<SEC-DOCUMENT>0001231919-25-000468.txt : 20251113
<SEC-HEADER>0001231919-25-000468.hdr.sgml : 20251113
<ACCEPTANCE-DATETIME>20251113172601
ACCESSION NUMBER:		0001231919-25-000468
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251112
FILED AS OF DATE:		20251113
DATE AS OF CHANGE:		20251113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RTW INVESTMENTS, LP
		CENTRAL INDEX KEY:			0001493215
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41767
		FILM NUMBER:		251479889

	BUSINESS ADDRESS:	
		STREET 1:		40 10TH AVENUE
		STREET 2:		7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10014
		BUSINESS PHONE:		646-597-6980

	MAIL ADDRESS:	
		STREET 1:		40 10TH AVENUE
		STREET 2:		7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10014

	FORMER NAME:	
		FORMER CONFORMED NAME:	RTW INVESTMENTS, LLC
		DATE OF NAME CHANGE:	20100602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RTW MASTER FUND, LTD.
		CENTRAL INDEX KEY:			0001493219
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41767
		FILM NUMBER:		251479887

	BUSINESS ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		190 ELGIN AVENUE
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008
		BUSINESS PHONE:		345-949-6765

	MAIL ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		190 ELGIN AVENUE
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008

	FORMER NAME:	
		FORMER CONFORMED NAME:	RTW OFFSHORE FUND ONE, LTD
		DATE OF NAME CHANGE:	20150521

	FORMER NAME:	
		FORMER CONFORMED NAME:	RTW MASTER FUND, LTD.
		DATE OF NAME CHANGE:	20100602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WONG RODERICK
		CENTRAL INDEX KEY:			0001493280
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41767
		FILM NUMBER:		251479888

	MAIL ADDRESS:	
		STREET 1:		C/O RTW INVESTMENTS, LP
		STREET 2:		40 10TH AVENUE, 7TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10014

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RTW Innovation Master Fund Ltd.
		CENTRAL INDEX KEY:			0001776733
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41767
		FILM NUMBER:		251479886

	BUSINESS ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		190 ELGIN AVENUE
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008
		BUSINESS PHONE:		6465976982

	MAIL ADDRESS:	
		STREET 1:		C/O WALKERS CORPORATE LIMITED
		STREET 2:		190 ELGIN AVENUE
		CITY:			GEORGE TOWN, GRAND CAYMAN
		STATE:			E9
		ZIP:			KY1-9008

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLURION TECHNOLOGIES, INC.
		CENTRAL INDEX KEY:			0001964979
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11 HURON DR STE 200
		CITY:			NATICK
		STATE:			MA
		ZIP:			01760
		BUSINESS PHONE:		508-647-4000

	MAIL ADDRESS:	
		STREET 1:		11 HURON DR STE 200
		CITY:			NATICK
		STATE:			MA
		ZIP:			01760

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLURION TECHNOLOGIES HOLDINGS, INC.
		DATE OF NAME CHANGE:	20230207
</SEC-HEADER>
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        <issuerName>ALLURION TECHNOLOGIES, INC.</issuerName>
        <issuerTradingSymbol>ALUR</issuerTradingSymbol>
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            <rptOwnerStreet1>40 10TH AVENUE, 7TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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    <reportingOwner>
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            <rptOwnerName>WONG RODERICK</rptOwnerName>
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        <reportingOwnerAddress>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001493219</rptOwnerCik>
            <rptOwnerName>RTW MASTER FUND, LTD.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>40 10TH AVENUE, 7TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10014</rptOwnerZipCode>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001776733</rptOwnerCik>
            <rptOwnerName>RTW Innovation Master Fund Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>40 10TH AVENUE, 7TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10014</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <otherText></otherText>
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    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-11-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>991544</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.67</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
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                    <value>3138798</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-11-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>1.67</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2427089</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-11-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>96896</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.67</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>298992</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $0.0001 par value per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
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    <derivativeTable>
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            </securityTitle>
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            <transactionDate>
                <value>2025-11-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F6"/>
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            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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            </postTransactionAmounts>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
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            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
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            <expirationDate>
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                <underlyingSecurityTitle>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
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                <value>2025-11-12</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>96896</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>96896</value>
                </underlyingSecurityShares>
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                    <value>96896</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
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                    <footnoteId id="F5"/>
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    <footnotes>
        <footnote id="F1">The Reporting Persons acquired the shares of Common Stock and Warrants in a private placement by the Issuer.  The purchase price per share of Common Stock and accompanying Warrant was $1.67 per share and accompanying Warrant.</footnote>
        <footnote id="F2">RTW Investments, LP (the &quot;Adviser&quot;) manages certain funds that directly hold the securities reported herein, including RTW Master Fund, Ltd. (&quot;Master Fund&quot;), RTW Innovation Master Fund, Ltd. (&quot;RTW Innovation&quot;) and other funds or accounts managed by the Adviser (each, an &quot;Other RTW Fund&quot;). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">Held directly by Master Fund.</footnote>
        <footnote id="F4">Held directly by RTW Innovation.</footnote>
        <footnote id="F5">Held by an Other RTW Fund.</footnote>
        <footnote id="F6">The Warrant is exercisable following receipt of the Stockholder Approval (as defined herein) at an exercise price of $1.67 per share and terminates on the five year anniversary of the date of the Stockholder Approval. The holder of the Warrant may not exercise such Warrant if the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the number of shares of Common Stock outstanding immediately after giving effect to such exercise. The Issuer is required to use its reasonable best efforts to hold a meeting of stockholders no later than January 31, 2026 for the purpose of, among other things, obtaining stockholder approval of the issuance of the shares of Common Stock issuable upon exercise of the Warrants (the &quot;Stockholder Approval&quot;).</footnote>
    </footnotes>

    <remarks>Pursuant to the terms of the Amended Note Purchase Agreement, RTW Investments, LP has the right to designate two members of the Issuer's board of directors (the &quot;Board&quot;), and has designated Keith Johns and R. Jason Richey to the Board. Mr. Richey is a consultant of RTW Investments.</remarks>

    <ownerSignature>
        <signatureName>/s/ Roderick Wong, M.D. - For RTW Investments, L.P., By: Roderick Wong, M.D., Managing Partner</signatureName>
        <signatureDate>2025-11-13</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Roderick Wong, M.D.</signatureName>
        <signatureDate>2025-11-13</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Darshan Patel - For RTW Master Fund, Ltd., By Darshan Patel, Director</signatureName>
        <signatureDate>2025-11-13</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Darshan Patel - For RTW Innovation Master Fund, Ltd., By Darshan Patel, Director</signatureName>
        <signatureDate>2025-11-13</signatureDate>
    </ownerSignature>
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