<SEC-DOCUMENT>0000769993-19-000383.txt : 20190523
<SEC-HEADER>0000769993-19-000383.hdr.sgml : 20190523
<ACCEPTANCE-DATETIME>20190523213631
ACCESSION NUMBER:		0000769993-19-000383
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190521
FILED AS OF DATE:		20190523
DATE AS OF CHANGE:		20190523

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bridge Street Opportunity Advisors, L.L.C.
		CENTRAL INDEX KEY:			0001615636

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851924

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2018, L.P.
		CENTRAL INDEX KEY:			0001729502
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851925

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VWR Partners, L.P.
		CENTRAL INDEX KEY:			0001708241
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851926

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Broad Street Principal Investments, L.L.C.
		CENTRAL INDEX KEY:			0001575993

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851927

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2018 Offshore, L.P.
		CENTRAL INDEX KEY:			0001729503
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851928

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2017, L.P.
		CENTRAL INDEX KEY:			0001698772
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851929

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2017 Offshore, L.P.
		CENTRAL INDEX KEY:			0001698770
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851930

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOLDMAN SACHS GROUP INC
		CENTRAL INDEX KEY:			0000886982
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851931

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

	FORMER NAME:	
		FORMER CONFORMED NAME:	GOLDMAN SACHS GROUP INC/
		DATE OF NAME CHANGE:	20010104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOLDMAN SACHS & CO. LLC
		CENTRAL INDEX KEY:			0000769993
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38912
		FILM NUMBER:		19851932

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

	FORMER NAME:	
		FORMER CONFORMED NAME:	GOLDMAN SACHS & CO
		DATE OF NAME CHANGE:	19931102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Avantor, Inc.
		CENTRAL INDEX KEY:			0001722482
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY ANALYTICAL INSTRUMENTS [3826]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		BUILDING ONE, SUITE 200
		STREET 2:		100 MATSONFORD ROAD
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		(610) 386-1700

	MAIL ADDRESS:	
		STREET 1:		BUILDING ONE, SUITE 200
		STREET 2:		100 MATSONFORD ROAD
		CITY:			RADNOR
		STATE:			PA
		ZIP:			19087

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Avantor, Inc
		DATE OF NAME CHANGE:	20190206

