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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001558242</cik>
                    <ccc>XXXXXXXX</ccc>
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            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



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    <formData>
        <issuerInfo>
            <issuerCik>0001107843</issuerCik>
            <issuerName>QUALYS INC COM</issuerName>
            <secFileNumber>001-35662</secFileNumber>
            <issuerAddress>
                <ns2:street1>919 E. Hillsdale Boulevard, 4th Floor</ns2:street1>
                <ns2:city> Foster City</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94404</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>6508016100</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SUMEDH THAKAR</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>28000</noOfUnitsSold>
            <aggregateMarketValue>4238360.00</aggregateMarketValue>
            <noOfUnitsOutstanding>36590452</noOfUnitsOutstanding>
            <approxSaleDate>11/14/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/14/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>28000</amountOfSecuritiesAcquired>
            <paymentDate>11/14/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for SUMEDH THAKAR</name>
                <address>
                    <ns2:street1>919 E. Hillsdale Boulevard, 4th Floor</ns2:street1>
                    <ns2:city> Foster City</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94404</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>11/06/2024</saleDate>
            <amountOfSecuritiesSold>7142</amountOfSecuritiesSold>
            <grossProceeds>1195390.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for SUMEDH THAKAR</name>
                <address>
                    <ns2:street1>919 E. Hillsdale Boulevard, 4th Floor</ns2:street1>
                    <ns2:city> Foster City</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94404</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/14/2024</saleDate>
            <amountOfSecuritiesSold>7000</amountOfSecuritiesSold>
            <grossProceeds>876493.10</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for SUMEDH THAKAR</name>
                <address>
                    <ns2:street1>919 E. Hillsdale Boulevard, 4th Floor</ns2:street1>
                    <ns2:city> Foster City</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94404</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>09/16/2024</saleDate>
            <amountOfSecuritiesSold>7000</amountOfSecuritiesSold>
            <grossProceeds>882553.00</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>11/14/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>02/28/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Sumedh Thakar</signature>
        </noticeSignature>
    </formData>
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144
0001558242
XXXXXXXX
LIVE
0001107843
QUALYS INC COM
001-35662
919 E. Hillsdale Boulevard, 4th Floor
Foster City
CA
94404
6508016100
SUMEDH THAKAR
Director
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
28000
4238360.00
36590452
11/14/2024
NASDAQ
Common
11/14/2024
Exercise of Stock Options
Issuer
N
28000
11/14/2024
Cash
N
10b5-1 Sales Plan for SUMEDH THAKAR
919 E. Hillsdale Boulevard, 4th Floor
Foster City
CA
94404
Common
11/06/2024
7142
1195390.00
10b5-1 Sales Plan for SUMEDH THAKAR
919 E. Hillsdale Boulevard, 4th Floor
Foster City
CA
94404
Common
10/14/2024
7000
876493.10
10b5-1 Sales Plan for SUMEDH THAKAR
919 E. Hillsdale Boulevard, 4th Floor
Foster City
CA
94404
Common
09/16/2024
7000
882553.00
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.
11/14/2024
02/28/2024
/s/ Sumedh Thakar