Datadog, Inc. — Director's Dealing 2022

Mar 2, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2022-02-25

Reporting Person: De Madre Armelle (Chief People Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-02-25	Class A Common Stock	C	5625	$0.00	Acquired	60863	Direct
2022-02-25	Class A Common Stock	S	200	$156.10	Disposed	60663	Direct
2022-02-25	Class A Common Stock	S	800	$157.48	Disposed	59863	Direct
2022-02-25	Class A Common Stock	S	1300	$158.6346	Disposed	58563	Direct
2022-02-25	Class A Common Stock	S	1650	$159.6742	Disposed	56913	Direct
2022-02-25	Class A Common Stock	S	1400	$160.8279	Disposed	55513	Direct
2022-02-25	Class A Common Stock	S	275	$161.5304	Disposed	55238	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-02-25	Stock Option (Right to Buy)	$7.9567	M	5625	Disposed	2029-06-28	Class B Common Stock (5625)	Direct
2022-02-25	Class B Common Stock	$	M	5625	Acquired		Class A Common Stock (5625)	Direct
2022-02-25	Class B Common Stock	$	C	5625	Disposed		Class A Common Stock (5625)	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: Includes 271 shares acquired on November 13, 2020 and 289 shares acquired on May 14, 2021 under the Issuer's Employee Stock Purchase Plan.

F3: Shares sold pursuant to a 10b5-1 plan entered into on August 18, 2020.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $155.80 to $156.40. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $157.08 to $157.96. 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 $158.12 to $159.08. 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 $159.20 to $160.14. 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 $160.41 to $161.31. 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 $161.43 to $161.60. 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: Option vested as to 25% on June 20, 2020 and in equal monthly installments thereafter over three years.