0001950047-23-005851.txt : 20231211 0001950047-23-005851.hdr.sgml : 20231211 20231211161843 ACCESSION NUMBER: 0001950047-23-005851 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231211 DATE AS OF CHANGE: 20231211 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Datadog, Inc. CENTRAL INDEX KEY: 0001561550 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 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: 231478379 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: Walters Sean Michael CENTRAL INDEX KEY: 0001903980 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O DATADOG, INC. STREET 2: 620 EIGHTH AVENUE, 45TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10018 144 1 primary_doc.xml 144 0001903980 XXXXXXXX LIVE 0001561550 DATADOG INC CL A 001-39051 620 EIGHTH AVENUE, 45TH FLOOR NEW YORK NY 10018 8663294466 SEAN MICHAEL WALTERS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 38th Fl. New York NY 10004

13254 1508702.82 302163623 12/11/2023 NASDAQ Common 11/15/2022 Employee Stock Purchase Plan Issuer N 147 11/15/2022 Cash Common 12/31/2022 Previously Exercised Stock Options Issuer N 10687 12/31/2022 Cash Common 12/01/2023 Restricted Stock Units Issuer N 2420 12/01/2023 N/A N SEAN MICHAEL WALTERS

620 EIGHTH AVENUE, 45TH FLOOR NEW YORK NY 10018

Common 12/04/2023 6523 761740.28 Securities to be sold were registered on Form S-8 12/11/2023 03/15/2023 /s/ Sean Michael Walters