<SUBMISSION>
<ACCESSION-NUMBER>0001104659-03-011800
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>3
<PERIOD>20030605
<ITEMS>5
<ITEMS>7
<FILING-DATE>20030605
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CERUS CORP
<CIK>0001020214
<ASSIGNED-SIC>2836
<IRS-NUMBER>680262011
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-21937
<FILM-NUMBER>03734627
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2411 STANWELL DR
<CITY>CONCORD
<STATE>CA
<ZIP>94520
<PHONE>9252886000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2525 STANWELL DRIVE
<STREET2>STE 300
<CITY>CONCORD
<STATE>CA
<ZIP>94520
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>CERUS TECHNOLOGIES INC
<DATE-CHANGED>19960731
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>j1849_8k.htm
<DESCRIPTION>8-K
<TEXT>
<html>



<head>



<title>  </title>



</head>



<body>



<div style="font-family:'Times New Roman';">



<div style="border:none;border-top:double windowtext 9.0pt;padding:0in 0in 0in 0in;">



<p align="left" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



</div>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C. 20549</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM 8-K</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b><font size="3" style="font-size:12.0pt;"><br>

<b><font style="font-weight:bold;">Pursuant

to Section 13 or 15(d) of the</font></b><br>

<b><font style="font-weight:bold;">Securities

Exchange Act of 1934</font></b></font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Date of

Report (Date of earliest event reported):&#160;

June 5, 2003</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">CERUS CORPORATION</font></b></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant

as specified in its charter)</font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<div align="center">



<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">

 <tr>

  <td width="33%" valign="top" style="padding:0in 0in 0in 0in;width:33.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="33%" valign="top" style="padding:0in 0in 0in 0in;width:33.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">0-21937</font></b></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">68-0262011</font></b></p>

  </td>

 </tr>

 <tr>

  <td width="33%" valign="top" style="padding:0in 0in 0in 0in;width:33.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State of jurisdiction)</font></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="33%" valign="top" style="padding:0in 0in 0in 0in;width:33.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File No.)</font></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="34%" valign="top" style="padding:0in 0in 0in 0in;width:34.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer

  Identification No.)</font></p>

  </td>

 </tr>

</table>



</div>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2411

Stanwell Drive<br>

Concord, California 94520</font></b></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of

principal executive offices and zip code)</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s

telephone number, including area code: <b><font style="font-weight:bold;">(925)

288-6000</font></b></font></p>



<div style="border:none;border-bottom:double windowtext 9.0pt;padding:0in 0in 0in 0in;">



<p align="left" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



</div>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>





<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='',FILE='C:\C2\jpatrow\1849_1\t_1612158\j1849_8k.htm',USER='jpatrow',CD='Jun  5 15:43 2003' -->
<br clear="all" style="page-break-before:always;">

</font>



<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.&#160; Other Events.</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On June 5, 2003, Cerus

Corporation (the &#147;Company&#148;) announced that it has commenced a public offering

of 6,000,000 shares of its common stock.&#160;

Morgan Stanley &amp; Co. Incorporated is acting as the underwriter for

the offering.&#160; A copy of the Company&#146;s

press release is attached as Exhibit 99.1 hereto and is incorporated herein by

reference.</font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 7.&#160; Exhibits.</font></b></p>



<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">

 <tr>

  <td width="7%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:7.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit<br>

  Number</font></b></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

  </td>

  <td width="91%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:91.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description

  of Exhibit</font></b></p>

  </td>

 </tr>

 <tr>

  <td width="7%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:7.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="91%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:91.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press Release, dated

  June 5, 2003, entitled &#147;Cerus Corporation Public Offering Of Common Stock.&#148;</font></p>

  </td>

 </tr>

</table>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>





<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='2',FILE='C:\C2\jpatrow\1849_1\t_1612158\j1849_8k.htm',USER='jpatrow',CD='Jun  5 15:43 2003' -->
<br clear="all" style="page-break-before:always;">

</font>



<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">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></p>



<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CERUS CORPORATION</font></b></p>

  </td>

 </tr>

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

 </tr>

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

 </tr>

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated:&#160; June 5, 2003</font></p>

  </td>

  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.74%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>

  </td>

  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.04%;">

  <p align="left" style="margin:0in 0in .0001pt 20.0pt;text-align:left;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/&#160; Gregory

  W. Schafer</font></p>

  </td>

  <td width="15%" valign="top" style="padding:0in 0in 0in 0in;width:15.22%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

 </tr>

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.74%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.26%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Gregory W. Schafer</font></p>

  </td>

 </tr>

 <tr>

  <td width="50%" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.74%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.26%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Vice President, Finance

  and<br>

  Chief Financial Officer</font></p>

  </td>

 </tr>

</table>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>





<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='3',FILE='C:\C2\jpatrow\1849_1\t_1612158\j1849_8k.htm',USER='jpatrow',CD='Jun  5 15:43 2003' -->
<br clear="all" style="page-break-before:always;">

