<SEC-DOCUMENT>0001567619-23-001499.txt : 20230131
<SEC-HEADER>0001567619-23-001499.hdr.sgml : 20230131
<ACCEPTANCE-DATETIME>20230131130022
ACCESSION NUMBER:		0001567619-23-001499
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20221215
FILED AS OF DATE:		20230131
DATE AS OF CHANGE:		20230131

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SCHULER JACK W
		CENTRAL INDEX KEY:			0001021412

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39659
		FILM NUMBER:		23571388

	MAIL ADDRESS:	
		STREET 1:		100 N. FIELD DRIVE
		STREET 2:		SUITE 360
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIODESIX INC
		CENTRAL INDEX KEY:			0001439725
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				203986492
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2970 WILDERNESS PLACE
		STREET 2:		SUITE 100
		CITY:			BOULDER
		STATE:			CO
		ZIP:			80301
		BUSINESS PHONE:		303-417-0500

	MAIL ADDRESS:	
		STREET 1:		2970 WILDERNESS PLACE
		STREET 2:		SUITE 100
		CITY:			BOULDER
		STATE:			CO
		ZIP:			80301
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2022-12-15</periodOfReport>

    <dateOfOriginalSubmission>2022-12-19</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001439725</issuerCik>
        <issuerName>BIODESIX INC</issuerName>
        <issuerTradingSymbol>BDSX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001021412</rptOwnerCik>
            <rptOwnerName>SCHULER JACK W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2970 WILDERNESS PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>BOULDER</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-12-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.6476</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20319189</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Jack W. Schuler Living Trust</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.62 to $1.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range.</footnote>
        <footnote id="F2">Jack W. Schuler is the sole trustee of the Jack W. Schuler Living Trust.</footnote>
        <footnote id="F3">This amendment is being filed to correct the number of shares reported as purchased by the Jack W. Schuler Living Trust on December 15, 2022, which was inadvertently over-reported as 20,000 shares instead of 10,000 shares in the Form 4 filed by the Reporting Person on December 19, 2022.  As such, the total number of shares reported as beneficially owned by the Jack W. Schuler Living Trust in each Form 4 filed between December 19, 2022 and this Form 4 was inadvertently over-reported by 10,000 shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Robin H. Cowie as Attorney-in-Fact for Jack Schuler</signatureName>
        <signatureDate>2023-01-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
