled to an aggregate of $3.86 million in cash payable by Trubion.
Holders of CVRs are entitled to receive a pro rata portion of certain contingent payments following the achievement of future development milestones under Trubion's collaboration agreements with Pfizer Inc. and Abbott Laboratories, as described more fully in the Contingent Value Rights Agreement by and among Emergent, Trubion and Mellon Investor Services, as rights agent, dated August 12, 2010, and filed by the registrant with its Current Report on Form 8-K filed with the Securities and Exchange Commission ("SEC") on August 13, 2010 (the "CVR  Agreement").
The foregoing descriptions of the transaction, the Merger Agreement and the CVR Agreement do not purport to be complete and are qualified in their entirety by reference to the Merger Agreement and CVR Agreement, which are filed as exhibits to this report and incorporated herein by reference.
The Merger Agreement and the transactions contemplated thereby, including the Merger, were approved by Trubion's board of directors and its stockholders.  Trubion stockholders approved the Merger Agreement at a special meeting of Trubion stockholders held on October 28, 2010.  Trubion's stockholders cast 16,435,104 votes for and 21,749 votes against approval of the Merger Agreement. There were 800 abstentions with respect to the approval of the Merger Agreement.
Item 3.01
Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.
In connection with the completion of the Merger on October 28, 2010, Trubion has notified NASDAQ that the Merger has been completed, and trading of Trubion common stock on the NASDAQ Global Market has been suspended.  Following the completion of the Merger, NASDAQ filed with the Securities and Exchange Commission an application on Form 25 to delist Trubion's common stock from the NASDAQ Global Market and deregister Trubion's common stock under Section 12(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act").  Trubion intends to file a certification on Form 15 requesting deregistration of Trubion's common stock under Section 12(g) of the Exchange Act and the suspension of Trubion's reporting obligations under Section 15(d) of the Exchange Act.
Item 3.03
Material Modification to Rights of Security Holders.
Pursuant to the Merger Agreement, at the effective time of the Merger (the "Effective Time") and as a result of the Merger, on October 28, 2010, each share of Trubion common stock issued and outstanding immediately prior to the Effective Time was canceled and converted into the right to receive the following:
·
an amount in cash equal to $1.365;
·
0.1641 of a share of common stock of Emergent; and
·
one CVR.
No fractional shares of Emergent common stock will be issued in the Merger, and Trubion stockholders will receive cash in lieu of fractional shares, if any, of the common stock of Emergent.
All outstanding stock options to purchase Trubion common stock were canceled at the Effective Time.  Trubion stock options with an exercise price of $4.55 or above were canceled and extinguished without further liability for either Trubion or Emergent. Holders of Trubion stock options with an exercise price below $4.55 will receive, for each share of Trubion common stock subject to such option:
·
a cash payment equal to the difference between $4.55 and the exercise price of such option; and
·
one CVR.
See Item 2.01 of this Current Report on Form 8-K, which is incorporated herein by reference.
Item 5.01
Changes in Control of Registrant.
See Items 2.01 and 3.03 of this Current Report on Form 8-K, which are incorporated herein by reference.
Item 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
At the Effective Time and as a result of the Merger, each member of Trubion's board of directors was removed and each of Trubion's statutory officers was removed.
Item 5.07
Submission of Matters to a Vote of Security Holders.
The information in Item 2.01 is incorporated herein by reference.
Item 9.01
Financial Statements and Exhibits.
(d) Exhibits.
Exhibit Number
Description of Exhibit
2.1
Agreement and Plan of Merger dated as of August 12, 2010 (incorporated by reference to Exhibit 2.1 to Trubion's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).
2.2
Amendment No. 1 to Agreement and Plan of Merger, dated September 29, 2010 (incorporated by reference to Exhibit 99.1 to Trubion's Current Report on Form 8-K filed on September 30, 2010).
10.1
Contingent Value Rights Agreement dated as of August 12, 2010 (incorporated by reference to Exhibit 10.1 to Trubion's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
TRUBION PHARMACEUTICALS, INC.
By:
Jay G. Reilly
Name: Jay G. Reilly
Date:
October 29, 2010
EXHIBIT INDEX
Exhibit Number
Description of Exhibit
2.1
Agreement and Plan of Merger dated as of August 12, 2010 (incorporated by reference to Exhibit 2.1 to Trubion's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).
2.2
Amendment No. 1 to Agreement and Plan of Merger, dated September 29, 2010 (incorporated by reference to Exhibit 99.1 to Trubion's Current Report on Form 8-K filed on September 30, 2010).
10.1
Contingent Value Rights Agreement dated as of August 12, 2010 (incorporated by reference to Exhibit 10.1 to Trubion's Current Report on Form 8-K filed with the Securities and Exchange Commission on August 13, 2010).