Datadog (DDOG) Form 144: affiliate plans sale of 4,626 shares

Rhea-AI Filing Summary

Datadog (Class A) Form 144 filing: A Form 144 notifies the planned sale of 4,626 shares of Class A Common Stock on 06/01/2026, identified as shares from restricted stock units and performance stock units vesting and listed as compensation.

The filing also records a prior sale by David Galloreese of 10,708 shares on 03/02/2026 for $1,183,617.35. Shares outstanding are shown as 330,825,798 as of 06/02/2026.

Insights

Securities Analyst

Routine resale notice tied to equity compensation vesting.

The filing lists 4,626 shares proposed for sale on 06/01/2026 and identifies the source as restricted stock units and performance stock units vesting. The filing is a regulatory notice required for affiliates planning to sell shares.

Past activity includes a sale of 10,708 shares by David Galloreese on 03/02/2026 for $1,183,617.35. Cash‑flow treatment and planned sale method are not detailed in the excerpt; subsequent filings may disclose execution details.

Key Figures

Planned sale: 4,626 shares Prior sale: 10,708 shares Proceeds from prior sale: $1,183,617.35 +1 more

4 metrics

Planned sale 4,626 shares to be sold on <date>06/01/2026</date> from RSU/PSU vesting

Prior sale 10,708 shares sold by David Galloreese on <date>03/02/2026</date>

Proceeds from prior sale $1,183,617.35 consideration received on <date>03/02/2026</date>

Shares outstanding 330,825,798 outstanding as of <date>06/02/2026</date>

Key Terms

Restricted Stock Units, Performance Stock Units, Form 144

3 terms

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 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.

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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
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Services 200 W Civic Center Dr - 4th Floor Sandy UT 84070	4626	1087110	330825798	06/02/2026	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	06/01/2026	Restricted Stock Units and Performance Stock Units vesting	Issuer			4626	06/01/2026	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
David Galloreese 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	03/02/2026	10708	1183617.35

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 DDOG Form 144 report?

It reports a planned sale of 4,626 Class A shares on 06/01/2026, sourced from RSUs and PSUs vesting. It also lists a prior sale of 10,708 shares on 03/02/2026 for $1,183,617.35.

Who sold shares in the prior transaction shown in the filing?

The filing records a prior sale by David Galloreese of 10,708 shares on 03/02/2026 for $1,183,617.35. The entry appears under "Securities Sold During The Past 3 Months."

Are the shares being sold from compensation awards?

Yes. The 4,626 shares listed for potential sale on 06/01/2026 are identified as coming from restricted stock units and performance stock units vesting, and are labeled as compensation.

How many Datadog shares are outstanding according to the excerpt?

The excerpt shows 330,825,798 shares outstanding with an associated date of 06/02/2026. This figure is presented as an issuer data point in the filing excerpt.