<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0000901484</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000751978</issuerCik>
            <issuerName>VICOR CORPORATION</issuerName>
            <secFileNumber>000-18277</secFileNumber>
            <issuerAddress>
                <ns2:street1>25 Frontage Road</ns2:street1>
                <ns2:city>Andover</ns2:city>
                <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                <ns2:zipCode>01810</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>9784702900</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>PATRIZIO VINCIARELLI</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>10% Stockholder</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>19778</noOfUnitsSold>
            <aggregateMarketValue>3683059.16</aggregateMarketValue>
            <noOfUnitsOutstanding>33646426</noOfUnitsOutstanding>
            <approxSaleDate>04/14/2026</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/10/1981</acquiredDate>
            <natureOfAcquisitionTransaction>Founders Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>19778</amountOfSecuritiesAcquired>
            <paymentDate>11/10/1981</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/09/2026</saleDate>
            <amountOfSecuritiesSold>24943</amountOfSecuritiesSold>
            <grossProceeds>4670064.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/25/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>9184896.98</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/24/2026</saleDate>
            <amountOfSecuritiesSold>23179</amountOfSecuritiesSold>
            <grossProceeds>4170596.09</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/23/2026</saleDate>
            <amountOfSecuritiesSold>5924</amountOfSecuritiesSold>
            <grossProceeds>1039490.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/20/2026</saleDate>
            <amountOfSecuritiesSold>44076</amountOfSecuritiesSold>
            <grossProceeds>7928258.16</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/19/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8969588.75</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/18/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>9809142.46</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/17/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>9532498.30</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/16/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>9233644.50</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/13/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8542808.13</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/12/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8372990.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/11/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8870435.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/10/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8862570.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/09/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8212935.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/06/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>8314785.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/05/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>9341275.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for PATRIZIO VINCIARELLI</name>
                <address>
                    <ns2:street1>25 Frontage Road</ns2:street1>
                    <ns2:city>Andover</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/04/2026</saleDate>
            <amountOfSecuritiesSold>50000</amountOfSecuritiesSold>
            <grossProceeds>10077245.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>04/14/2026</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/03/2025</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Patrizio Vinciarelli</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
