Datadog, Inc. — Director's Dealing 2020

Oct 13, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Datadog, Inc. (DDOG)
CIK: 0001561550
Period of Report: 2020-10-08

Reporting Person: Callahan Michael James (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-10-08	Class A Common Stock	S	2808	$102.5953	Disposed	52651	Indirect
2020-10-08	Class A Common Stock	S	5155	$103.5386	Disposed	47496	Direct
2020-10-08	Class A Common Stock	S	2037	$104.4637	Disposed	45459	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	20000	Indirect

Footnotes

F1: Shares sold pursuant to a 10b5-1 plan entered into on June 14, 2020.

F2: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $101.96 to $102.95. 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.

F3: The Shares are held by The Callahan-Thernstrom Family Trust, of which Reporting Person is Trustee.

F4: Price reported is a weighted-average sales price. The shares were sold at prices ranging from $103.02 to $104.00. 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 $104.03 to $104.99. 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 The Michael Callahan Grantor Retained Annuity Trust, of which Reporting Person is Trustee.