Datadog seller plans about $5.0M stock sale

Datadog, Inc. (DDOG) reports that Alexis Le-Quoc has filed a notice to sell 21,123 shares of Class A Common Stock under Rule 144 through Morgan Stanley Smith Barney LLC, with an indicated value of about $4,963,905.

Rhea-AI Filing Summary

Datadog, Inc. (DDOG) reports that Alexis Le-Quoc has filed a notice to sell 21,123 shares of Class A Common Stock under Rule 144 through Morgan Stanley Smith Barney LLC, with an indicated value of about $4,963,905. The filing lists 334,904,614 shares of this class outstanding as of September 2, 2026.

The shares to be sold arise from Restricted Stock Units and Performance Stock Units vesting on September 1, 2026, issued as compensation by Datadog. The notice also discloses multiple prior open-market sales of Datadog Class A shares by Alexis Le-Quoc over the past three months.

Key Figures

Shares to be sold under Rule 144: 21,123 shares Indicated value of shares to be sold: $4,963,905 Class A shares outstanding: 334,904,614 shares +4 more

7 metrics

Shares to be sold under Rule 144 21,123 shares Proposed sale of Datadog Class A Common Stock by Alexis Le-Quoc

Indicated value of shares to be sold $4,963,905 Estimated value of 21,123 Class A shares covered by the notice

Class A shares outstanding 334,904,614 shares Datadog Class A Common Stock outstanding as of September 2, 2026

Sale on June 1, 2026 53,912 shares for $14,612,578.04 Past 3 months Datadog Class A sale by Alexis Le-Quoc

Sale on June 2, 2026 21,506 shares for $5,745,422.53 Past 3 months Datadog Class A sale by Alexis Le-Quoc

Sale on July 8, 2026 53,912 shares for $13,868,382.19 Past 3 months Datadog Class A sale by Alexis Le-Quoc

Sale on August 24, 2026 43,224 shares for $9,882,290.15 Most recent listed Datadog Class A sale by Alexis Le-Quoc

Key Terms

Rule 144, Restricted Stock Units, Performance Stock Units, Form S-8, +1 more

5 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Restricted Stock Units and Performance Stock Units vesting"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Performance Stock Units financial

"Restricted Stock Units and Performance Stock Units vesting"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Form S-8 regulatory

"Securities to be sold were registered on Form S-8"

A Form S-8 is a U.S. Securities and Exchange Commission registration that lets a public company set aside shares for employee benefit plans and stock-based compensation. Think of it as opening a dedicated account that authorizes the company to issue or reserve stock for workers and directors; it matters to investors because it enables share dilution when those awards are granted or exercised and signals how management is compensated and incentivized.

Class A Common Stock financial

"Class A Common Stock | Morgan Stanley Smith Barney LLC"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Datadog (DDOG) disclose in this Form 144 filing?

The filing states that Alexis Le-Quoc plans to sell 21,123 Datadog Class A shares under Rule 144, originating from vested Restricted Stock Units and Performance Stock Units, with the transaction to be executed through Morgan Stanley Smith Barney LLC.

How many Datadog (DDOG) shares are proposed to be sold in this notice?

The notice reports a proposed sale of 21,123 shares of Datadog Class A Common Stock, with an indicated value of approximately $4,963,905, to be sold pursuant to Rule 144 through a designated broker.

What is the stated number of Datadog (DDOG) Class A shares outstanding?

The document lists 334,904,614 shares of Datadog Class A Common Stock outstanding, with this figure tied to information as of September 2, 2026; this is a baseline figure and not the amount being sold in this notice.

What is the source of the Datadog (DDOG) shares being sold by Alexis Le-Quoc?

The shares to be sold come from Restricted Stock Units and Performance Stock Units vesting on September 1, 2026, which were issued by Datadog as compensation to Alexis Le-Quoc.

What prior Datadog (DDOG) share sales by Alexis Le-Quoc are disclosed?

The filing lists several sales of Datadog Class A shares by Alexis Le-Quoc in the past three months, including 53,912 shares on June 1, 2026 for about $14,612,578.04 and 43,224 shares on August 24, 2026 for about $9,882,290.15.

On which market is Datadog (DDOG) Class A Common Stock listed in this notice?

The notice identifies Datadog’s Class A Common Stock as traded on the NASDAQ market, in connection with the proposed Rule 144 sale by Alexis Le-Quoc.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/02/2026 - 04:34 PM EDT Accepted by SEC EDGAR 09/02/2026 - 04:33 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001783984
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Datadog, Inc.
SEC File Number	001-39051
Address of Issuer	620 8th Avenue 45th Floor New York NEW YORK 10018
Phone	866-329-4466
Name of Person for Whose Account the Securities are To Be Sold	Alexis Le-Quoc
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Services 200 W Civic Center Dr - 4th Floor Sandy UT 84070	21123	4963905	334904614	09/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	09/01/2026	Restricted Stock Units and Performance Stock Units vesting	Issuer			21123	09/01/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	08/24/2026	43224	9882290.15
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	08/10/2026	53912	13659165.89
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	07/20/2026	43224	11464111.33
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	07/08/2026	53912	13868382.19
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/22/2026	43224	9551315.34
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/02/2026	21506	5745422.53
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/01/2026	53912	14612578.04

144: Remarks and Signature

Remarks	Securities to be sold were registered on Form S-8
Date of Notice	09/02/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Alexis Le-Quoc
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)