<SEC-DOCUMENT>0001209191-23-051985.txt : 20231004
<SEC-HEADER>0001209191-23-051985.hdr.sgml : 20231004
<ACCEPTANCE-DATETIME>20231004163527
ACCESSION NUMBER:		0001209191-23-051985
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231002
FILED AS OF DATE:		20231004
DATE AS OF CHANGE:		20231004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Burton Karen L
		CENTRAL INDEX KEY:			0001697095

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38848
		FILM NUMBER:		231308486

	MAIL ADDRESS:	
		STREET 1:		5960 HEISLEY ROAD
		CITY:			MENTOR
		STATE:			OH
		ZIP:			44060

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STERIS plc
		CENTRAL INDEX KEY:			0001757898
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		70 SIR JOHN ROGERSON'S QUAY
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			2
		BUSINESS PHONE:		35312322000

	MAIL ADDRESS:	
		STREET 1:		70 SIR JOHN ROGERSON'S QUAY
		CITY:			DUBLIN
		STATE:			L2
		ZIP:			2

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STERIS Ltd
		DATE OF NAME CHANGE:	20181101
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-10-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001757898</issuerCik>
        <issuerName>STERIS plc</issuerName>
        <issuerTradingSymbol>STE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001697095</rptOwnerCik>
            <rptOwnerName>Burton Karen L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O 70 SIR JOHN ROGERSON'S QUAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DUBLIN</rptOwnerCity>
            <rptOwnerState>L2</rptOwnerState>
            <rptOwnerZipCode>2</rptOwnerZipCode>
            <rptOwnerStateDescription>IRELAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP, Controller &amp; CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2023-10-02</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>26</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>215.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6759</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">26 shares were withheld from the 86 restricted shares that vested on October 2, 2023. These 26 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These 86 ordinary shares were awarded to Ms. Burton on October 1, 2021. These vested shares were valued at the NYSE closing market price on October 2, 2023.</footnote>
        <footnote id="F2">As of October 2, 2023, 2,457 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 340 on May 31, 2024; 198 on June 3, 2024; 225 on June 3, 2024; 196 on June 3, 2024; 86 on October 1, 2024; 340 on June 2, 2025; 225 on June 2, 2025; 196 on June 2, 2025; 86 on October 1, 2025; 340 on June 1, 2026 and 225 on June 2, 2026.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ronald E. Snyder, Authorized Representative under Power of Attorney</signatureName>
        <signatureDate>2023-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
