<SEC-DOCUMENT>0001104659-22-066221.txt : 20220531
<SEC-HEADER>0001104659-22-066221.hdr.sgml : 20220531
<ACCEPTANCE-DATETIME>20220531071323
ACCESSION NUMBER:		0001104659-22-066221
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220527
FILED AS OF DATE:		20220531
DATE AS OF CHANGE:		20220531

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Divis Gregory J
		CENTRAL INDEX KEY:			0001410677

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37977
		FILM NUMBER:		22980428

	MAIL ADDRESS:	
		STREET 1:		10-1 BLANCHARDSTOWN CORPORATE PARK
		STREET 2:		BALLYCOOLIN
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			15

	FORMER NAME:	
		FORMER CONFORMED NAME:	DIVIS GREG J
		DATE OF NAME CHANGE:	20070824

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AVADEL PHARMACEUTICALS PLC
		CENTRAL INDEX KEY:			0001012477
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		BLOCK 10-1 BLANCHARDSTOWN CORPORATE PARK
		STREET 2:		BALLYCOOLIN
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			15
		BUSINESS PHONE:		636-449-1830

	MAIL ADDRESS:	
		STREET 1:		16640 CHESTERFIELD GROVE ROAD
		STREET 2:		SUITE 200
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FLAMEL TECHNOLOGIES SA
		DATE OF NAME CHANGE:	19960422
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2217241-1_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-05-27</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001012477</issuerCik>
        <issuerName>AVADEL PHARMACEUTICALS PLC</issuerName>
        <issuerTradingSymbol>AVDL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001410677</rptOwnerCik>
            <rptOwnerName>Divis Gregory J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AVADEL PHARMACEUTICALS PLC</rptOwnerStreet1>
            <rptOwnerStreet2>10 EARLSFORT TERRACE</rptOwnerStreet2>
            <rptOwnerCity>DUBLIN 2</rptOwnerCity>
            <rptOwnerState>L2</rptOwnerState>
            <rptOwnerZipCode>D02 T380</rptOwnerZipCode>
            <rptOwnerStateDescription>IRELAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>ADSs</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2022-05-27</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>149100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The issuer's &quot;ADSs&quot; are American Depositary Shares, with each ADS representing one ordinary share, nominal value $0.01 per share, of the issuer; ADSs may be represented by American Depositary Receipts.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Jerad G. Seurer, as Attorney-in-Fact</signatureName>
        <signatureDate>2022-05-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
