<SEC-DOCUMENT>0001229765-26-000006.txt : 20260313
<SEC-HEADER>0001229765-26-000006.hdr.sgml : 20260313
<ACCEPTANCE-DATETIME>20260313210515
ACCESSION NUMBER:		0001229765-26-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260311
FILED AS OF DATE:		20260313
DATE AS OF CHANGE:		20260313

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GRIFFIN MICHELLE RENEE
		CENTRAL INDEX KEY:			0001229765
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38957
		FILM NUMBER:		26754189

	MAIL ADDRESS:	
		STREET 1:		10757 18TH AVENUE SW
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98146

	FORMER NAME:	
		FORMER CONFORMED NAME:	BURRIS MICHELLE
		DATE OF NAME CHANGE:	20030429

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Adaptive Biotechnologies Corp
		CENTRAL INDEX KEY:			0001478320
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				270907024
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1165 EASTLAKE AVE E
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98109
		BUSINESS PHONE:		206-659-0067

	MAIL ADDRESS:	
		STREET 1:		1165 EASTLAKE AVE E
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98109

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Adaptive TCR Corp
		DATE OF NAME CHANGE:	20091209
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-03-11</periodOfReport>

    <issuer>
        <issuerCik>0001478320</issuerCik>
        <issuerName>Adaptive Biotechnologies Corp</issuerName>
        <issuerTradingSymbol>ADPT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229765</rptOwnerCik>
            <rptOwnerName>GRIFFIN MICHELLE RENEE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADAPTIVE BIOTECHNOLOGIES CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>1165 EASTLAKE AVENUE EAST</rptOwnerStreet2>
            <rptOwnerCity>SEATTLE</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98109</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-03-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15394</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>13.91</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15625</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported for this transaction is a weighted-average price. The shares were sold in multiple transactions ranging from $13.84 to $13.96, inclusive. The reporting person undertakes to provide to Adaptive Biotechnologies Corporation, any security holder of Adaptive Biotechnologies Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in any footnotes to this Form 4.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michelle Renee Griffin by Kyle Piskel, Attorney-in-Fact</signatureName>
        <signatureDate>2026-03-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
