<SEC-DOCUMENT>0001950047-25-010404.txt : 20251216
<SEC-HEADER>0001950047-25-010404.hdr.sgml : 20251216
<ACCEPTANCE-DATETIME>20251216162922
ACCESSION NUMBER:		0001950047-25-010404
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251216
DATE AS OF CHANGE:		20251216

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Datadog, Inc.
		CENTRAL INDEX KEY:			0001561550
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		EIN:				272825503
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-39051
		FILM NUMBER:		251575726

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE, 45TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		866-329-4466

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE, 45TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Agarwal Amit
		CENTRAL INDEX KEY:			0001540517
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		5435 NE DAWSON CREEK DR.
		CITY:			HILLSBORO
		STATE:			OR
		ZIP:			97124
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?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>0001540517</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001561550</issuerCik>
            <issuerName>Datadog, Inc.</issuerName>
            <secFileNumber>001-39051</secFileNumber>
            <issuerAddress>
                <ns2:street1>620 8th Avenue, 45th Floor</ns2:street1>
                <ns2:city>New York</ns2:city>
                <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                <ns2:zipCode>10018</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8663294466</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>A-J-M 2025 NON-EXEMPT TRUST U/A DTD 09/12/2025</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Affiliate</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Class A 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>11112</noOfUnitsSold>
            <aggregateMarketValue>1578459.60</aggregateMarketValue>
            <noOfUnitsOutstanding>325443373</noOfUnitsOutstanding>
            <approxSaleDate>12/16/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <acquiredDate>09/12/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Agarwal 2018 Family Trust</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>Y</isGiftTransaction>
            <donarAcquiredDate>04/07/2021</donarAcquiredDate>
            <amountOfSecuritiesAcquired>11112</amountOfSecuritiesAcquired>
            <natureOfPayment>NA</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for AGARWAL 2018 FAMILY TRUST</name>
                <address>
                    <ns2:street1>620 8th Avenue, 45th Floor</ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10018</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <saleDate>10/01/2025</saleDate>
            <amountOfSecuritiesSold>45444</amountOfSecuritiesSold>
            <grossProceeds>6820140.09</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for AGARWAL 2018 FAMILY TRUST</name>
                <address>
                    <ns2:street1>620 8th Avenue, 45th Floor</ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10018</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <saleDate>09/18/2025</saleDate>
            <amountOfSecuritiesSold>18</amountOfSecuritiesSold>
            <grossProceeds>2434.14</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for AGARWAL 2018 FAMILY TRUST</name>
                <address>
                    <ns2:street1>620 8th Avenue, 45th Floor</ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10018</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Class A Common</securitiesClassTitle>
            <saleDate>09/17/2025</saleDate>
            <amountOfSecuritiesSold>10094</amountOfSecuritiesSold>
            <grossProceeds>1356208.64</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The shares to be sold pursuant to this Form are held by trusts set up for the benefit of the family of Amit Agarwal, a member of the board of directors of Datadog, Inc. The disposition of these shares is controlled by an independent trustee. The shares were acquired by the donor during the period 04/07/2021 through 07/14/2021.</remarks>
        <noticeSignature>
            <noticeDate>12/16/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/15/2025</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Brian Cyr</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
