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            <secFileNumber>001-38600</secFileNumber>
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                <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                <ns2:zipCode>21046</ns2:zipCode>
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            <issuerContactPhone>4108720555</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>AMIT YORAN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
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            <securitiesClassTitle>COMMON</securitiesClassTitle>
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                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
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            <approxSaleDate>07/26/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <acquiredDate>07/26/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>41966</amountOfSecuritiesAcquired>
            <paymentDate>07/26/2023</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
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                <address>
                    <ns2:street1>7021 COLUMBIA GATEWAY DRIVE, SUITE 500</ns2:street1>
                    <ns2:city>COLUMBIA</ns2:city>
                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21046</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/24/2023</saleDate>
            <amountOfSecuritiesSold>5708</amountOfSecuritiesSold>
            <grossProceeds>214278.32</grossProceeds>
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            <sellerDetails>
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                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21046</ns2:zipCode>
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            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/22/2023</saleDate>
            <amountOfSecuritiesSold>6489</amountOfSecuritiesSold>
            <grossProceeds>261571.59</grossProceeds>
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                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>21046</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/18/2023</saleDate>
            <amountOfSecuritiesSold>4817</amountOfSecuritiesSold>
            <grossProceeds>184394.76</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>07/26/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>12/12/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Amit Yoran </signature>
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144
0001383318
XXXXXXXX
LIVE
0001660280
TENABLE HLDGS INC
001-38600
7021 COLUMBIA GATEWAY DRIVE, SUITE 500
COLUMBIA
MD
21046
4108720555
AMIT YORAN
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
41966
1837271.48
114833241
07/26/2023
NASDAQ
Common
07/26/2023
Exercise of Stock Options
Issuer
N
41966
07/26/2023
Cash
N
AMIT YORAN
7021 COLUMBIA GATEWAY DRIVE, SUITE 500
COLUMBIA
MD
21046
Common
05/24/2023
5708
214278.32
AMIT YORAN
7021 COLUMBIA GATEWAY DRIVE, SUITE 500
COLUMBIA
MD
21046
Common
05/22/2023
6489
261571.59
AMIT YORAN
7021 COLUMBIA GATEWAY DRIVE, SUITE 500
COLUMBIA
MD
21046
Common
05/18/2023
4817
184394.76
07/26/2023
12/12/2022
/s/ Amit Yoran