Datadog, Inc. — Director's Dealing 2021

Oct 15, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2021-10-12

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-12	Class A Common Stock	C	109104	$0.00	Disposed	353147	Direct
2021-10-12	Class A Common Stock	S	19337	$142.1639	Disposed	333810	Direct
2021-10-12	Class A Common Stock	S	18862	$143.0078	Disposed	314948	Direct
2021-10-12	Class A Common Stock	S	8756	$144.2449	Disposed	306192	Direct
2021-10-12	Class A Common Stock	S	27682	$145.3726	Disposed	278510	Direct
2021-10-12	Class A Common Stock	S	34467	$145.883	Disposed	244043	Direct
2021-10-13	Class A Common Stock	C	109104	$0.00	Acquired	353147	Direct
2021-10-13	Class A Common Stock	S	65809	$150.4463	Disposed	287338	Direct
2021-10-13	Class A Common Stock	S	43295	$151.3948	Disposed	244043	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-10-12	Class B Common Stock	$	C	109104	Disposed		Class A Common Stock (109104)	Direct
2021-10-13	Class B Common Stock	$	C	109104	Disposed		Class A Common Stock (109104)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	865	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class B Common Stock	$		Class A Common Stock (3553011)	3553011	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 June 14, 2021.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $141.60 to $142.58. 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 $142.61 to $143.54. 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 $143.67 to $144.66. 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 $144.67 to $145.66. 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 $145.67 to $146.48. 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 $150.00 to $150.99. 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 $151.00 to $151.88. 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: Shares are held by the Olivier Pomel 2018 GRAT.