<SEC-DOCUMENT>0000899243-22-015531.txt : 20220422
<SEC-HEADER>0000899243-22-015531.hdr.sgml : 20220422
<ACCEPTANCE-DATETIME>20220422213659
ACCESSION NUMBER:		0000899243-22-015531
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220420
FILED AS OF DATE:		20220422
DATE AS OF CHANGE:		20220422

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Phillips Christopher Stephen
		CENTRAL INDEX KEY:			0001908124

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39331
		FILM NUMBER:		22847166

	MAIL ADDRESS:	
		STREET 1:		C/O TREBIA ACQUISITION CORP.
		STREET 2:		41 MADISON AVENUE, SUITE 2020
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Just Develop It Ltd
		CENTRAL INDEX KEY:			0001909642
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39331
		FILM NUMBER:		22847165

	BUSINESS ADDRESS:	
		STREET 1:		LARCH HOUSE PARKLANDS BUSINESS PARK
		CITY:			DENMEAD, HAMPSHIRE
		STATE:			X0
		ZIP:			PO7 6XP
		BUSINESS PHONE:		44(0) 1489 88 50 50

	MAIL ADDRESS:	
		STREET 1:		LARCH HOUSE PARKLANDS BUSINESS PARK
		CITY:			DENMEAD, HAMPSHIRE
		STATE:			X0
		ZIP:			PO7 6XP

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JDI & AFH Ltd
		CENTRAL INDEX KEY:			0001909640
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39331
		FILM NUMBER:		22847164

	BUSINESS ADDRESS:	
		STREET 1:		LARCH HOUSE PARKLANDS BUSINESS PARK
		CITY:			DENMEAD, HAMPSHIRE
		STATE:			X0
		ZIP:			PO7 6XP
		BUSINESS PHONE:		44(0) 1489 88 50 50

	MAIL ADDRESS:	
		STREET 1:		LARCH HOUSE PARKLANDS BUSINESS PARK
		CITY:			DENMEAD, HAMPSHIRE
		STATE:			X0
		ZIP:			PO7 6XP

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			System1, Inc.
		CENTRAL INDEX KEY:			0001805833
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				981531250
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4235 REDWOOD AVENUE
		CITY:			MARINA DEL REY
		STATE:			CA
		ZIP:			90066
		BUSINESS PHONE:		310-924-6037

	MAIL ADDRESS:	
		STREET 1:		4235 REDWOOD AVENUE
		CITY:			MARINA DEL RAY
		STATE:			CA
		ZIP:			90066

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Trebia Acquisition Corp.
		DATE OF NAME CHANGE:	20200306
</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>2022-04-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001805833</issuerCik>
        <issuerName>System1, Inc.</issuerName>
        <issuerTradingSymbol>SST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001908124</rptOwnerCik>
            <rptOwnerName>Phillips Christopher Stephen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SYSTEM1, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4235 REDWOOD AVENUE</rptOwnerStreet2>
            <rptOwnerCity>MARINA DEL REY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90066</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001909642</rptOwnerCik>
            <rptOwnerName>Just Develop It Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>LARCH HOUSE</rptOwnerStreet1>
            <rptOwnerStreet2>PARKLANDS BUSINESS PARK</rptOwnerStreet2>
            <rptOwnerCity>DENMEAD, HAMPSHIRE</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>PO7 6XP</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001909640</rptOwnerCik>
            <rptOwnerName>JDI &amp; AFH Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O JUST DEVELOP IT LIMITED</rptOwnerStreet1>
            <rptOwnerStreet2>LARCH HOUSE PARKLANDS BUSINESS PARK</rptOwnerStreet2>
            <rptOwnerCity>DENMEAD</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>PO7 6XP</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-04-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>28650499</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By JDI &amp; AFH Limited</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20447728</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Just Develop It Limited</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On April 20, 2022, JDI &amp; AFH Limited (&quot;J&amp;A&quot;) distributed all of its 28,650,499 shares to its members on a pro rata basis for no consideration (the &quot;J&amp;A Distribution&quot;). J&amp;A's controlling stockholder is Just Develop It Limited (&quot;JDI&quot;). JDI may be deemed to indirectly beneficially own the securities held by J&amp;A. As a result of the J&amp;A Distribution, JDI's beneficial ownership of 19,508,187 shares held by J&amp;A, representing its pro rata interest in J&amp;A, was changed from indirect to direct beneficial ownership. Christopher Phillips, a director of the Company, is a director of J&amp;A and JDI. JDI's controlling stockholder is Christopher Phillips. Mr. Phillips has voting and dispositive power over the securities held by J&amp;A and JDI and thus may be deemed to beneficially own the shares held by J&amp;A and JDI, but disclaims such beneficial ownership except to any pecuniary interest therein. As a reslt of the J&amp;A Distribution, J&amp;A is no longer a 10% beneficial owner of Issuer securities.</footnote>
        <footnote id="F2">Includes 19,508,187 distributed to JDI from J&amp;A in connection with the J&amp;A Distribution. See Footnote 1.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Daniel Weinrot, as Attorney-in-Fact for Christopher Stephen Phillips</signatureName>
        <signatureDate>2022-04-22</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Daniel Weinrot, as Attorney-in-Fact for Just Develop It Limited</signatureName>
        <signatureDate>2022-04-22</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Daniel Weinrot, as Attorney-in-Fact for JDI &amp; AFH Limited</signatureName>
        <signatureDate>2022-04-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
