Datadog, Inc. — Director's Dealing 2020

Apr 3, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-04-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-04-01	Class A Common Stock	C	56450	—	Acquired	56450	Indirect
2020-04-01	Class A Common Stock	S	40871	$34.925	Disposed	15579	Indirect
2020-04-01	Class A Common Stock	S	13779	$35.8549	Disposed	1800	Indirect
2020-04-01	Class A Common Stock	S	1800	$36.4598	Disposed	0	Indirect
2020-04-01	Class A Common Stock	C	14600	—	Acquired	14600	Indirect
2020-04-01	Class A Common Stock	S	10500	$34.9111	Disposed	4100	Indirect
2020-04-01	Class A Common Stock	S	3600	$35.837	Disposed	500	Indirect
2020-04-01	Class A Common Stock	S	500	$36.448	Disposed	0	Indirect
2020-04-01	Class A Common Stock	C	12500	—	Acquired	12500	Indirect
2020-04-01	Class A Common Stock	S	9325	$34.9315	Disposed	3175	Indirect
2020-04-01	Class A Common Stock	S	2800	$35.915	Disposed	375	Indirect
2020-04-01	Class A Common Stock	S	375	$36.5307	Disposed	0	Indirect
2020-04-01	Class A Common Stock	C	12500	—	Acquired	12500	Indirect
2020-04-01	Class A Common Stock	S	9300	$34.9268	Disposed	3200	Indirect
2020-04-01	Class A Common Stock	S	2800	$35.9211	Disposed	400	Indirect
2020-04-01	Class A Common Stock	S	400	$36.5675	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-04-01	Class B Common Stock	$	C	56450	Disposed		Class B Common Stock (56450)	Indirect
2020-04-01	Class B Common Stock	$	C	14600	Disposed		Class B Common Stock (14600)	Indirect
2020-04-01	Class B Common Stock	$	C	12500	Disposed		Class B Common Stock (12500)	Indirect
2020-04-01	Class B Common Stock	$	C	12500	Disposed		Class B Common Stock (12500)	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 are held by the Alexis Le-Quoc Revocable Trust.

F3: Shares sold pursuant to a 10b5-1 plan entered into on December 6, 2019.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $34.35 to $35.33. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $35.35 to $36.30. 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 $36.35 to $36.82. 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 Alexis Le-Quoc 2016 GRAT.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $34.35 to $35.33. 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.

F9: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $35.36 to $36.34. 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 $36.36 to $36.59. 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: Shares are held by Offbeat Polymath 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.

F12: Shares sold pursuant to a 10b5-1 plan entered into on December 7, 2019.

F13: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $34.35 to $35.34. 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 $35.37 to $36.31. 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.

F15: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $36.40 to $36.88. 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.

F16: Shares are held by Endearing Viceroy 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.

F17: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $34.35 to $35.34. 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.

F18: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $35.37 to $36.29. 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.

F19: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $36.45 to $36.88. 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.