<SEC-DOCUMENT>0001177719-26-000017.txt : 20260505
<SEC-HEADER>0001177719-26-000017.hdr.sgml : 20260505
<ACCEPTANCE-DATETIME>20260505161853
ACCESSION NUMBER:		0001177719-26-000017
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20260505
DATE AS OF CHANGE:		20260505

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IMAX CORP
		CENTRAL INDEX KEY:			0000921582
		STANDARD INDUSTRIAL CLASSIFICATION:	PHOTOGRAPHIC EQUIPMENT & SUPPLIES [3861]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				980140269
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-48199
		FILM NUMBER:		26943533

	BUSINESS ADDRESS:	
		STREET 1:		2525 SPEAKMAN DRIVE
		CITY:			MISSISSAUGA
		STATE:			A6
		ZIP:			L5K 1B1
		BUSINESS PHONE:		9054036500

	MAIL ADDRESS:	
		STREET 1:		2525 SPEAKMAN DRIVE
		CITY:			MISSISSAUGA
		STATE:			A6
		ZIP:			L5K 1B1

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTFIELD CAPITAL MANAGEMENT CO LP
		CENTRAL INDEX KEY:			0001177719
		ORGANIZATION NAME:           	
		EIN:				800175963
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		ONE FINANCIAL CENTER
		STREET 2:		23RD FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111
		BUSINESS PHONE:		6174287100

	MAIL ADDRESS:	
		STREET 1:		ONE FINANCIAL CENTER
		STREET 2:		23RD FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WESTFIELD CAPITAL MANAGEMENT CO LLC
		DATE OF NAME CHANGE:	20020717
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:ns1="http://www.sec.gov/edgar/common">
  <schemaVersion>X0202</schemaVersion>
<headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001177719</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>04/30/2026</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000921582</issuerCik>
        <issuerName>IMAX CORP</issuerName>
        <issuerCusips>
          <issuerCusipNumber>45245E109</issuerCusipNumber>
        </issuerCusips>
        <issuerPrincipalExecutiveOfficeAddress>
          <ns1:street1>2525 SPEAKMAN DRIVE</ns1:street1>
          <ns1:city>MISSISSAUGA</ns1:city>
          <ns1:stateOrCountry>A6</ns1:stateOrCountry>
          <ns1:zipCode>L5K 1B1</ns1:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Westfield Capital Management Company, L.P.</reportingPersonName>
      <citizenshipOrOrganization>MA</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>2572557</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>2704872</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>2704872</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.01</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>IMAX CORP</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>2525 SPEAKMAN DRIVE, MISSISSAUGA, ONTARIO, CANADA
L5K 1B1</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Westfield Capital Management Company, L.P.</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>1 Financial Center, 24th Floor
Boston, Massachusetts
02111</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Westfield Capital Management Company, L.P. - MASSACHUSETTS</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>2,704,872</amountBeneficiallyOwned>
        <classPercent>5.01</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>Westfield Capital Management Company, L.P. - 2,572,557</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>Westfield Capital Management Company, L.P. - 0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>Westfield Capital Management Company, L.P. - 2,704,872</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>Westfield Capital Management Company, L.P. - 0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>The shares of the security listed in this Schedule are owned of record by clients of Westfield Capital
Management Company, L.P. (Westfield) in its capacity as investment adviser. Westfield's clients have the
right to receive, or the power to direct the receipt of, dividends or proceeds from the sale of the shares. To
the best of Westfield's knowledge, no client has such right or power with respect to more than five percent of
this class of security.</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>Westfield Capital Management Company, L.P.</reportingPersonName>
      <signatureDetails>
        <signature>Brandi McMahon</signature>
        <title>Vice President, Deputy Chief Compliance Officer</title>
        <date>05/05/2026</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
