    <SEC-DOCUMENT>0001660280-21-000045-index.html : 20210413
    <SEC-HEADER>0001660280-21-000045.hdr.sgml : 20210413
    <ACCEPTANCE-DATETIME>20210413161538
    ACCESSION NUMBER:		0001660280-21-000045
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20210525
    FILED AS OF DATE:		20210413
    DATE AS OF CHANGE:		20210413

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Tenable Holdings, Inc.
    		CENTRAL INDEX KEY:			0001660280
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
    		IRS NUMBER:				475580846
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38600
    		FILM NUMBER:		21823248

    	BUSINESS ADDRESS:
    		STREET 1:		6100 MERRIWEATHER DRIVE
    		CITY:			COLUMBIA
    		STATE:			MD
    		ZIP:			21044
    		BUSINESS PHONE:		410-872-0555

    	MAIL ADDRESS:
    		STREET 1:		6100 MERRIWEATHER DRIVE
    		CITY:			COLUMBIA
    		STATE:			MD
    		ZIP:			21044
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>tenable-2021proxy.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: tenable-2021proxy.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>chart-59d49c73aa2c46b39641.jpg
    <TEXT>
    Document 2 - file: chart-59d49c73aa2c46b39641.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>chart-d7299a9e603046289b31.jpg
    <TEXT>
    Document 3 - file: chart-d7299a9e603046289b31.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image1.jpg
    <TEXT>
    Document 4 - file: image1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>signaturea022.jpg
    <TEXT>
    Document 5 - file: signaturea022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tenablepc_pagex11.jpg
    <TEXT>
    Document 6 - file: tenablepc_pagex11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>tenablepc_pagex21.jpg
    <TEXT>
    Document 7 - file: tenablepc_pagex21.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>