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                <ns2:city>San Francisco</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94107</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8444327859</issuerContactPhone>
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            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
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        <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>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>5690</noOfUnitsSold>
            <aggregateMarketValue>111979.20</aggregateMarketValue>
            <noOfUnitsOutstanding>129200000</noOfUnitsOutstanding>
            <approxSaleDate>09/20/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <acquiredDate>09/01/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5690</amountOfSecuritiesAcquired>
            <paymentDate>09/01/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
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                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
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            <amountOfSecuritiesSold>4673</amountOfSecuritiesSold>
            <grossProceeds>112152.00</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/29/2023</saleDate>
            <amountOfSecuritiesSold>575</amountOfSecuritiesSold>
            <grossProceeds>10879.00</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
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                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
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            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/21/2023</saleDate>
            <amountOfSecuritiesSold>7000</amountOfSecuritiesSold>
            <grossProceeds>131887.70</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>BRETT SHIRK</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/16/2023</saleDate>
            <amountOfSecuritiesSold>9911</amountOfSecuritiesSold>
            <grossProceeds>207239.01</grossProceeds>
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        <securitiesSoldInPast3Months>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
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            <grossProceeds>126308.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>09/20/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/28/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Brett Shirk</signature>
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144
0001642259
XXXXXXXX
LIVE
0001517413
FASTLY INC CL A
001-38897
475 Brannan Street, Suite 300
San Francisco
CA
94107
8444327859
BRETT SHIRK
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
5690
111979.20
129200000
09/20/2023
NASDAQ
Common
09/01/2023
Restricted Stock Units
Issuer
N
5690
09/01/2023
N/A
N
BRETT SHIRK
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
09/18/2023
4673
112152.00
BRETT SHIRK
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
08/29/2023
575
10879.00
10b5-1 Sales Plan for BRETT SHIRK
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
08/21/2023
7000
131887.70
BRETT SHIRK
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
08/16/2023
9911
207239.01
10b5-1 Sales Plan for BRETT SHIRK
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
07/20/2023
7000
126308.00
09/20/2023
11/28/2022
/s/ Brett Shirk