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            <secFileNumber>001-40632</secFileNumber>
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                <ns2:city>Fremont</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94538</ns2:zipCode>
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            <issuerContactPhone>8779229835</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Patrick Jeanmonod</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
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                    <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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            <aggregateMarketValue>26250.00</aggregateMarketValue>
            <noOfUnitsOutstanding>135430624</noOfUnitsOutstanding>
            <approxSaleDate>03/24/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <acquiredDate>02/28/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Previously Exercised Stock Options</natureOfAcquisitionTransaction>
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            <isGiftTransaction>N</isGiftTransaction>
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            <paymentDate>02/28/2021</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
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        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94538</ns2:zipCode>
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            <amountOfSecuritiesSold>3000</amountOfSecuritiesSold>
            <grossProceeds>33164.10</grossProceeds>
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                    <ns2:zipCode>94538</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>01/24/2023</saleDate>
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            <grossProceeds>38686.90</grossProceeds>
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                    <ns2:zipCode>94538</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>12/27/2022</saleDate>
            <amountOfSecuritiesSold>3500</amountOfSecuritiesSold>
            <grossProceeds>34186.25</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/24/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/13/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ PATRIK JEANMONOD</signature>
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144
0001873085
XXXXXXXX
LIVE
0001831915
CYTEK BIOSCIENCES INC
001-40632
47215 Lakeview Blvd
Fremont
CA
94538
8779229835
Patrick Jeanmonod
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
3000
26250.00
135430624
03/24/2023
NASDAQ
Common
02/28/2021
Previously Exercised Stock Options
Issuer
N
3000
02/28/2021
Cash
N
10b5-1 Sales Plan for PATRIK JEANMONOD
47215 Lakeview Blvd
Fremont
CA
94538
Common
02/24/2023
3000
33164.10
10b5-1 Sales Plan for PATRIK JEANMONOD
47215 Lakeview Blvd
Fremont
CA
94538
Common
01/24/2023
3500
38686.90
10b5-1 Sales Plan for PATRIK JEANMONOD
47215 Lakeview Blvd
Fremont
CA
94538
Common
12/27/2022
3500
34186.25
03/24/2023
09/13/2022
/s/ PATRIK JEANMONOD