[144] Datadog, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 filed for Datadog, Inc. (DDOG) reporting proposed sale of Class A common stock by an insider. The notice lists 10,608 shares intended for sale through Morgan Stanley Smith Barney LLC on 09/02/2025, with an aggregate market value of $1,449,901.44. The shares were acquired on 09/01/2025 via restricted stock units and performance stock units that vested and are being sold as compensation. The filing also discloses four prior sales by Sean Michael Walters in the past three months totaling 34,174 shares for gross proceeds of $4,420,881.75 (sums shown per sale in the filing).

Positive

• Disclosure compliance: The filer provides required Rule 144 details including broker, share counts, dates, and vesting source (RSUs/PSUs).
• Source of shares specified: Shares to be sold were acquired via restricted stock units and performance stock units vesting, and payment is noted as compensation.

Negative

• Insider selling activity: The filing shows proposed sale of 10,608 shares and prior sales of 34,174 shares in the past three months, representing insider liquidity that some investors may view negatively.

Insights

Financial Analyst

TL;DR: Insider sale of recently vested RSUs totaling 10,608 shares to be sold; prior months show additional dispositions totaling 34,174 shares.

The filing documents a routine Form 144 sale tied to RSU/PSU vesting on 09/01/2025, with the broker named and an approximate market value provided. The transaction appears to be compensation-related rather than a purchase financing event. Prior sales by the same individual over the past three months are disclosed with dates and gross proceeds, which helps investors track insider liquidity. Based solely on the filing, this is a disclosed, orderly sale rather than an undisclosed transfer or unusual financing.

Corporate Governance Expert

TL;DR: Proper disclosure of insider sales and representation about absence of material nonpublic information are present; filings comply with Rule 144 format.

The notice includes the required attestations and broker details and identifies the securities as compensation from vesting RSUs/PSUs. The signer represents no undisclosed material adverse information. Documentation of multiple recent sales by the same person is helpful for governance transparency. No regulatory or governance issues are evident from the content provided.

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
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Services 200 W Civic Center Dr - 4th Floor Sandy UT 84070	10608	1449901.44	323270704	09/02/2025	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	09/01/2025	Restricted Stock Units and Performance Stock Units vesting	Issuer			10608	09/01/2025	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
Sean Michael Walters 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	07/03/2025	9469	1420350
Sean Michael Walters 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/17/2025	9468	1183500
Sean Michael Walters 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/11/2025	4170	498268.30
Sean Michael Walters 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/02/2025	11167	1304763.45

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 does the Form 144 for DDOG report?

It reports a proposed sale of 10,608 Class A shares via Morgan Stanley on 09/02/2025 with aggregate market value $1,449,901.44.

How were the shares acquired that are being sold?

The shares were acquired on 09/01/2025 through restricted stock units and performance stock units that vested; payment is listed as compensation.

Has the same person sold other DDOG shares recently?

Yes. Sean Michael Walters sold 9,469 shares on 07/03/2025, 9,468 on 06/17/2025, 4,170 on 06/11/2025, and 11,167 on 06/02/2025.

What were the gross proceeds from the prior sales listed?

The filing shows gross proceeds of $1,420,350, $1,183,500, $498,268.30, and $1,304,763.45 for the four listed sales.

Does the filing state any undisclosed material information?

By signing, the person represents they do not know any material adverse information about the issuer that has not been publicly disclosed.