Datadog, Inc. — Director's Dealing 2020

Feb 5, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-02-03

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-03	Class A Common Stock	C	109600	—	Acquired	109600	Direct
2020-02-03	Class A Common Stock	S	41116	$44.1464	Disposed	68484	Direct
2020-02-03	Class A Common Stock	S	58284	$45.0551	Disposed	10200	Direct
2020-02-03	Class A Common Stock	S	6300	$45.9407	Disposed	3900	Direct
2020-02-03	Class A Common Stock	S	3900	$46.8051	Disposed	0	Direct
2020-02-03	Class A Common Stock	C	37500	—	Acquired	37500	Indirect
2020-02-03	Class A Common Stock	S	14310	$44.1545	Disposed	23190	Indirect
2020-02-03	Class A Common Stock	S	19790	$45.0658	Disposed	3400	Indirect
2020-02-03	Class A Common Stock	S	2000	$45.9303	Disposed	1400	Indirect
2020-02-03	Class A Common Stock	S	1400	$46.7843	Disposed	0	Indirect
2020-02-03	Class A Common Stock	C	25000	—	Acquired	25000	Indirect
2020-02-03	Class A Common Stock	S	9439	$44.1474	Disposed	15561	Indirect
2020-02-03	Class A Common Stock	S	13361	$45.0634	Disposed	2200	Indirect
2020-02-03	Class A Common Stock	S	1100	$45.8948	Disposed	1100	Indirect
2020-02-03	Class A Common Stock	S	1100	$46.8291	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-03	Class B Common Stock	$	C	109600	Disposed		Class B Common Stock (109600)	Direct
2020-02-03	Class B Common Stock	$	C	37500	Disposed		Class B Common Stock (37500)	Indirect
2020-02-03	Class B Common Stock	$	C	25000	Disposed		Class B Common Stock (25000)	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.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $43.57 to $44.56. 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 $44.57 to $45.56. 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 $45.59 to $46.47. 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 $46.62 to $47.39. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $43.57 to $44.56. 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 $44.58 to $45.55. 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.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $45.61 to $46.44. 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 $46.62 to $47.26. 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: 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.

F13: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $43.57 to $44.56. 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.

F14: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $44.57 to $45.56. 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.

F15: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $45.60 to $46.44. 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.

F16: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $46.62 to $47.31. 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.