Datadog, Inc. — Director's Dealing 2020

Nov 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-11-03

Reporting Person: Pomel Olivier (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-03	Class A Common Stock	C	195657	—	Acquired	359278	Direct
2020-11-03	Class A Common Stock	S	1700	$86.9553	Disposed	357578	Direct
2020-11-03	Class A Common Stock	S	2405	$88.2156	Disposed	355173	Direct
2020-11-03	Class A Common Stock	S	18905	$89.5154	Disposed	336268	Direct
2020-11-03	Class A Common Stock	S	172647	$90.1284	Disposed	163621	Direct
2020-11-03	Class A Common Stock	C	2809	—	Acquired	2809	Indirect
2020-11-03	Class A Common Stock	S	2809	$90.00	Disposed	0	Indirect
2020-11-03	Class A Common Stock	C	533	—	Acquired	533	Indirect
2020-11-03	Class A Common Stock	S	533	$90.00	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-11-03	Class B Common Stock	$	C	195657	Disposed		Class B Common Stock (195657)	Direct
2020-11-03	Class B Common Stock	$	C	2809	Disposed		Class B Common Stock (2809)	Indirect
2020-11-03	Class B Common Stock	$	C	533	Disposed		Class B Common Stock (533)	Indirect

Footnotes

F1: Each share of Class B Common Stock is convertible into an equal number of shares of Class A Common Stock at any time, at the holder's election, and has no expiration date. Each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon the earliest of: (i) any transfer, whether or not for value, except for certain "Permitted Transfers" as defined in the Issuer's amended and restated certificate of incorporation, (ii) the nine-month anniversary of the death of the Reporting Person in the case of shares held directly or in a trustee capacity, and (iii) the tenth anniversary of the Issuer's initial public offering of its Class A Common Stock.

F2: Shares sold pursuant to a 10b5-1 plan entered into on December 7, 2019.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.54 to $87.51. 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 $87.56 to $88.55. 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 $88.80 to $89.795. 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.

F6: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $89.80 to $90.70. 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.

F7: Shares are held by the Olivier Pomel 2018 GRAT.

F8: Shares are held by the Pomel Descendents' 2018 Trust. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.

F9: Shares sold pursuant to a 10b5-1 plan entered into on September 14, 2020.