SEC Form 4 · accession 0001561550-26-000242

Datadog, Inc. · DDOG

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Amit Agarwal

Director

Period of report

Jul 9, 2026

Accepted (ET)

Jul 13, 2026 · 4:34 pm EDT

Rule 10b5-1 plan

yes — trade under a plan

Issuer CIK

0001561550

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock^F1,F2	Jul 9, 2026	C	20,000	—	A	21,640	I	By Trust
Class A Common Stock^F4,F2	Jul 9, 2026	S	200	$255.7321	D	21,440	I	By Trust
Class A Common Stock^F5,F2	Jul 9, 2026	S	200	$257.205	D	21,240	I	By Trust
Class A Common Stock^F2	Jul 9, 2026	S	100	$258.55	D	21,140	I	By Trust
Class A Common Stock^F2	Jul 9, 2026	S	100	$260.05	D	21,040	I	By Trust
Class A Common Stock^F2	Jul 9, 2026	S	162	$261.95	D	20,878	I	By Trust
Class A Common Stock^F6,F2	Jul 9, 2026	S	238	$263.6166	D	20,640	I	By Trust
Class A Common Stock^F7,F2	Jul 9, 2026	S	400	$264.4775	D	20,240	I	By Trust
Class A Common Stock^F8,F2	Jul 9, 2026	S	800	$265.6545	D	19,440	I	By Trust
Class A Common Stock^F9,F2	Jul 9, 2026	S	4,073	$266.982	D	15,367	I	By Trust
Class A Common Stock^F10,F2	Jul 9, 2026	S	8,027	$267.8474	D	7,340	I	By Trust
Class A Common Stock^F11,F2	Jul 9, 2026	S	4,700	$268.7284	D	2,640	I	By Trust
Class A Common Stock^F12,F2	Jul 9, 2026	S	700	$269.5914	D	1,940	I	By Trust
Class A Common Stock^F13,F2	Jul 9, 2026	S	300	$270.4933	D	1,640	I	By Trust
Class A Common Stock^F14	holding	—	—		—	6,541	I	By Trust
Class A Common Stock	holding	—	—		—	29,071	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Common Stock^F2,F1	—	Jul 9, 2026	C	20,000	D	—	—	Class A Common Stock	20,000	290,059	I
Class B Common Stock^F14,F1	—	holding	—	—	—	—	—	Class A Common Stock	593,464	593,464	I
Class B Common Stock^F15,F1	—	holding	—	—	—	—	—	Class A Common Stock	42,976	42,976	I

Explanation of responses

F1Each 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.
F10Price reported is a weighted-average sales price. The shares were sold at prices ranging from $267.34 to $268.31. 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.
F11Price reported is a weighted-average sales price. The shares were sold at prices ranging from $268.37 to $269.34. 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.
F12Price reported is a weighted-average sales price. The shares were sold at prices ranging from $269.39 to $269.92. 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.
F13Price reported is a weighted-average sales price. The shares were sold at prices ranging from $270.4 to $270.68. 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.
F14Shares are held directly by Agarwal 2019 Family Trust, of which the Reporting Person's spouse is Trustee.
F15Shares are held by Reporting Person's spouse.
F2Shares are held directly by Agarwal 2018 Family Trust, of which the Reporting Person's spouse is Trustee.
F3Shares sold pursuant to a 10b5-1 plan dated March 13, 2026
F4Price reported is a weighted-average sales price. The shares were sold at prices ranging from $255.24 to $256.22. 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.
F5Price reported is a weighted-average sales price. The shares were sold at prices ranging from $257.18 to $257.23. 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.
F6Price reported is a weighted-average sales price. The shares were sold at prices ranging from $263.15 to $264.12. 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.
F7Price reported is a weighted-average sales price. The shares were sold at prices ranging from $264.24 to $264.69. 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.
F8Price reported is a weighted-average sales price. The shares were sold at prices ranging from $265.28 to $266.06. 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.
F9Price reported is a weighted-average sales price. The shares were sold at prices ranging from $266.34 to $267.33. 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.