Datadog, Inc. — Director's Dealing 2020

Sep 3, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-09-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-09-01	Class A Common Stock	C	170389	—	Acquired	170389	Indirect
2020-09-01	Class A Common Stock	S	2328	$83.4771	Disposed	168061	Indirect
2020-09-01	Class A Common Stock	S	22819	$84.7169	Disposed	145242	Indirect
2020-09-01	Class A Common Stock	S	118417	$85.402	Disposed	26825	Indirect
2020-09-01	Class A Common Stock	S	25707	$86.1865	Disposed	1118	Indirect
2020-09-01	Class A Common Stock	S	1118	$87.1194	Disposed	0	Indirect
2020-09-01	Class A Common Stock	C	43956	—	Acquired	43956	Indirect
2020-09-01	Class A Common Stock	S	600	$83.1767	Disposed	43356	Indirect
2020-09-01	Class A Common Stock	S	5502	$84.6953	Disposed	37854	Indirect
2020-09-01	Class A Common Stock	S	30705	$85.3931	Disposed	7149	Indirect
2020-09-01	Class A Common Stock	S	6749	$86.1706	Disposed	400	Indirect
2020-09-01	Class A Common Stock	S	400	$87.0675	Disposed	0	Indirect
2020-09-01	Class A Common Stock	C	37500	—	Acquired	37500	Indirect
2020-09-01	Class A Common Stock	S	500	$83.262	Disposed	37000	Indirect
2020-09-01	Class A Common Stock	S	5231	$84.7336	Disposed	31769	Indirect
2020-09-01	Class A Common Stock	S	26085	$85.4152	Disposed	5684	Indirect
2020-09-01	Class A Common Stock	S	5484	$86.1827	Disposed	200	Indirect
2020-09-01	Class A Common Stock	S	200	$87.055	Disposed	0	Indirect
2020-09-01	Class A Common Stock	C	37500	—	Acquired	37500	Indirect
2020-09-01	Class A Common Stock	S	500	$83.242	Disposed	37000	Indirect
2020-09-01	Class A Common Stock	S	2602	$84.5802	Disposed	34398	Indirect
2020-09-01	Class A Common Stock	S	26996	$85.3258	Disposed	7402	Indirect
2020-09-01	Class A Common Stock	S	7084	$86.0978	Disposed	318	Indirect
2020-09-01	Class A Common Stock	S	318	$87.0647	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-09-01	Class B Common Stock	$	C	170389	Disposed		Class B Common Stock (170389)	Indirect
2020-09-01	Class B Common Stock	$	C	43956	Disposed		Class B Common Stock (43956)	Indirect
2020-09-01	Class B Common Stock	$	C	37500	Disposed		Class B Common Stock (37500)	Indirect
2020-09-01	Class B Common Stock	$	C	37500	Disposed		Class B Common Stock (37500)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	117262	Direct

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 $82.85 to $83.75. 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 $83.92 to $84.91. 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 $84.92 to $85.91. 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 $85.92 to $86.91. 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 $86.98 to $87.35. 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 Alexis Le-Quoc 2016 GRAT.

F10: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $82.78 to $83.70. 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 $83.91 to $84.90. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $84.91 to $85.90. 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.

F13: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $85.91 to $86.80. 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 $86.92 to $87.29. 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.

F15: Shares are held by Offbeat Polymath Trust. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.

F16: Shares sold pursuant to a 10b5-1 plan entered into on December 7, 2019.

F17: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $82.83 to $83.75. 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 $83.94 to $84.93. 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 $84.94 to $85.93. 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.

F20: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $85.94 to $86.90. 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.

F21: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.99 to $87.12. 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.

F22: Shares are held by Endearing Viceroy Trust. Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest, if any, in the shares.

F23: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $82.81 to $83.70. 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.

F24: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $83.81 to $84.80. 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.

F25: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $84.81 to $85.79. 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.

F26: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $85.83 to $86.60. 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.

F27: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.91 to $87.29. 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.