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Vail Holdco Corp
		DATE OF NAME CHANGE:	20171113
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownershipdoc05192019012327.xml
<TEXT>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-05-21-04:00</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001722482</issuerCik>
        <issuerName>Avantor, Inc.</issuerName>
        <issuerTradingSymbol>AVTR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000769993</rptOwnerCik>
            <rptOwnerName>GOLDMAN SACHS &amp; CO. LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000886982</rptOwnerCik>
            <rptOwnerName>GOLDMAN SACHS GROUP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001698770</rptOwnerCik>
            <rptOwnerName>StoneBridge 2017 Offshore, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282-2198</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001698772</rptOwnerCik>
            <rptOwnerName>StoneBridge 2017, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282-2198</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001729503</rptOwnerCik>
            <rptOwnerName>StoneBridge 2018 Offshore, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001575993</rptOwnerCik>
            <rptOwnerName>Broad Street Principal Investments, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001708241</rptOwnerCik>
            <rptOwnerName>VWR Partners, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001729502</rptOwnerCik>
            <rptOwnerName>StoneBridge 2018, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001615636</rptOwnerCik>
            <rptOwnerName>Bridge Street Opportunity Advisors, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2019-05-21-04:00</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>66471429</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>66471429</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2019-05-21-04:00</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000000</value>
                    <footnoteId id="F5"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>71471429</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrants</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F6"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-05-21-04:00</value>
                <footnoteId id="F6"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1133920</value>
                    <footnoteId id="F6"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F6"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                    <footnoteId id="F6"/>
                </underlyingSecurityTitle>
                <underlyingSecurityValue>
                    <value>1133920</value>
                    <footnoteId id="F6"/>
                </underlyingSecurityValue>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1133920</value>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F6"/>
                    <footnoteId id="F7"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This statement is being filed by The Goldman Sachs Group, Inc. (&quot;GS Group&quot;), Goldman Sachs &amp; Co., LLC (&quot;Goldman Sachs&quot;), StoneBridge 2017, L.P., (&quot;StoneBridge 2017&quot;) StoneBridge 2017 Offshore, L.P. (&quot;StoneBridge 2017 Offshore&quot;), Broad Street Principal Investments, L.L.C. (&quot;BSPI&quot;), VWR Partners, L.P. (&quot;VWR&quot;), StoneBridge 2018, L.P. (&quot;StoneBridge 2018&quot;), StoneBridge 2018 Offshore, L.P. (&quot;StoneBridge 2018 Offshore&quot;)and Bridge Street Opportunity Advisors L.L.C. (&quot;Bridge Street&quot;) (together, the &quot;Reporting Persons&quot;).</footnote>
        <footnote id="F2">Goldman Sachs and GS Group may be deemed to beneficially own indirectly, in the aggregate, 71,471,429 shares of Common Stock, $0.01 par value per share (&quot;Common Stock&quot;), of Avantor, Inc. (the &quot;Issuer&quot;) by reason of the direct beneficial ownership of such shares by BSPI, StoneBridge 2017, StoneBridge 2017 Offshore, VWR, StoneBridge 2018, StoneBridge 2018 Offshore and Bridge Street (together, the &quot;GS Entities&quot;) because affiliates of Goldman Sachs and GS Group are the general partner, managing limited partner, managing general partner, managing partner, managing member or member of each of the GS Funds. Goldman Sachs is a wholly-owned subsidiary of GS Group. Goldman Sachs is the investment manager of certain of the GS Entities.</footnote>
        <footnote id="F3">Each of the Reporting Persons held shares of Junior Convertible Preferred Stock (the &quot;Junior Convertible Preferred&quot;) of the Issuer prior to the initial public offering of the Common Stock (the &quot;IPO&quot;). The Junior Convertible Preferred by its terms, automatically converted into Common Stock upon the closing of the Issuer's IPO. The number of shares of common stock received upon conversion of the Existing Junior Convertible Preferred Stock was based on the aggregate liquidation preference of such stock divided by the initial public offering price of $14.00 per share.</footnote>
        <footnote id="F4">Specifically on May 21, 2019, (i) 26,576,786 shares of Junior Convertible Preferred beneficially owned by BSPI were automatically converted into 26,576,786 shares of Common Stock; (ii)806,025 shares of Junior Convertible Preferred beneficially owned by StoneBridge 2017 were automatically converted into 806,025 shares of Common Stock; (iii)372,546 shares of Junior Convertible Preferred beneficially owned by StoneBridge 2017 Offshore were automatically converted into 372,546 shares of Common Stock; (iv) 35,769,643 shares of Junior Convertible Preferred beneficially owned by VWR were automatically converted into 35,769,643 shares of Common Stock; (v)2,074,050 shares of Junior Convertible Preferred beneficially owned by StoneBridge 2018 were automatically converted into 2,074,050 shares of Common Stock;and (vi) 872,379 shares of Junior Convertible Preferred beneficially owned by StoneBridge 2018 Offshore were automatically converted into 872,379 shares of Common Stock.</footnote>
        <footnote id="F5">BSPI acquired 5,000,000 shares of Common Stock at a price of $14 per share during the IPO out of which 502,788 shares and 211,498 shares were subsequently transferred to StoneBridge 2018 and StoneBridge 2018 Offshore respectively on May 21, 2019.</footnote>
        <footnote id="F6">As of May 23, 2019, the Reporting Persons collectively hold 1,133,920 shares of warrants that can be exercised on a one-for-one basis. Specifically, (i)1,080,595 shares of warrants are held by BSPI; (ii) 36,475 shares of warrants are held by StoneBridge 2017; and (iii) 16,850 shares of warrants are held by StoneBridge 2017 Offshore.</footnote>
        <footnote id="F7">Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that any such Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Exchange Act, or for any other purpose.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Jennifer Lee</signatureName>
        <signatureDate>2019-05-23-04:00</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>bridgestreet05232019.txt
<TEXT>
<p><br />
POWER OF ATTORNEY<br />
<br />
KNOW ALL PERSONS BY THESE PRESENTS that<br />
BRIDGE STREET OPPORTUNITY ADVISORS, L.L.C. (the "Company")<br />
does hereby make, constitute and appoint each of<br />
Yvette Kosic, Jamison Yardley, Jennifer Lee and<br />
Jess J. Morrison, acting individually, its true and<br />
lawful attorney, to execute and deliver in its name<br />
and on its behalf whether the Company is acting individually<br />
or as representative of others, any and all filings required<br />
to be made by the Company under the Securities Exchange Act<br />
of 1934, (as amended, the "Act"), with respect to securities<br />
which may be deemed to be beneficially owned by the Company<br />
under the Act, giving and granting unto each said<br />
attorney-in-fact power and authority to act in the premises<br />
as fully and to all intents and purposes as the Company<br />
might or could do if personally present by one of its<br />
authorized signatories, hereby ratifying and confirming<br />
all that said attorney-in-fact shall lawfully do or<br />
cause to be done by virtue hereof.<br />
<br />
THIS POWER OF ATTORNEY shall remain in full force and effect<br />
until the earlier of (i)<br />
March 15, 2022 and (ii) such time that it is revoked in<br />
writing by the undersigned; provided that in the event the<br />
attorney-in-fact ceases to be an employee of the Company or<br />
its affiliates or ceases to perform the function in connection<br />
with which he/she was appointed attorney-in-fact<br />
prior to such time, this Power of Attorney shall cease<br />
to have effect in relation to such attorney-in-fact<br />
upon such cessation but shall continue in full force<br />
and effect in relation to any remaining attorneys-in-fact.<br />
The Company has the unrestricted right unilaterally to<br />
revoke this Power of Attorney.</p>

<p> </p>

<p>This Power of Attorney shall be governed by, and construed in<br />
accordance with, the laws of the State of New York, without<br />
regard to rules of conflicts of law.<br />
<br />
IN WITNESS WHEREOF, the undersigned has duly subscribed<br />
these presents as of March 15, 2019.</p>

<p>BRIDGE STREET OPPORTUNITY ADVISORS, L.L.C.</p>

<p>By: /s/ William Y. Eng<br />
Name: William Y. Eng<br />
Title: Vice President</p>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
