Datadog, Inc. — Director's Dealing 2020

Dec 16, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-12-14

Reporting Person: Richardson Julie (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-12-14	Class A Common Stock	C	3126	$7.9567	Acquired	5427	Direct
2020-12-14	Class A Common Stock	S	194	$99.8814	Disposed	5233	Direct
2020-12-14	Class A Common Stock	S	953	$101.1114	Disposed	4280	Direct
2020-12-14	Class A Common Stock	S	1779	$102.1166	Disposed	2501	Direct
2020-12-14	Class A Common Stock	S	200	$102.8012	Disposed	2301	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-12-14	Stock Option (Right to Buy)	$7.9567	M	3126	Disposed	2029-06-12	Class B Common Stock (3126)	Direct
2020-12-14	Class B Common Stock	$	M	3126	Acquired		Class A Common Stock (3126)	Direct
2020-12-14	Class B Common Stock	$	C	3126	Disposed		Class A Common Stock (3126)	Direct

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 May 14, 2020.

F3: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $99.58 to $100.08. 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.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $100.64 to $101.57. 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 $101.69 to $102.59. 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.

F6: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $102.72 to $102.89. 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.

F7: 25% of the shares underlying the option vested on June 11, 2020, with the remainder vesting in equal monthly installments thereafter over three years.