Director sale notice — Datadog (NASDAQ: DDOG) reports 23,023-share sale

Rhea-AI Filing Summary

Datadog insider sale reported via Form 144. Director or affiliate Yanbing Li reported the sale of 23,023 shares of Common Stock on 03/02/2026 for $2,544,865.72. The filing also lists restricted stock scheduled for potential sale: 10,665 (09/01/2025), 2,451 (12/01/2025), 4,268 (03/01/2026), and 2,450 (03/01/2026).

Key Figures

Shares sold (past 3 months): 23,023 shares Reported sale value: $2,544,865.72 Restricted stock scheduled (09/01/2025): 10,665 shares +3 more

6 metrics

Shares sold (past 3 months) 23,023 shares sale on 03/02/2026

Reported sale value $2,544,865.72 aggregate proceeds from 03/02/2026 sale

Restricted stock scheduled (09/01/2025) 10,665 shares Restricted Stock dated 09/01/2025

Restricted stock scheduled (12/01/2025) 2,451 shares Restricted Stock dated 12/01/2025

Restricted stock scheduled (03/01/2026) 4,268 shares Restricted Stock dated 03/01/2026

Restricted stock scheduled (03/01/2026) 2,450 shares Restricted Stock dated 03/01/2026

Key Terms

Form 144, Restricted Stock, Common Stock

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock financial

"Securities To Be Sold | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Common Stock financial

"144: Securities To Be Sold | Common"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	19834	3914281.55	330825798	05/08/2026	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 *
Common	09/01/2025	Restricted Stock	Issuer			10665	09/01/2025	Not Applicable
Common	12/01/2025	Restricted Stock	Issuer			2451	12/01/2025	Not Applicable
Common	03/01/2026	Restricted Stock	Issuer			4268	03/01/2026	Not Applicable
Common	03/01/2026	Restricted Stock	Issuer			2450	03/01/2026	Not Applicable

* 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
YANBING LI 620 8th Avenue 45th Floor New York NY 10018	Common	03/02/2026	23023	2544865.72

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What did the Form 144 for DDOG disclose?

The filing discloses a reported sale of 23,023 shares on 03/02/2026 valued at $2,544,865.72. It also lists scheduled restricted stock items with specific vesting dates and share counts.

Who is the reporting person in the DDOG Form 144?

The Form 144 identifies Yanbing Li as the reporting person. The filing gives an address for the reporting person and ties the reported sale to that individual or their associated account.

Are additional shares scheduled for sale according to the filing?

Yes. The filing lists restricted stock items potentially subject to sale: 10,665 (09/01/2025), 2,451 (12/01/2025), 4,268 (03/01/2026), and 2,450 (03/01/2026). The filing presents these as securities to be sold.

What exchange and security type are referenced in the filing?

The sale involves Common Stock listed on NASDAQ. The securities identified include Restricted Stock entries with specific dates and share counts shown in the filing.