    <SEC-DOCUMENT>0001323885-22-000043-index.html : 20220411
    <SEC-HEADER>0001323885-22-000043.hdr.sgml : 20220411
    <ACCEPTANCE-DATETIME>20220411101221
    ACCESSION NUMBER:		0001323885-22-000043
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		5
    FILED AS OF DATE:		20220411
    DATE AS OF CHANGE:		20220411

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AtriCure, Inc.
    		CENTRAL INDEX KEY:			0001323885
    		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
    		IRS NUMBER:				341940305
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-51470
    		FILM NUMBER:		22818731

    	BUSINESS ADDRESS:
    		STREET 1:		7555 INNOVATION WAY
    		CITY:			MASON
    		STATE:			OH
    		ZIP:			45040
    		BUSINESS PHONE:		513-755-4100

    	MAIL ADDRESS:
    		STREET 1:		7555 INNOVATION WAY
    		CITY:			MASON
    		STATE:			OH
    		ZIP:			45040
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>atrc-defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: atrc-defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>proxycardbackfinal.jpg
    <TEXT>
    Document 2 - file: proxycardbackfinal.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>proxycardfrontfinal.jpg
    <TEXT>
    Document 3 - file: proxycardfrontfinal.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>proxynoticeback.jpg
    <TEXT>
    Document 4 - file: proxynoticeback.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>proxynoticefront.jpg
    <TEXT>
    Document 5 - file: proxynoticefront.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>