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: Le-Quoc Alexis (Director, President & CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-03	Class A Common Stock	C	190458	—	Acquired	190458	Indirect
2020-11-03	Class A Common Stock	S	1300	$86.8085	Disposed	189158	Indirect
2020-11-03	Class A Common Stock	S	2183	$88.0601	Disposed	186975	Indirect
2020-11-03	Class A Common Stock	S	7428	$89.1704	Disposed	179547	Indirect
2020-11-03	Class A Common Stock	S	172747	$90.0833	Disposed	6800	Indirect
2020-11-03	Class A Common Stock	S	6800	$90.5789	Disposed	0	Indirect
2020-11-03	Class A Common Stock	C	773	—	Acquired	773	Indirect
2020-11-03	Class A Common Stock	S	773	$90.00	Disposed	0	Indirect
2020-11-03	Class A Common Stock	C	277	—	Acquired	277	Indirect
2020-11-03	Class A Common Stock	S	277	$90.00	Disposed	0	Indirect
2020-11-03	Class A Common Stock	C	391	—	Acquired	391	Indirect
2020-11-03	Class A Common Stock	S	391	$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	190458	Disposed		Class B Common Stock (190458)	Indirect
2020-11-03	Class B Common Stock	$	C	773	Disposed		Class B Common Stock (773)	Indirect
2020-11-03	Class B Common Stock	$	C	277	Disposed		Class B Common Stock (277)	Indirect
2020-11-03	Class B Common Stock	$	C	391	Disposed		Class B Common Stock (391)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	117262	Direct

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 are held by the Alexis Le-Quoc Revocable Trust.

F3: Shares sold pursuant to a 10b5-1 plan entered into on September 14, 2020.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.46 to $87.29. 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 $87.48 to $88.47. 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 $88.50 to $89.49. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $89.50 to $90.49. 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.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $90.50 to $90.75. 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.

F9: Shares are held by the Alexis Le-Quoc 2016 GRAT.

F10: Shares are held by Offbeat Polymath Trust. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.

F11: Shares are held by Endearing Viceroy Trust. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.