Datadog, Inc. — Director's Dealing 2020

Dec 18, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-12-16

Reporting Person: Agarwal Amit (Chief Product Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-16	Common A Common Stock	C	25000	$0.00	Acquired	159262	Direct
2020-12-16	Common A Common Stock	S	2205	$102.0646	Disposed	157057	Direct
2020-12-16	Common A Common Stock	S	6300	$103.2746	Disposed	150757	Direct
2020-12-16	Common A Common Stock	S	16395	$104.2005	Disposed	134362	Direct
2020-12-16	Common A Common Stock	S	100	$104.84	Disposed	134262	Direct
2020-12-16	Common A Common Stock	C	10000	$0.00	Acquired	10000	Indirect
2020-12-16	Common A Common Stock	S	800	$102.185	Disposed	9200	Indirect
2020-12-16	Common A Common Stock	S	3575	$103.4166	Disposed	5625	Indirect
2020-12-16	Common A Common Stock	S	5625	$104.236	Disposed	0	Indirect
2020-12-16	Common A Common Stock	C	55000	$0.00	Acquired	55000	Indirect
2020-12-16	Common A Common Stock	S	4800	$102.0836	Disposed	50200	Indirect
2020-12-16	Common A Common Stock	S	13099	$103.2532	Disposed	37101	Indirect
2020-12-16	Common A Common Stock	S	36701	$104.1867	Disposed	400	Indirect
2020-12-16	Common A Common Stock	S	400	$104.805	Disposed	0	Indirect
2020-12-16	Common A Common Stock	C	25000	$0.00	Acquired	25000	Indirect
2020-12-16	Common A Common Stock	S	2262	$102.0685	Disposed	22738	Indirect
2020-12-16	Common A Common Stock	S	5733	$103.2428	Disposed	17005	Indirect
2020-12-16	Common A Common Stock	S	16605	$104.1849	Disposed	400	Indirect
2020-12-16	Common A Common Stock	S	400	$104.765	Disposed	0	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-11-29	Class B Common Stock	$	G	260100	Disposed		Class A Common Stock (260100)	Direct
2020-12-16	Class B Common Stock	$	C	25000	Disposed		Class A Common Stock (25000)	Direct
2020-12-16	Class B Common Stock	$	C	10000	Disposed		Class A Common Stock (10000)	Indirect
2020-12-16	Class B Common Stock	$	C	55000	Disposed		Class A Common Stock (55000)	Indirect
2020-12-16	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 $101.62 to $102.54. 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 $102.67 to $103.65. 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 $103.67 to $104.66. 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 Reporting Person's spouse.

F7: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.74 to $102.73. 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.

F8: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $102.82 to $103.81. 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.

F9: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $103.82 to $104.67. 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: Shares are held directly by Amit Agarwal 2019 GRAT, of which the Reporting Person is Trustee.

F11: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.62 to $102.61. 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 $102.65 to $103.64. 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 $103.65 to $104.64. 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 $104.68 to $104.87. 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.

F15: Shares are held directly by Amit Agarwal 2018 GRAT, of which the Reporting Person is Trustee.

F16: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.67 to $102.64. 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 $102.67 to $103.65. 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 $103.67 to $104.66. 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 $104.67 to $104.87. 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.