<SEC-DOCUMENT>0001104659-25-072060.txt : 20250730
<SEC-HEADER>0001104659-25-072060.hdr.sgml : 20250730
<ACCEPTANCE-DATETIME>20250730132105
ACCESSION NUMBER:		0001104659-25-072060
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250730
DATE AS OF CHANGE:		20250730

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CERUS CORP
		CENTRAL INDEX KEY:			0001020214
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				680262011
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-51875
		FILM NUMBER:		251165831

	BUSINESS ADDRESS:	
		STREET 1:		1220 CONCORD AVENUE
		STREET 2:		SUITE 600
		CITY:			CONCORD
		STATE:			CA
		ZIP:			94520
		BUSINESS PHONE:		9252886000

	MAIL ADDRESS:	
		STREET 1:		1220 CONCORD AVENUE
		STREET 2:		SUITE 600
		CITY:			CONCORD
		STATE:			CA
		ZIP:			94520

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CERUS TECHNOLOGIES INC
		DATE OF NAME CHANGE:	19960731

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARK Investment Management LLC
		CENTRAL INDEX KEY:			0001697748
		ORGANIZATION NAME:           	
		EIN:				464309299
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		200 CENTRAL AVENUE
		CITY:			ST. PETERSBURG
		STATE:			FL
		ZIP:			33701
		BUSINESS PHONE:		212-426-7040

	MAIL ADDRESS:	
		STREET 1:		200 CENTRAL AVENUE
		CITY:			ST. PETERSBURG
		STATE:			FL
		ZIP:			33701
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001104659-20-021159</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: ARK Investment Management LLC -->
          <cik>0001697748</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>10</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>06/30/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001020214</issuerCik>
        <issuerName>CERUS CORP</issuerName>
        <issuerCusip>157085101</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>1220 Concord Avenue</com:street1>
          <com:street2>Suite 600</com:street2>
          <com:city>Concord</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94520</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>ARK Investment Management LLC</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>17876831.00</soleVotingPower>
        <sharedVotingPower>299780.00</sharedVotingPower>
        <soleDispositivePower>19207604.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>19207604.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>10.05</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Catherine D. Wood</reportingPersonName>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>18176611.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>19207604.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>19207604.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>10.05</classPercent>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>CERUS CORP</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>1220 Concord Avenue, Suite 600 Concord, CA, 94520</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>(i) ARK Investment Management LLC ("ARK")
(ii) Catherine D. Wood</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>ARK and Catherine D. Wood: 200 Central Avenue, St. Petersburg, FL 33701</principalBusinessOfficeOrResidenceAddress>
        <citizenship>(i) ARK: Delaware
(ii) Catherine D. Wood: United States</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
        <typeOfPersonFiling>HC</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>ARK and Catherine D. Wood: 19,207,604</amountBeneficiallyOwned>
        <classPercent>ARK and Catherine D. Wood: 10.05%</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>(i) ARK: 17,876,831
(ii) Catherine D. Wood: 0</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>(i) ARK: 299,780
(ii) Catherine D. Wood: 18,176,611</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>(i) ARK: 19,207,604
(ii) Catherine D. Wood: 0</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>(i) ARK: 0
(ii) Catherine D. Wood: 19,207,604</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>No client of ARK Investment Management LLC currently has an interest in the securities reported herein in excess of 5 percent except ARK Innovation ETF, a series of a Delaware statutory trust.</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>ARK Investment Management LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Kellen Carter</signature>
        <title>Kellen Carter, Chief Compliance Officer</title>
        <date>07/30/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Catherine D. Wood</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Catherine D. Wood</signature>
        <title>Catherine D. Wood, Chief Executive Officer, Chief Investment Officer</title>
        <date>07/30/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>

</edgarSubmission>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tm2521932d2_ex99-1.htm
<DESCRIPTION>EXHIBIT 1
<TEXT>
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     <TITLE></TITLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white">EXHIBIT 1</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">WHEREAS, in accordance
with Rule 13d-1(k)(1) under the Securities and Exchange Act of 1934 (the &quot;Act&quot;), only one joint Statement and any amendments
thereto need to be filed whenever one or more persons are required to file such a Statement or any amendments thereto pursuant to Section
13(d) of the Act with respect to the same securities, provided that said persons agree in writing that such Statement or amendments thereto
is filed on behalf of each of them;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">NOW, THEREFORE, the parties
hereto agree as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">ARK Investment Management
LLC and Catherine D. Wood do hereby agree, in accordance with Rule 13d-1(k)(1) under the Act, to file an Amendment No. 10 on Schedule
13G relating to their ownership of the Common Stock of the Issuer, and do hereby further agree that said Amendment No. 10 on Schedule
13G shall be filed on behalf of each of them.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; background-color: white">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; background-color: white; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARK Investment Management LLC</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date: July 30, 2025</FONT></TD>
    <TD STYLE="width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 47%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Kellen Carter </FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name: Kellen Carter</P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: Chief Compliance Officer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Catherine D. Wood</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date: July 30, 2025</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Catherine D. Wood</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name: Catherine D. Wood</P></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title: Chief Executive Officer, <BR>
Chief Investment Officer</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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</SEC-DOCUMENT>
