<SEC-DOCUMENT>0001104659-25-085819.txt : 20250829
<SEC-HEADER>0001104659-25-085819.hdr.sgml : 20250829
<ACCEPTANCE-DATETIME>20250829182435
ACCESSION NUMBER:		0001104659-25-085819
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250829
DATE AS OF CHANGE:		20250829

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Adaptimmune Therapeutics PLC
		CENTRAL INDEX KEY:			0001621227
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-37368
		FILM NUMBER:		251282364

	BUSINESS ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		60 JUBILEE AVENUE
		STREET 2:		MILTON PARK
		CITY:			ABINGDON, OXFORDSHIRE
		PROVINCE COUNTRY:   	X0
		BUSINESS PHONE:		44 1235 430000

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		60 JUBILEE AVENUE
		STREET 2:		MILTON PARK
		CITY:			ABINGDON, OXFORDSHIRE
		PROVINCE COUNTRY:   	X0

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Adaptimmune Ltd
		DATE OF NAME CHANGE:	20141001

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Bertrand William C JR
		CENTRAL INDEX KEY:			0001291937
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O ADAPTIMMUNE THERAPEUTICS PLC
		STREET 2:		60 JUBILEE AVE, MILTON PARK
		CITY:			ABINGDON, OXFORDSHIRE
		STATE:			X0
		ZIP:			OX14 4RX
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>144</submissionType>
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          <cik>0001291937</cik>
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      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0001621227</issuerCik>
      <issuerName>Adaptimmune Therapeutics PLC</issuerName>
      <secFileNumber>001-37368</secFileNumber>
      <issuerAddress>
        <com:street1>60 Jubilee Avenue</com:street1>
        <com:street2>Milton Park</com:street2>
        <com:city>Abingdon Oxfordshire</com:city>
        <com:stateOrCountry>X0</com:stateOrCountry>
        <com:zipCode>OX14 4RX</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>44-1235-430000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>William Bertrand</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Chief Operating Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>ETrade by Morgan Stanley</name>
        <address>
          <com:street1>200 Hudson Street, Suite 501</com:street1>
          <com:city>New Jersey</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>07311</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>34500</noOfUnitsSold>
      <aggregateMarketValue>2070.00</aggregateMarketValue>
      <noOfUnitsOutstanding>256032610</noOfUnitsOutstanding>
      <approxSaleDate>08/28/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>American Depositary Shares</securitiesClassTitle>
      <acquiredDate>12/14/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Open market purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Not known</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>34500</amountOfSecuritiesAcquired>
      <paymentDate>12/14/2020</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/29/2025</noticeDate>
      <signature>/s/ William Bertrand</signature>
    </noticeSignature>
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