Datadog, Inc. — Director's Dealing 2020

Nov 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-11-02

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-11-02	Class A Common Stock	C	126542	—	Acquired	126542	Indirect
2020-11-02	Class A Common Stock	S	25908	$87.3632	Disposed	100634	Indirect
2020-11-02	Class A Common Stock	S	69415	$88.3015	Disposed	31219	Indirect
2020-11-02	Class A Common Stock	S	9363	$89.1368	Disposed	21856	Indirect
2020-11-02	Class A Common Stock	S	18552	$90.2467	Disposed	3304	Indirect
2020-11-02	Class A Common Stock	S	3304	$91.0928	Disposed	0	Indirect
2020-11-02	Class A Common Stock	C	51627	—	Acquired	51627	Indirect
2020-11-02	Class A Common Stock	S	10176	$87.4595	Disposed	41451	Indirect
2020-11-02	Class A Common Stock	S	24480	$88.3638	Disposed	16971	Indirect
2020-11-02	Class A Common Stock	S	3944	$89.2037	Disposed	13027	Indirect
2020-11-02	Class A Common Stock	S	10827	$90.2412	Disposed	2200	Indirect
2020-11-02	Class A Common Stock	S	2200	$91.0852	Disposed	0	Indirect
2020-11-02	Class A Common Stock	C	49723	—	Acquired	49723	Indirect
2020-11-02	Class A Common Stock	S	10200	$87.4879	Disposed	39523	Indirect
2020-11-02	Class A Common Stock	S	22500	$88.3754	Disposed	17023	Indirect
2020-11-02	Class A Common Stock	S	4390	$89.192	Disposed	12633	Indirect
2020-11-02	Class A Common Stock	S	10733	$90.2646	Disposed	1900	Indirect
2020-11-02	Class A Common Stock	S	1900	$91.1305	Disposed	0	Indirect
2020-11-02	Class A Common Stock	C	49609	—	Acquired	49609	Indirect
2020-11-02	Class A Common Stock	S	9000	$87.4384	Disposed	40609	Indirect
2020-11-02	Class A Common Stock	S	23100	$88.3396	Disposed	17509	Indirect
2020-11-02	Class A Common Stock	S	5000	$89.2104	Disposed	12509	Indirect
2020-11-02	Class A Common Stock	S	10909	$90.2683	Disposed	1600	Indirect
2020-11-02	Class A Common Stock	S	1600	$91.1869	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-11-02	Class B Common Stock	$	C	126542	Disposed		Class B Common Stock (126542)	Indirect
2020-11-02	Class B Common Stock	$	C	51627	Disposed		Class B Common Stock (51627)	Indirect
2020-11-02	Class B Common Stock	$	C	49723	Disposed		Class B Common Stock (49723)	Indirect
2020-11-02	Class B Common Stock	$	C	49609	Disposed		Class B Common Stock (49609)	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 September 14, 2020.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.80 to $87.79. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $87.80 to $88.78. 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 $88.80 to $89.79. 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.

F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $89.81 to $90.78. 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 $90.87 to $91.56. 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: 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 $86.85 to $87.84. 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 $87.85 to $88.84. 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 $88.86 to $89.72. 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 $89.88 to $90.86. 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 $90.89 to $91.77. 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: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.89 to $87.88. 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.

F17: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $87.89 to $88.88. 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.

F18: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $88.90 to $89.88. 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.

F19: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $89.90 to $90.89. 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 $90.90 to $91.62. 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: 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.

F22: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $86.84 to $87.82. 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.

F23: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $87.84 to $88.83. 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 $88.88 to $89.87. 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 $89.93 to $90.92. 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 $90.93 to $91.79. 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.