Datadog, Inc. — Director's Dealing 2020

May 8, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-05-06

Reporting Person: OBSTLER DAVID M (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-06	Class A Common Stock	S	16953	$46.7827	Disposed	84297	Direct
2020-05-06	Class A Common Stock	S	3047	$47.1428	Disposed	81250	Direct
2020-05-07	Class A Common Stock	S	25000	$48.2196	Disposed	56250	Direct
2020-05-08	Class A Common Stock	S	9434	$52.1702	Disposed	46816	Direct

Footnotes

F1: Shares sold pursuant to a 10b5-1 plan entered into on December 11, 2019.

F2: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $46.08 to $47.07. The reporting person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $47.08 to $47.25. The reporting person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $48.10 to $48.44. The reporting person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $52.15 to $52.23. The reporting person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.