</font>



<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Index to Exhibits</font></b></p>



<p style="margin:0in 0in .0001pt;text-align:justify;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">

 <tr>

  <td width="7%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:7.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit<br>

  Number</font></b></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

  </td>

  <td width="91%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:91.0%;">

  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description

  of Exhibit</font></b></p>

  </td>

 </tr>

 <tr>

  <td width="7%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:7.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>

  </td>

  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">

  <p align="left" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:left;">&nbsp;</p>

  </td>

  <td width="91%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:91.0%;">

  <p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press Release, dated

  June 5, 2003, entitled &#147;Cerus Corporation Public Offering Of Common Stock.&#148;</font></p>

  </td>

 </tr>

</table>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>





<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



</div>



</body>



</html>

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>j1849_ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
<html>



<head>



<title>  </title>



</head>



<body>



<div style="font-family:'Times New Roman';">



<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit 99.1</font></b></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman"><img width="188" height="38" src="j1849ex99d1image002.gif"></font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Contact:</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Greg Schafer</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Financial Officer</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Cerus Corporation</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(925) 288-6109</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<h1 align="center" style="margin:0in 0in .0001pt;page-break-after:auto;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">CERUS

CORPORATION PUBLIC OFFERING OF COMMON STOCK</font></b></h1>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CONCORD, Calif., June 5, 2003 &#150; Cerus Corporation (Nasdaq: CERS) today

announced that it has commenced a public offering of 6,000,000 shares of its

common stock. Morgan Stanley &amp; Co. Incorporated is acting as the

underwriter for the offering.</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This press release shall not constitute an offer to sell or the

solicitation of an offer to buy, nor shall there be any sale of these

securities in any jurisdiction in which such offer, solicitation or sale would

be unlawful prior to registration or qualification under the securities laws of

any such jurisdiction.&#160; This offering is

being made only by means of a prospectus.&#160;

Copies of the prospectus can be obtained from Morgan Stanley &amp; Co.

Incorporated or by calling the Company.</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ABOUT CERUS</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Cerus Corporation is developing medical systems and therapeutics to

provide safer and more effective options to patients. The company is developing

products based on its proprietary Helinx<sup>&#174; </sup>technology for controlling

biological replication. Cerus&#146; most advanced programs are focused on systems to

enhance the safety of the world&#146;s blood supply. The INTERCEPT Blood System,

which is being developed in collaboration with subsidiaries of Baxter

International Inc. is based on the company&#146;s Helinx technology.&#160; The Intercept Blood System is designed to

inactivate viruses, bacteria, other pathogens</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>





<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='',FILE='C:\C2\jpatrow\1849_1\t_1612158\j1849_ex99d1.htm',USER='jpatrow',CD='Jun  5 15:44 2003' -->
<br clear="all" style="page-break-before:always;">

</font>



<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">and white blood cells. The Concord, California-based company also is

pursuing therapeutic applications of Helinx technology to treat and prevent

serious diseases.</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Helinx</font></i>

is a trademark of Cerus Corporation</p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">INTERCEPT and INTERCEPT Blood are trademarks of Baxter International

