Datadog, Inc. — Director's Dealing 2020

Jan 23, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-01-21

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-01-21	Class A Common Stock	C	112900	—	Acquired	112900	Indirect
2020-01-21	Class A Common Stock	S	104405	$40.9249	Disposed	8495	Indirect
2020-01-21	Class A Common Stock	S	8495	$41.7693	Disposed	0	Indirect
2020-01-21	Class A Common Stock	C	29200	—	Acquired	29200	Indirect
2020-01-21	Class A Common Stock	S	27000	$40.9238	Disposed	2200	Indirect
2020-01-21	Class A Common Stock	S	2200	$41.7537	Disposed	0	Indirect
2020-01-21	Class A Common Stock	C	25000	—	Acquired	25000	Indirect
2020-01-21	Class A Common Stock	S	23202	$40.9263	Disposed	1798	Indirect
2020-01-21	Class A Common Stock	S	1798	$41.7723	Disposed	0	Indirect
2020-01-21	Class A Common Stock	C	25000	—	Acquired	25000	Indirect
2020-01-21	Class A Common Stock	S	23131	$40.926	Disposed	1869	Indirect
2020-01-21	Class A Common Stock	S	1869	$41.7665	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-01-21	Class B Common Stock	$	C	112900	Disposed		Class B Common Stock (112900)	Indirect
2020-01-21	Class B Common Stock	$	C	29200	Disposed		Class B Common Stock (29200)	Indirect
2020-01-21	Class B Common Stock	$	C	25000	Disposed		Class B Common Stock (25000)	Indirect
2020-01-21	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: Shares are held by the Alexis Le-Quoc Revocable Trust.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $40.47 to $41.46. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $41.47 to $42.22. 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: Shares are held by the Alexis Le-Quoc 2016 GRAT.

F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $40.47 to $41.46. 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.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $41.47 to $42.06. 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 Agathe Le-Quoc 2018 Trust, of which Reporting Person is Trustee. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $40.50 to $41.49. 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.

F11: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $41.51 to $42.05. 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 Artemis Le-Quoc 2018 Trust, of which Reporting Person is Trustee. 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 $40.50 to $41.48. 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.

F14: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $41.50 to $42.03. 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.