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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001383318</cik>
                    <ccc>XXXXXXXX</ccc>
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            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001660280</issuerCik>
            <issuerName>TENABLE HLDGS INC</issuerName>
            <secFileNumber>001-38600</secFileNumber>
            <issuerAddress>
                <ns2:street1>6100 Merriweather Drive</ns2:street1>
                <ns2:city>COLUMBIA</ns2:city>
                <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                <ns2:zipCode>21044</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>4108720555</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>AMIT YORAN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>70000</noOfUnitsSold>
            <aggregateMarketValue>3019800.00</aggregateMarketValue>
            <noOfUnitsOutstanding>118867830</noOfUnitsOutstanding>
            <approxSaleDate>07/30/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>07/30/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>70000</amountOfSecuritiesAcquired>
            <paymentDate>07/30/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>AMIT YORAN</name>
                <address>
                    <ns2:street1>6100 Merriweather Drive</ns2:street1>
                    <ns2:city>COLUMBIA</ns2:city>
                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21044</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/24/2024</saleDate>
            <amountOfSecuritiesSold>5684</amountOfSecuritiesSold>
            <grossProceeds>247140.32</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>AMIT YORAN</name>
                <address>
                    <ns2:street1>6100 Merriweather Drive</ns2:street1>
                    <ns2:city>COLUMBIA</ns2:city>
                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21044</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/23/2024</saleDate>
            <amountOfSecuritiesSold>5359</amountOfSecuritiesSold>
            <grossProceeds>231401.62</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>AMIT YORAN</name>
                <address>
                    <ns2:street1>6100 Merriweather Drive</ns2:street1>
                    <ns2:city>COLUMBIA</ns2:city>
                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21044</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/20/2024</saleDate>
            <amountOfSecuritiesSold>4851</amountOfSecuritiesSold>
            <grossProceeds>212279.76</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.&#13;
</remarks>
        <noticeSignature>
            <noticeDate>07/30/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>12/04/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Amit Yoran</signature>
        </noticeSignature>
    </formData>
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144
0001383318
XXXXXXXX
LIVE
0001660280
TENABLE HLDGS INC
001-38600
6100 Merriweather Drive
COLUMBIA
MD
21044
4108720555
AMIT YORAN
Director
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
70000
3019800.00
118867830
07/30/2024
NASDAQ
Common
07/30/2024
Exercise of Stock Options
Issuer
N
70000
07/30/2024
Cash
N
AMIT YORAN
6100 Merriweather Drive
COLUMBIA
MD
21044
Common
05/24/2024
5684
247140.32
AMIT YORAN
6100 Merriweather Drive
COLUMBIA
MD
21044
Common
05/23/2024
5359
231401.62
AMIT YORAN
6100 Merriweather Drive
COLUMBIA
MD
21044
Common
05/20/2024
4851
212279.76
The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
07/30/2024
12/04/2023
/s/ Amit Yoran