<SEC-DOCUMENT>0001209191-21-008753.txt : 20210209
<SEC-HEADER>0001209191-21-008753.hdr.sgml : 20210209
<ACCEPTANCE-DATETIME>20210209153335
ACCESSION NUMBER:		0001209191-21-008753
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210209
FILED AS OF DATE:		20210209
DATE AS OF CHANGE:		20210209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SHAH MAHENDRA
		CENTRAL INDEX KEY:			0001255449

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39988
		FILM NUMBER:		21606074

	MAIL ADDRESS:	
		STREET 1:		2250 HOLCOMBE BLVD
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77030

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Bolt Biotherapeutics, Inc.
		CENTRAL INDEX KEY:			0001641281
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				472804636
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		900 CHESAPEAKE DRIVE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063
		BUSINESS PHONE:		650-665-9295

	MAIL ADDRESS:	
		STREET 1:		900 CHESAPEAKE DRIVE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Bolt Therapeutics, Inc.
		DATE OF NAME CHANGE:	20150504
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
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    <periodOfReport>2021-02-09</periodOfReport>

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        <issuerName>Bolt Biotherapeutics, Inc.</issuerName>
        <issuerTradingSymbol>BOLT</issuerTradingSymbol>
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            <rptOwnerName>SHAH MAHENDRA</rptOwnerName>
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            <rptOwnerStreet2>900 CHESAPEAKE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>REDWOOD CITY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94063</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>62</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                    <footnoteId id="F2"/>
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            </ownershipNature>
        </nonDerivativeTransaction>
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    <derivativeTable>
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            <securityTitle>
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            </securityTitle>
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                <value>2021-02-09</value>
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            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>944056</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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                    <value>944056</value>
                </underlyingSecurityShares>
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                    <footnoteId id="F2"/>
                </natureOfOwnership>
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        </derivativeTransaction>
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                    <value>472296</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <exerciseDate>
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            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
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                    <value>Common Stock</value>
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                    <footnoteId id="F2"/>
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            <securityTitle>
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            </securityTitle>
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            <transactionDate>
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                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-07-26</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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    <footnotes>
        <footnote id="F1">The Series A-1 Preferred Stock automatically converted into shares of Common Stock of the Issuer on a 1:1 basis immediately upon closing of the Issuer's initial public offering (the &quot;IPO&quot;) and had no expiration date.</footnote>
        <footnote id="F2">The securities reported herein are held of record by Vivo PANDA Fund, L.P. (&quot;Vivo LP&quot;). Vivo Panda, LLC (&quot;Vivo LLC&quot;) is the sole general partner of Vivo LP. The Reporting Person is a managing member of Vivo LLC and has shared voting and investment power over the securities beneficially owned by Vivo LP and may therefore be deemed to have or share beneficial ownership of the securities held directly by Vivo LP. The Reporting Person disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">The Series B Preferred Stock automatically converted into shares of Common Stock of the Issuer on a 1:1 basis immediately upon closing of the Issuer's IPO and had no expiration date.</footnote>
        <footnote id="F4">Upon closing of the Issuer's IPO, Vivo LP exercised a warrant to purchase 17,711 shares of the Issuer's Common Stock at an exercise price per share of $0.07. Vivo LP paid the exercise price on a cashless basis, resulting in the Issuer withholding 62 share subject to the warrant in order to pay the exercise price and issuing to Vivo LP the remaining 17,649 shares of Common Stock.</footnote>
        <footnote id="F5">The shares subject to this warrant were fully vested prior to exercise.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brian Woodard, Attorney-in-Fact</signatureName>
        <signatureDate>2021-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
