<SEC-DOCUMENT>0001104659-25-013682.txt : 20250214
<SEC-HEADER>0001104659-25-013682.hdr.sgml : 20250214
<ACCEPTANCE-DATETIME>20250214112334
ACCESSION NUMBER:		0001104659-25-013682
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250214
DATE AS OF CHANGE:		20250214

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
		IRS NUMBER:				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:		25625062

	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:           	
		IRS NUMBER:				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>
<XML>
<?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>9</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</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>19424633.00</soleVotingPower>
        <sharedVotingPower>359126.00</sharedVotingPower>
        <soleDispositivePower>20814752.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>20814752.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>11.21</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>CERUS CORP</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>1220 Concord Avenue, Suite 600 Concord, CA, 94520</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>ARK Investment Management LLC</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>200 Central Avenue, St. Petersburg, FL 33701</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Delaware</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>20,814,752</amountBeneficiallyOwned>
        <classPercent>11.21</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>19,424,633</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>359,126</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>20,814,752</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>To the knowledge of the Reporting Person, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, a number of the shares which represents more than five percent of the number of shares outstanding class of the shares.</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>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
