<SUBMISSION>
<ACCESSION-NUMBER>0001181431-08-035322
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080528
<FILING-DATE>20080529
<DATE-OF-FILING-DATE-CHANGE>20080529
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>AtriCure, Inc.
<CIK>0001323885
<ASSIGNED-SIC>3841
<IRS-NUMBER>341940305
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>6033 SCHUMACHER PARK DRIVE
<CITY>WEST CHESTER
<STATE>OH
<ZIP>45069
<PHONE>513-755-4107
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>6033 SCHUMACHER PARK DRIVE
<CITY>WEST CHESTER
<STATE>OH
<ZIP>45069
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Lanning Mark R
<CIK>0001353679
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-51470
<FILM-NUMBER>08868002
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>812.934.7256
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>P.O. BOX #1
<CITY>OLDENBURG
<STATE>IN
<ZIP>47036
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd208999.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-05-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001323885</issuerCik>
        <issuerName>AtriCure, Inc.</issuerName>
        <issuerTradingSymbol>ATRC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001353679</rptOwnerCik>
            <rptOwnerName>Lanning Mark R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX #1</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OLDENBURG</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>47036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>10.10</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-05-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-05-28</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-05-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Exercisable cumulatively at a rate of 33.33% per annum commencing on the earlier of (i) the anniversary of the date of grant (May 28) and (ii) the date on which the Company's annual meeting of   stockholders is held that year, provided Mr. Lanning is a director immediately prior to such annual meeting.</footnote>
        <footnote id="F2">Not applicable</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Julie A. Piton as Attorney-in-Fact for Mark R. Lanning</signatureName>
        <signatureDate>2008-05-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
