<SEC-DOCUMENT>0001907701-25-000006.txt : 20250917
<SEC-HEADER>0001907701-25-000006.hdr.sgml : 20250917
<ACCEPTANCE-DATETIME>20250917165912
ACCESSION NUMBER:		0001907701-25-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250915
FILED AS OF DATE:		20250917
DATE AS OF CHANGE:		20250917

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bar-Zeev Tomer
		CENTRAL INDEX KEY:			0001907701
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39497
		FILM NUMBER:		251320785

	MAIL ADDRESS:	
		STREET 1:		C/O UNITY SOFTWARE INC.
		STREET 2:		116 NEW MONTGOMERY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Unity Software Inc.
		CENTRAL INDEX KEY:			0001810806
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		EIN:				270334803
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		116 NEW MONTGOMERY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105-3607
		BUSINESS PHONE:		(415) 638-9950

	MAIL ADDRESS:	
		STREET 1:		116 NEW MONTGOMERY STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105-3607
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1758142750.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-09-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001810806</issuerCik>
        <issuerName>Unity Software Inc.</issuerName>
        <issuerTradingSymbol>U</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001907701</rptOwnerCik>
            <rptOwnerName>Bar-Zeev Tomer</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O UNITY SOFTWARE INC.</rptOwnerStreet1>
            <rptOwnerStreet2>116 NEW MONTGOMERY STREET</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94105-3607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>1</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-09-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>115620</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>45.50</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1832526</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-09-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>34380</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>46.14</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1798146</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>759861</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 4, 2025.</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price, rounded to the nearest hundredth. These shares were sold in multiple transactions at prices ranging from $45.00 to $45.99, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 2 and 4 of this Form 4.</footnote>
        <footnote id="F3">The shares of Common Stock reported in this line are held directly by Agathy Holdings Ltd. (&quot;Agathy Holdings&quot;). Each of Tomer Bar-Zeev &amp; Yuli Bar-Zeev, Tomer Bar-Zeev's spouse, is a director of Agathy Holdings, and in such capacity possess voting power and dispositive power on behalf of Agathy Holdings with respect to securities held by Agathy Holdings. Tomer Bar-Zeev is a director of the Issuer. Agathy Holdings may be deemed to be a director by deputization of the Issuer. The Reporting Persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;). This filing shall not be deemed an admission that the Reporting Persons are subject to Section 16 of the Exchange Act.</footnote>
        <footnote id="F4">The price reported in Column 4 is a weighted average price, rounded to the nearest hundredth. These shares were sold in multiple transactions at prices ranging from $46.00 to $46.24, inclusive.</footnote>
        <footnote id="F5">There were no transactions effected in respect of the shares of Common Stock reported in this row, and the holdings in this row are being included for informational purposes only.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Anirma Gupta, Attorney-in-fact</signatureName>
        <signatureDate>2025-09-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
