<SEC-DOCUMENT>0001209191-21-023128.txt : 20210325
<SEC-HEADER>0001209191-21-023128.hdr.sgml : 20210325
<ACCEPTANCE-DATETIME>20210325211729
ACCESSION NUMBER:		0001209191-21-023128
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210325
FILED AS OF DATE:		20210325
DATE AS OF CHANGE:		20210325

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SR One Capital Fund I Aggregator LP
		CENTRAL INDEX KEY:			0001848319
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40288
		FILM NUMBER:		21774339

	BUSINESS ADDRESS:	
		STREET 1:		C/O DESIGN THERAPEUTICS, INC.
		STREET 2:		6005 HIDDEN VALLEY ROAD, SUITE 110
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92011
		BUSINESS PHONE:		858-293-4900

	MAIL ADDRESS:	
		STREET 1:		C/O DESIGN THERAPEUTICS, INC.
		STREET 2:		6005 HIDDEN VALLEY ROAD, SUITE 110
		CITY:			CARLSBAD
		STATE:			CA
		ZIP:			92011

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Design Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001807120
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				823929248
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		991C LOMAS SANTA FE #436
		CITY:			SOLANA BEACH
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-293-4900

	MAIL ADDRESS:	
		STREET 1:		991C LOMAS SANTA FE #436
		CITY:			SOLANA BEACH
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-03-25</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001807120</issuerCik>
        <issuerName>Design Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>DSGN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001848319</rptOwnerCik>
            <rptOwnerName>SR One Capital Fund I Aggregator LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>985 OLD EAGLE SCHOOL ROAD, SUITE 511</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WAYNE</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19087</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A 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>4439839</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series B 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>936637</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">All outstanding shares of Preferred Stock will automatically convert into shares of Common Stock at a rate of 1 share of Common Stock for each 1.63 shares of Preferred Stock, based on the conversion price currently in effect, at the Reporting Person's election and automatically upon the closing of the initial public offering of Design Therapeutics, Inc. (the &quot;Issuer&quot;). The Preferred Stock has no expiration date.</footnote>
        <footnote id="F2">The reported securities are held directly by SR One Capital Fund I Aggregator, LP. SR One Capital Partners I, LP is the general partner of SR One Capital Fund I Aggregator, LP, and SR One Capital Management, LLC is the general partner of SR One Capital Partners I, LP.  Simeon George, M.D. is the managing member of SR One Capital Management, LLC.  Each of SR One Capital Partners I, LP, SR One Capital Management, LLC and Mr. George may each be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>SR ONE CAPITAL FUND I AGGREGATOR, L.P.,
By: SR One Capital Partners I, LP, its General Partner,
By: SR One Capital Management, LLC, its General Partner,
By: /s/ Simeon George, Member</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
