Datadog, Inc. — Director's Dealing 2020

Dec 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-12-02

Reporting Person: Agarwal Amit (Chief Product Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-02	Common A Common Stock	C	25000	$0.00	Acquired	159262	Direct
2020-12-02	Common A Common Stock	S	1000	$90.8843	Disposed	158262	Direct
2020-12-02	Common A Common Stock	S	1500	$91.8386	Disposed	156762	Direct
2020-12-02	Common A Common Stock	S	21149	$93.125	Disposed	135613	Direct
2020-12-02	Common A Common Stock	S	1351	$93.6915	Disposed	134262	Direct
2020-12-02	Common A Common Stock	C	10000	$0.00	Acquired	10000	Indirect
2020-12-02	Common A Common Stock	S	700	$91.2186	Disposed	9300	Indirect
2020-12-02	Common A Common Stock	S	1092	$92.4384	Disposed	8208	Indirect
2020-12-02	Common A Common Stock	S	7908	$93.1743	Disposed	300	Indirect
2020-12-02	Common A Common Stock	S	300	$93.7867	Disposed	0	Indirect
2020-12-02	Common A Common Stock	C	55000	$0.00	Acquired	55000	Indirect
2020-12-02	Common A Common Stock	S	1700	$90.8307	Disposed	53300	Indirect
2020-12-02	Common A Common Stock	S	3000	$91.626	Disposed	50300	Indirect
2020-12-02	Common A Common Stock	S	32395	$92.9828	Disposed	17905	Indirect
2020-12-02	Common A Common Stock	S	17905	$93.4477	Disposed	0	Indirect
2020-12-02	Common A Common Stock	C	25000	$0.00	Acquired	25000	Indirect
2020-12-02	Common A Common Stock	S	900	$90.85	Disposed	24100	Indirect
2020-12-02	Common A Common Stock	S	1600	$91.825	Disposed	22500	Indirect
2020-12-02	Common A Common Stock	S	20331	$93.1006	Disposed	2169	Indirect
2020-12-02	Common A Common Stock	S	2169	$93.6373	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-12-02	Class B Common Stock	$	C	25000	Disposed		Class A Common Stock (25000)	Direct
2020-12-02	Class B Common Stock	$	C	10000	Disposed		Class A Common Stock (10000)	Indirect
2020-12-02	Class B Common Stock	$	C	55000	Disposed		Class A Common Stock (55000)	Indirect
2020-12-02	Class B Common Stock	$	C	25000	Disposed		Class A Common Stock (25000)	Indirect

Footnotes

F1: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock 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 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 entered into on September 2, 2020.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $90.39 to $91.28. 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 $91.43 to $92.39. 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.

F5: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $92.53 to $93.52. 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 $93.54 to $93.91. 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: Shares are held by Reporting Person's spouse.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $90.69 to $91.52. 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 $91.74 to $92.73. 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 $92.75 to $93.69. 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 $93.75 to $93.81. 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 directly by Amit Agarwal 2019 GRAT, of which the Reporting Person is Trustee.

F13: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $90.25 to $91.21. 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 $91.25 to $92.08. 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 $92.25 to $93.24. 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 $93.25 to $93.91. 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.

F17: Shares are held directly by Amit Agarwal 2018 GRAT, of which the Reporting Person is Trustee.

F18: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $90.39 to $91.05. 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.

F19: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $91.43 to $92.34. 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.

F20: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $92.52 to $93.51. 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 $93.52 to $93.84. 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.