Inc.</font></p>



<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">###</font></p>



<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>





<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">



<hr size="2" width="100%" noshade color="gray" align="left">



</font></div>



</div>



</body>



</html>

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>j1849ex99d1image002.gif
<DESCRIPTION>J1849EX99D1IMAGE002.GIF
<TEXT>
begin 644 j1849ex99d1image002.gif
M1TE&.#EAO``F`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-O9G0@3V9F:6-E`"P`
M````O``F`(8````S``!F``"9````,P`S,P!F,P"9,P```#,S`#-F`#.9`#,`
M,S,S,S-F,S.9,S,S9C-F9C.99C/,9C,S,V9F,V:9,V;,,V8S9F9F9F:99F;,
M9F9FF6:9F6;,F6:99IG,9IEFF9F9F9G,F9F9S)G,S)EF9IF9F<S,F<R9S,S,
MS,S_S,S,_\S__\S,S/__S/_,______\!`@,!`@,!`@,!`@,!`@,!`@,!`@,!
M`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!
M`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!
M`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!
M`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!
M`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,!`@,&_\"8<$@<7B3%I'+)
M;#J?T*AT2JU:BR"!P'/M>K_@L-@[$C@&BM%XS6Z[W\2503L7J.#XO'Y?U`H4
M"@8#`BUB+28-#`"+C`2,C!E.)Q&*CY8``8M%&9F6")>/!`T:,$R5BYE0+9<-
M2RT5!:"RCY%,@`Y::($*8!V=LY<:3`W`LD48Q<4$+DJ@4"Z7!4K$R;.U2F=^
MN((""P9>O]602A3BEYOFLR))L9:JK$GILL)*&MT"`[B[`G,/5BKR:"5Q%%`3
MD0P%+]TA\LG=$QCPB"2T9$))F3]UT/S9V&`#E543KPEIE[!(A(F/`A1)<.X)
MR$?2AB!$N4BD$!1T%*`Q$(B?F?\!<U!,*<:@0(.C2!,U2$#B(+"&`3X1((`@
M4X`$QRX1E)>"2#B#3J!9PCH$F%6I5#NQ1."H0Q$8"O[T]*:SKH$%&!<^J2`+
M02$JLRI6X6NI*Q,5U"PY('**T3M+,6.\D.76RP%^@P;5,9/+#YHHLC!8<0!*
MY969CRHWT1#-:\NPEQ@,(0%JG1>\@`PDT-4-%[]==7@Y$0$J,F!G79!9LNT$
MN9"&CZ!,MM1*"&M+!+Y(H'-OSH&>9N)N[&G!26-&+ZR(M03!R\GE4)S'V.KX
M8<08)F)[6<$Y]SWQ"N"E!7CBE<)$<5=P`(J!5Q#V"'--R'<>`-*U)@1JC"#@
M10;X^+3_D8=S\#1'/K\=X,^!E[1G16+1>:'<(Q\\T8%6KCGD!`OZ"3$"*(99
MD=-._?VTD49QX28`$R\]>(4L+(R0P@DHD)#"E"5`28*4**10`CKP-7>):$-,
M"`5$8PV1)"U_33$"3WZPB9$VFFV#&4]<*$'<)2PL21-80KSWB`,9!!IH!!A$
MD($#$R[28PPLV=C$"O?%@!(%6QJAA0-L`M53((/HTPV;XIV8Q)V.'K<GEZ<R
M]EH39P(@VQ`?[&F8;QH)V"9&G?K1$QH'+/%BBU;LR6<,&$Z4'A$DU>?$=#`5
MD6Q"7<TA)Z:!+*#/('/5\9T^2Q0[[%#"FK0GA$)\1:%+.1+1_RA*,>#EKF?B
M`24D7J#Z<:02WIX;;+A$_%K0$O1]JP2DD"F1PKH%A1#BI21B%)=X#7#FTS8*
MI$D$J<!6(4L(&GR0P0<<<`RR"1U\H$$('],CTT1-("QP$NLQ4MT2*&30``00
M-%!!`Q1$<-0L#;Q[68E_`/EA79EIL40)H#"SKR6F=>%M!2*($$+5'6#,R*)%
M0*=L$V0^,G,7LF@F%SX`SA$7+KYMM@V*A5W!XM=6^`M`4TG,_7(,S^K;!$`%
M?W$"*`YPFM-/N&A:!YMG!`?W(Q&<!LJQ#5Y";EF7+*:$UXODZ<2,EE0`1JL`
M3""7(#KI*O%XV(*JN1)]^SU%V`)UX?\G(ZJAFC$1MR\2HQ-VV_0/*&4$QT_A
M/HF'J=FW>K3$X)=PH.>J5=A].>:!Z[[(JQ%>HL87=FOH\&4+:!;7`6<\S)-.
M/*%!>3,\6J'@Y%?T#L#U-X&BUQ"`6R(4$[&BGA5VU)H'I$Y$15)=TN05JN',
MX@,D8,$+6*""%:R`@A.T((,D)8L"F*`$,%A!"UPPP1>HP`4L6,$&B66Y)B0*
M?I?('1&N(\`*.*`"A<HAH0Q5@0I$H`*)JDD,^#.B#E'L,CW1!Z?FL((GT$0D
M.&(7$1S$"/QAKW93!%H%0M`!F\U"94+H'TV.98^UK<X;W#&;>)`0GXE(CP@!
M+(E3NC0,^5SYL2#9*0*S4$(6(?#C+KE0@&\2%Q>>7.8[4PAB,@1#A!"PK%\Q
M=**%B$`Z<RB!=H\D0B!%-*0DCN=>4]":.(0GA(")0WOW>\+\++$_(>PQ'4N(
MXD3Z&(=!#@(?G!2/M)IHA1EQ#ABB6\(*&F!*8&3%$K_SD@"%(,I9),"*E4R&
M*#RWA`=H0Y#WN&7A7N<%&(P@`X7"H3@Q@`%P5H!K2QB!"#"`PT(9RE#N#.80
M1E!.'[*SE4M0`03>V4,'4--..>M$+!B0``Q8\6(B($'5%AH"=2ITH2)0@<6<
C,`+?!*!-X#DH'S;*T8[F4P(/^,Y='B"!_WGTI"CE0Q```#L_
`
end

</TEXT>
</DOCUMENT>
</SUBMISSION>
