<SEC-DOCUMENT>0001816590-22-000058.txt : 20220617
<SEC-HEADER>0001816590-22-000058.hdr.sgml : 20220617
<ACCEPTANCE-DATETIME>20220617161123
ACCESSION NUMBER:		0001816590-22-000058
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220616
FILED AS OF DATE:		20220617
DATE AS OF CHANGE:		20220617

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Riley Wayne Joseph
		CENTRAL INDEX KEY:			0001432895

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39522
		FILM NUMBER:		221023914

	MAIL ADDRESS:	
		STREET 1:		1005 DR D.B. TODD BLVD
		CITY:			NASHVILLE
		STATE:			TN
		ZIP:			37208

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMPASS Pathways plc
		CENTRAL INDEX KEY:			0001816590
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3RD FLOOR, 1 ASHLEY ROAD
		STREET 2:		ALTRINCHAM
		CITY:			CHESIRE
		STATE:			X0
		ZIP:			WA14 2DT
		BUSINESS PHONE:		1-646-905-3974

	MAIL ADDRESS:	
		STREET 1:		3RD FLOOR, 1 ASHLEY ROAD
		STREET 2:		ALTRINCHAM
		CITY:			CHESIRE
		STATE:			X0
		ZIP:			WA14 2DT

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Compass Rx Ltd.
		DATE OF NAME CHANGE:	20200701
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_165549665774680.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-06-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001816590</issuerCik>
        <issuerName>COMPASS Pathways plc</issuerName>
        <issuerTradingSymbol>CMPS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001432895</rptOwnerCik>
            <rptOwnerName>Riley Wayne Joseph</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>COMPASS PATHWAYS PLC</rptOwnerStreet1>
            <rptOwnerStreet2>33 BROADWICK STREET</rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>W1F 0DQ</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Share Option (Right to Buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>9.41</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2022-06-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>21250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2032-06-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>21250.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21250</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Ordinary Shares may be represented by American Depositary Shares, each of which currently represents one Ordinary Share.</footnote>
        <footnote id="F2">The shares underlying this option vest in full upon the earlier to occur of (i) the first anniversary of the date of grant or (ii) the date of COMPASS Pathways plc's Annual Meeting of Shareholders in 2023.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Daniel Maalo by Power of Attorney for Wayne Riley</signatureName>
        <signatureDate>2022-06-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
