<SEC-DOCUMENT>0000899243-21-025736.txt : 20210624
<SEC-HEADER>0000899243-21-025736.hdr.sgml : 20210624
<ACCEPTANCE-DATETIME>20210624161540
ACCESSION NUMBER:		0000899243-21-025736
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210622
FILED AS OF DATE:		20210624
DATE AS OF CHANGE:		20210624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Angermayer Christian
		CENTRAL INDEX KEY:			0001845872

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40493
		FILM NUMBER:		211043002

	MAIL ADDRESS:	
		STREET 1:		BLOCK A, APT.12
		STREET 2:		IL-PIAZZETTA, TOWER ROAD
		CITY:			SLIEMA
		STATE:			O1
		ZIP:			SLM1605

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ATAI Life Sciences N.V.
		CENTRAL INDEX KEY:			0001840904
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			P7
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		180 VARICK STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10014
		BUSINESS PHONE:		(617) 699-5876

	MAIL ADDRESS:	
		STREET 1:		180 VARICK STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10014

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ATAI Life Sciences B.V.
		DATE OF NAME CHANGE:	20210115
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-06-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001840904</issuerCik>
        <issuerName>ATAI Life Sciences N.V.</issuerName>
        <issuerTradingSymbol>ATAI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001845872</rptOwnerCik>
            <rptOwnerName>Angermayer Christian</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>66 &amp; 67, BEATRICE, AMERY STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SLIEMA</rptOwnerCity>
            <rptOwnerState>O1</rptOwnerState>
            <rptOwnerZipCode>SLM1707</rptOwnerZipCode>
            <rptOwnerStateDescription>MALTA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2021-06-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>700000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20185200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Apeiron Investment Group Ltd.</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1187104</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Presight II, L.P.</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Apeiron Investment Group Ltd. is the co-managing member of Presight Capital Management I, LLC, which is the general partner of Presight II, L.P. Therefore, Apeiron Investment Group Ltd. may be deemed to share beneficial ownership of the Common Shares held by Presight II, L.P. Apeiron Investment Group Ltd. is owned and controlled by Christian Angermayer. Mr. Angermayer may be deemed to have beneficial ownership over the shares held by Apeiron Investment Group Ltd. and Presight II, L.P.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ryan Barrett, Attorney-in-fact</signatureName>
        <signatureDate>2021-06-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
