Datadog officer plans sale of 991 common shares

Datadog, Inc. (DDOG) is named as the issuer in a Form 144 notice filed for the account of officer David Galloreese.

Rhea-AI Filing Summary

Datadog, Inc. (DDOG) is named as the issuer in a Form 144 notice filed for the account of officer David Galloreese. The filing indicates an intent to sell 991 shares of common stock, held through Merrill Private Wealth Management and originating from RSU awards. It also lists prior sales of Datadog common stock by Galloreese over the past three months, including 4,013 shares on June 9, 2026 for $918,590.23 and 4,711 shares on June 2, 2026 for $1,258,564.38.

Key Figures

Shares intended to be sold: 991 shares of common stock Shares sold on June 9, 2026: 4,013 shares Proceeds on June 9, 2026: $918,590.23 +2 more

5 metrics

Shares intended to be sold 991 shares of common stock Amount of Datadog, Inc. common stock listed in the Form 144 notice

Shares sold on June 9, 2026 4,013 shares Datadog common stock sold by David Galloreese during the past 3 months

Proceeds on June 9, 2026 $918,590.23 Value of Datadog common stock sale of 4,013 shares on June 9, 2026

Shares sold on June 2, 2026 4,711 shares Datadog common stock sold by David Galloreese during the past 3 months

Proceeds on June 2, 2026 $1,258,564.38 Value of Datadog common stock sale of 4,711 shares on June 2, 2026

Key Terms

Form 144, Rule 144, restricted stock unit, RSU

4 terms

Form 144 regulatory

"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.

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 unit financial

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

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

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.

FAQ

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

What does the Form 144 filing involving DDOG disclose?

It discloses that officer David Galloreese filed a Form 144 for Datadog, Inc. common stock, indicating an intent to sell 991 shares of DDOG held via Merrill Private Wealth Management, with the shares originating from RSU awards.

How many DDOG shares are intended to be sold under this Form 144?

The Form 144 reports an intent to sell 991 shares of Datadog, Inc. common stock. These shares are associated with RSU grants and are held through Merrill Private Wealth Management.

What prior DDOG share sales by David Galloreese are reported?

The notice lists two prior sales of Datadog common stock in the past three months: 4,013 shares sold on June 9, 2026 for $918,590.23, and 4,711 shares sold on June 2, 2026 for $1,258,564.38.

What type of security is being reported in this DDOG Form 144?

The Form 144 covers common stock of Datadog, Inc. The securities to be sold are identified as common shares derived from RSU (restricted stock unit) awards, with an indicated amount of 991 shares.

Who is the beneficial owner associated with this DDOG Form 144?

The person for whose account the securities are to be sold is David Galloreese, identified as an officer in relation to Datadog, Inc. The filing also notes that Merrill Private Wealth Management is the brokerage handling the common stock.

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

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Available on EDGAR 09/01/2026 - 04:12 PM EDT Accepted by SEC EDGAR 09/01/2026 - 04:11 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	0001757760
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 Eighth Avenue 45th Floor New York NEW YORK 10018
Phone	8663294466
Name of Person for Whose Account the Securities are To Be Sold	GALLOREESE DAVID
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	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
COMMON	MERRILL PRIVATE WEALTH MANAGEMENT 555 CALIFORNIA STREET, SUITE 1800 SAN FRANCISCO CA 94104	991	230713.77	334904614	09/01/2026	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.			991	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	06/09/2026	4013	918590.23
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	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/06/2026
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	DAVID GALLOREESE
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)