Datadog, Inc. — Director's Dealing 2021

Aug 6, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2021-08-04

Reporting Person: Kopits Laszlo (General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-08-04	Class A Common Stock	C	8000	$0.00	Acquired	105476	Direct
2021-08-04	Class A Common Stock	S	3894	$113.7382	Disposed	101582	Direct
2021-08-04	Class A Common Stock	S	3472	$114.9563	Disposed	98110	Direct
2021-08-04	Class A Common Stock	S	634	$115.5752	Disposed	97476	Direct
2021-08-05	Class A Common Stock	C	44700	$0.00	Acquired	142176	Direct
2021-08-05	Class A Common Stock	S	500	$127.468	Disposed	141676	Direct
2021-08-05	Class A Common Stock	S	1300	$128.9508	Disposed	140376	Direct
2021-08-05	Class A Common Stock	S	1907	$129.8912	Disposed	138469	Direct
2021-08-05	Class A Common Stock	S	5730	$130.9503	Disposed	132739	Direct
2021-08-05	Class A Common Stock	S	13017	$131.7517	Disposed	119722	Direct
2021-08-05	Class A Common Stock	S	6700	$132.9432	Disposed	113022	Direct
2021-08-05	Class A Common Stock	S	11440	$133.9095	Disposed	101582	Direct
2021-08-05	Class A Common Stock	S	4106	$134.6958	Disposed	97476	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-08-04	Class B Common Stock	$	C	8000	Disposed		Class A Common Stock (8000)	Direct
2021-08-05	Class B Common Stock	$	C	44700	Disposed		Class A Common Stock (44700)	Direct

Footnotes

F1: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock 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 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 February 27, 2021.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $113.41 to $114.33. 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 $114.42 to $115.35. 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 $115.42 to $115.85. 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 $127.17 to $128.09. 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 $128.36 to $129.21. 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 $129.37 to $130.35. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $130.47 to $131.46. 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.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $131.47 to $132.40. 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.

F11: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $132.47 to $133.46. 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.

F12: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $133.47 to $134.43. 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.

F13: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $134.47 to $135.03. 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.