<SEC-DOCUMENT>0000950170-24-070095.txt : 20240606
<SEC-HEADER>0000950170-24-070095.hdr.sgml : 20240606
<ACCEPTANCE-DATETIME>20240606191417
ACCESSION NUMBER:		0000950170-24-070095
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240606
FILED AS OF DATE:		20240606
DATE AS OF CHANGE:		20240606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CRANDELL KEITH
		CENTRAL INDEX KEY:			0001219039
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026843

	MAIL ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NELSEN ROBERT
		CENTRAL INDEX KEY:			0001219042
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026842

	MAIL ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GILLIS STEVEN
		CENTRAL INDEX KEY:			0001229592
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026840

	MAIL ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Burow Kristina
		CENTRAL INDEX KEY:			0001569248
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026841

	MAIL ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARCH Venture Fund XII, L.P.
		CENTRAL INDEX KEY:			0001906837
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026844

	BUSINESS ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD, SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		773-380-6600

	MAIL ADDRESS:	
		STREET 1:		8755 W. HIGGINS ROAD, SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARCH Venture Partners XII, LLC
		CENTRAL INDEX KEY:			0001979548
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026846

	BUSINESS ADDRESS:	
		STREET 1:		8755 W HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		7733806600

	MAIL ADDRESS:	
		STREET 1:		8755 W HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARCH Venture Partners XII, L.P.
		CENTRAL INDEX KEY:			0001979765
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42121
		FILM NUMBER:		241026845

	BUSINESS ADDRESS:	
		STREET 1:		8755 W HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		7733806600

	MAIL ADDRESS:	
		STREET 1:		8755 W HIGGINS ROAD
		STREET 2:		SUITE 1025
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Rapport Therapeutics, Inc.
		CENTRAL INDEX KEY:			0002012593
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				880724208
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1325 BOYLSTON STREET
		STREET 2:		SUITE 401
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02215
		BUSINESS PHONE:		857-321-8020

	MAIL ADDRESS:	
		STREET 1:		1325 BOYLSTON STREET
		STREET 2:		SUITE 401
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02215
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2024-06-06</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002012593</issuerCik>
        <issuerName>Rapport Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>RAPP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001979548</rptOwnerCik>
            <rptOwnerName>ARCH Venture Partners XII, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001979765</rptOwnerCik>
            <rptOwnerName>ARCH Venture Partners XII, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001906837</rptOwnerCik>
            <rptOwnerName>ARCH Venture Fund XII, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001219039</rptOwnerCik>
            <rptOwnerName>CRANDELL KEITH</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001219042</rptOwnerCik>
            <rptOwnerName>NELSEN ROBERT</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001569248</rptOwnerCik>
            <rptOwnerName>Burow Kristina</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229592</rptOwnerCik>
            <rptOwnerName>GILLIS STEVEN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8755 W. HIGGINS ROAD, SUITE 1025</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60631</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</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>2336000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By ARCH Venture Fund XII, L.P.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </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>1392738</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By ARCH Venture Fund XII, L.P.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share of Series A Preferred Stock and Series B Preferred Stock (collectively, the &quot;Preferred Stock&quot;) is convertible into Common Stock on a one-for-8.5648 basis at the option of the holder, and will convert automatically upon closing of the Issuer's initial public offering into the number of shares shown in column 3 without payment of consideration. The Preferred Stock has no expiration date.</footnote>
        <footnote id="F2">Shares held directly by ARCH Venture Fund XII, L.P. (&quot;ARCH XII&quot;). ARCH Venture Partners XII, L.P. (&quot;AVP XII LP&quot;) is the sole general partner of ARCH XII. ARCH Venture Partners XII, LLC (&quot;AVP XII LLC&quot;) is the sole general partner of AVP XII LP. Keith Crandell, Kristina Burow, Steven Gillis and Robert Nelsen are members of the investment committee of AVP XII LLC (the &quot;AVP XII LLC Committee Members&quot;). Each of AVP XII LP and AVP XII LLC may be deemed to beneficially own the shares held by ARCH XII, and each of the AVP XII LLC Committee Members may be deemed to share the power to direct the disposition and vote of the shares held by ARCH XII. Each of AVP XII LP, AVP XII LLC and the AVP XII LLC Committee Members disclaims beneficial ownership except to the extent of their pecuniary interest therein, if any.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>ARCH Venture Fund XII, L.P. By: ARCH Venture Partners XII, L.P., its General Partner By: ARCH Venture Partners XII, LLC, its General Partner By: /s/ Mark McDonnell, as Attorney-in-Fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>ARCH Venture Partners XII, L.P. By: ARCH Venture Partners XII, LLC, its General Partner By: /s/ Mark McDonnell, as Attorney-in-Fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>ARCH Venture Partners XII, LLC By: /s/ Mark McDonnell, as Attorney-in-Fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Keith Crandell, By: Mark McDonnell, attorney-in-fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kristina Burow, By: Mark McDonnell, attorney-in-fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Steven Gillis, By: Mark McDonnell, attorney-in-fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Robert Nelsen, By: Mark McDonnell, attorney-in-fact</signatureName>
        <signatureDate>2024-06-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
