Datadog (DDOG) Form 144 lists RSU resale; affiliate sale recorded

Rhea-AI Filing Summary

Merrill Private Wealth Management submitted a Form 144 notice relating to the proposed sale of common stock of Datadog, Inc. The filing lists restricted stock units dated 06/01/2025 and records a recent sale by David Galloreese on 06/02/2026.

The filing shows brokerage and issuer identifiers and a NASDAQ listing; it is a routine Section 144 notice of securities to be sold and does not itself report transaction settlement details or proceeds.

Insights

Securities Counsel

Routine Form 144 notice for Datadog common stock tied to RSUs and a recent affiliate sale.

The filing lists restricted stock units dated 06/01/2025 and records a sale by David Galloreese on 06/02/2026 with a monetary figure of $1,258,564.38 shown. Form 144 is a notice under Rule 144 for proposed resale by affiliates and does not itself transfer title.

Timing, settlement details, and purchaser identity are not provided in the excerpt; any compliance or holding-period implications depend on conditions not stated here.

Key Figures

RSU grant date: 06/01/2025 Affiliate sale date: 06/02/2026 Monetary figure shown: $1,258,564.38 +3 more

6 metrics

RSU grant date 06/01/2025 RSU listed as the security to be sold

Affiliate sale date 06/02/2026 Sale by David Galloreese shown under securities sold during the past 3 months

Monetary figure shown $1,258,564.38 Amount listed alongside David Galloreese's sale entry

Filing/processing date 06/09/2026 Date appearing near issuer/securities metadata

Identifier number 330825798 Identifier shown in issuer/securities information block

Identifier amount 918590.23 Numeric value present in the securities information section

Key Terms

Form 144, RSU, NASDAQ

3 terms

Form 144 regulatory

"lists proposed resale of common stock under Rule 144"

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.

RSU financial

"COMMON | 06/01/2025 | RSU | DATADOG, INC."

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

NASDAQ market

"06/09/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

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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	MERRILL PRIVATE WEALTH MANAGEMENT 555 CALIFORNIA STREET, SUITE 1800 SAN FRANCISCO CA 94104	4013	918590.23	330825798	06/09/2026	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	06/01/2025	RSU	DATADOG, INC.			4013	06/01/2025	CASH

* 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
DAVID GALLOREESE 620 Eighth Avenue 45th Floor New York NY 10018	COMMON	06/02/2026	4711	1258564.38

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 DDOG Form 144 indicate about the securities being sold?

The Form 144 lists proposed resale of Datadog common stock tied to an RSU dated 06/01/2025. It notifies the SEC of an affiliate resale but does not confirm settlement, number of shares, or the buyer.

Who is named as having sold Datadog shares in the filing?

The excerpt records a sale by David Galloreese on 06/02/2026 with a monetary figure of $1,258,564.38. The filing provides the seller's address and sale date but not transaction mechanics.

Does this Form 144 show proceeds received by Datadog (DDOG)?

No. The filing is a resale notice by an affiliate; it does not state that Datadog received proceeds. The excerpt offers no information about issuer proceeds or use of funds.

What security type and grant date are listed in the DDOG excerpt?

The filing lists Common stock and an RSU grant dated 06/01/2025. Those items are shown as the securities tied to the proposed resale in the excerpt.

Is the DDOG listing exchange specified in the Form 144 excerpt?

Yes. The excerpt shows NASDAQ as the exchange. Other administrative identifiers appear, but the filing excerpt does not include further exchange-trade details.