SEC Form 4 · accession 0001561550-26-000262

Datadog, Inc. · DDOG

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

Reporting owner

Alexis Le-Quoc

Officer — Chief Technology Officer · Director

Period of report

Aug 10, 2026

Accepted (ET)

Aug 12, 2026 · 4:48 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	Aug 10, 2026	C	43,224	$0.00	A	553,029	D
Class A Common Stock	Aug 10, 2026	C	10,688	$0.00	A	563,717	D
Class A Common Stock^F3	Aug 10, 2026	S	1,100	$231.1509	D	562,617	D
Class A Common Stock^F4	Aug 10, 2026	S	500	$232.398	D	562,117	D
Class A Common Stock^F5	Aug 10, 2026	S	500	$234.062	D	561,617	D
Class A Common Stock^F6	Aug 10, 2026	S	900	$236.1835	D	560,717	D
Class A Common Stock^F7	Aug 10, 2026	S	500	$237.966	D	560,217	D
Class A Common Stock^F8	Aug 10, 2026	S	300	$239.0867	D	559,917	D
Class A Common Stock^F9	Aug 10, 2026	S	300	$240.7433	D	559,617	D
Class A Common Stock^F10	Aug 10, 2026	S	1,100	$242.9545	D	558,517	D
Class A Common Stock^F11	Aug 10, 2026	S	1,500	$243.9663	D	557,017	D
Class A Common Stock^F12	Aug 10, 2026	S	300	$244.8865	D	556,717	D
Class A Common Stock^F13	Aug 10, 2026	S	300	$246.2833	D	556,417	D
Class A Common Stock^F14	Aug 10, 2026	S	1,400	$247.5194	D	555,017	D
Class A Common Stock^F15	Aug 10, 2026	S	3,300	$248.4153	D	551,717	D
Class A Common Stock^F16	Aug 10, 2026	S	4,400	$249.524	D	547,317	D
Class A Common Stock^F17	Aug 10, 2026	S	1,600	$250.4812	D	545,717	D
Class A Common Stock^F18	Aug 10, 2026	S	1,300	$251.5509	D	544,417	D
Class A Common Stock^F19	Aug 10, 2026	S	2,000	$252.7023	D	542,417	D
Class A Common Stock^F20	Aug 10, 2026	S	1,400	$253.535	D	541,017	D
Class A Common Stock^F21	Aug 10, 2026	S	2,608	$255.2674	D	538,409	D
Class A Common Stock^F22	Aug 10, 2026	S	6,869	$256.2953	D	531,540	D
Class A Common Stock^F23	Aug 10, 2026	S	5,531	$257.0637	D	526,009	D
Class A Common Stock^F24	Aug 10, 2026	S	4,600	$258.80	D	521,409	D
Class A Common Stock^F25	Aug 10, 2026	S	1,800	$259.7211	D	519,609	D
Class A Common Stock^F26	Aug 10, 2026	S	8,004	$260.7275	D	511,605	D
Class A Common Stock^F27	Aug 10, 2026	S	1,800	$261.3283	D	509,805	D
Class A Common Stock^F28	holding	—	—		—	169	I	By Trust

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (Right to Buy)^F29	$10.74	Aug 10, 2026	M	18,750	D	—	Jul 19, 2029	Class B Common Stock	18,750	150,000	D
Class B Common Stock^F1	—	Aug 10, 2026	M	18,750	A	—	—	Class A Common Stock	18,750	2,335,552	D
Class B Common Stock^F1	—	Aug 10, 2026	C	53,912	D	—	—	Class A Common Stock	53,912	2,281,640	D
Class B Common Stock^F28,F1	—	holding	—	—	—	—	—	Class A Common Stock	6,146,835	6,146,835	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 $242.59 to $243.57. 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.
F11Price reported is a weighted-average sales price. The shares were sold at prices ranging from $243.63 to $244.41. 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 $244.68 to $245.20. 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 $245.69 to $246.58. 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.
F14Price reported is a weighted-average sales price. The shares were sold at prices ranging from $246.86 to $247.83. 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.
F15Price reported is a weighted-average sales price. The shares were sold at prices ranging from $247.94 to $248.91. 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.
F16Price reported is a weighted-average sales price. The shares were sold at prices ranging from $249.00 to $249.99. 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.
F17Price reported is a weighted-average sales price. The shares were sold at prices ranging from $250.00 to $250.97. 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.
F18Price reported is a weighted-average sales price. The shares were sold at prices ranging from $251.15 to $252.06. 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.
F19Price reported is a weighted-average sales price. The shares were sold at prices ranging from $252.20 to $253.17. 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.
F2Shares sold pursuant to a 10b5-1 plan dated June 13, 2025.
F20Price reported is a weighted-average sales price. The shares were sold at prices ranging from $253.23 to $253.96. 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.
F21Price reported is a weighted-average sales price. The shares were sold at prices ranging from $254.69 to $255.68. 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.
F22Price reported is a weighted-average sales price. The shares were sold at prices ranging from $255.72 to $256.71. 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.
F23Price reported is a weighted-average sales price. The shares were sold at prices ranging from $256.72 to $257.69. 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.
F24Price reported is a weighted-average sales price. The shares were sold at prices ranging from $258.18 to $259.17. 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.
F25Price reported is a weighted-average sales price. The shares were sold at prices ranging from $259.19 to $260.16. 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.
F26Price reported is a weighted-average sales price. The shares were sold at prices ranging from $260.19 to $261.13. 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.
F27Price reported is a weighted-average sales price. The shares were sold at prices ranging from $261.25 to $261.49. 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.
F28Shares are held by the Alexis Le-Quoc Revocable Trust.
F29Option is fully vested and exercisable.
F3Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.96 to $231.40. 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.
F4Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.15 to $232.73. 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.
F5Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.61 to $234.25. 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 $235.60 to $236.57. 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.
F7Price reported is a weighted-average sales price. The shares were sold at prices ranging from $237.70 to $238.46. 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 $238.79 to $239.68. 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.
F9Price reported is a weighted-average sales price. The shares were sold at prices ranging from $240.18 to $241.03. 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.