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<headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0000059478</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Common Stock, par value $0.0001 per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>04/09/2026</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0002108121</issuerCik>
        <issuerName>Ionetix Corp / DE /</issuerName>
        <issuerCusips>
          <issuerCusipNumber>000000000</issuerCusipNumber>
        </issuerCusips>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>3130 SOVEREIGN DRIVE</com:street1>
          <com:city>LANSING</com:city>
          <com:stateOrCountry>MI</com:stateOrCountry>
          <com:zipCode>48911</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(d)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>ELI LILLY &amp; Co</reportingPersonName>
      <citizenshipOrOrganization>IN</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>8411397.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>8411397.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>8411397.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>7.9</classPercent>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Ionetix Corp / DE /</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>3130 SOVEREIGN DRIVE, LANSING, MICHIGAN, 48911.</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Eli Lilly and Company</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>Lilly Corporate Center
Indianapolis, Indiana 46285</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Eli Lilly and Company is an Indiana corporation</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>8,411,397</amountBeneficiallyOwned>
        <classPercent>7.98%</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>8,411,397</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>N/A</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>8,411,397</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>N/A</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
        <classOwnership5PercentOrLess>N</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
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      <item10>
        <notApplicableFlag>Y</notApplicableFlag>
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    </items>
    <signatureInformation>
      <reportingPersonName>ELI LILLY &amp; Co</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Christopher Anderson</signature>
        <title>Vice President - Leader of Corporate Securities and Assistant Corporate Secretary</title>
        <date>07/24/2026</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
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