<SEC-DOCUMENT>0001140361-21-036647.txt : 20211104
<SEC-HEADER>0001140361-21-036647.hdr.sgml : 20211104
<ACCEPTANCE-DATETIME>20211104213318
ACCESSION NUMBER:		0001140361-21-036647
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211104
FILED AS OF DATE:		20211104
DATE AS OF CHANGE:		20211104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Vivo Capital Fund IX, L.P.
		CENTRAL INDEX KEY:			0001750117
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41008
		FILM NUMBER:		211382033

	BUSINESS ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301
		BUSINESS PHONE:		(650) 688-0818

	MAIL ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Vivo Capital IX, LLC
		CENTRAL INDEX KEY:			0001750698
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41008
		FILM NUMBER:		211382034

	BUSINESS ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301
		BUSINESS PHONE:		6506880818

	MAIL ADDRESS:	
		STREET 1:		192 LYTTON AVENUE
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IO Biotech, Inc.
		CENTRAL INDEX KEY:			0001865494
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				870909276
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		OLE MAALOES VEH 3
		CITY:			COPENHAGEN
		STATE:			G7
		ZIP:			2200
		BUSINESS PHONE:		4570702980

	MAIL ADDRESS:	
		STREET 1:		OLE MAALOES VEH 3
		CITY:			COPENHAGEN
		STATE:			G7
		ZIP:			2200
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-11-04</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001865494</issuerCik>
        <issuerName>IO Biotech, Inc.</issuerName>
        <issuerTradingSymbol>IOBT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001750698</rptOwnerCik>
            <rptOwnerName>Vivo Capital IX, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VIVO CAPITAL LLC</rptOwnerStreet1>
            <rptOwnerStreet2>192 LYTTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001750117</rptOwnerCik>
            <rptOwnerName>Vivo Capital Fund IX, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VIVO CAPITAL LLC</rptOwnerStreet1>
            <rptOwnerStreet2>192 LYTTON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series C Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2365545</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Upon the closing of the Issuer's initial public offering (&quot;IPO&quot;), each share of Series C Preferred Stock beneficially owned by the reporting person will automatically convert, for no additional consideration, into the number of shares of Common Stock reported in Column 3. These shares of Series C Preferred Stock have no expiration date.</footnote>
        <footnote id="F2">The shares are held directly by Vivo Capital Fund IX, L.P. Vivo Capital IX, LLC is the general partner of Vivo Capital Fund IX, L.P. As the managing members of Vivo Capital IX, LLC, Frank Kung, Edgar Engleman, Shan Fu, Hongbo Lu, Mahendra Shah, Jack Nielsen and Michael Chang share voting and dispositive power over the shares held by Vivo Capital Fund IX, L.P., but each disclaims beneficial ownership of such shares except to the extent of their individual pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jack Nielsen, as a Managing Member of Vivo Capital IX, LLC</signatureName>
        <signatureDate>2021-11-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jack Nielsen, as a Managing Member of Vivo Capital IX, LLC, the General Partner of Vivo Capital Fund IX, L.P.</signatureName>
        <signatureDate>2021-11-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
