<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <schemaVersion>X0202</schemaVersion>
<headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0002048490</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Common Stock, no par value</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>05/14/2026</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001437424</issuerCik>
        <issuerName>POET TECHNOLOGIES INC.</issuerName>
        <issuerCusips>
          <issuerCusipNumber>73044W302</issuerCusipNumber>
        </issuerCusips>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>120 EGLINTON AVENUE EAST</com:street1>
          <com:street2>SUITE 1107</com:street2>
          <com:city>TORONTO, ONTARIO</com:city>
          <com:stateOrCountry>A6</com:stateOrCountry>
          <com:zipCode>M4P 1E2</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(c)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Marex Securities Products Inc.</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>9150000.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>9150000.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>9150000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>6.0</classPercent>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Marex Group plc</reportingPersonName>
      <citizenshipOrOrganization>X0</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>9150000.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>9150000.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>915000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>6.0</classPercent>
      <typeOfReportingPerson>OO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>POET TECHNOLOGIES INC.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>120 EGLINTON AVENUE EAST, SUITE 1107, TORONTO, ONTARIO, ONTARIO, CANADA, M4P 1E2.</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Marex Securities Products, Inc.
Marex Group plc</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>Marex Securities Products, Inc. 140?East?45th?Street,?Floor?10?&amp;?11
New?York, NY 10017

Marex Group plc
155 Bishopsgate
London, X0 EC2M 3TQ
</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Marex Securities Products, Inc.
Delaware

Marex Group plc
United Kingdom</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>9150000</amountBeneficiallyOwned>
        <classPercent>6</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>9150000</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>9150000</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
        <classOwnership5PercentOrLess>N</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </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 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 &amp;#167; 240.14a-11.

</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Marex Securities Products Inc.</reportingPersonName>
      <signatureDetails>
        <signature>Jennifer Kaiser</signature>
        <title>COO</title>
        <date>05/19/2026</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Marex Group plc</reportingPersonName>
      <signatureDetails>
        <signature>Scott Linsley</signature>
        <title>Corporate Secretary</title>
        <date>05/06/2026</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
