Datadog director plans $1.18M stock sale

Datadog, Inc. director Julie Richardson has filed a notice under Rule 144 to sell 5,625 shares of Datadog Class A common stock.

Rhea-AI Filing Summary

Datadog, Inc. director Julie Richardson has filed a notice under Rule 144 to sell 5,625 shares of Datadog Class A common stock. The shares are to be sold through Morgan Stanley Smith Barney LLC and have an indicated aggregate market value of $1,176,918.75.

The securities are to be sold on September 3, 2026 and are described as being acquired through exercise of stock options, and in the remarks as securities acquired through RSU/PSU or option exercise that were registered on Form S-8. The notice is dated June 4, 2026.

Key Figures

Shares to be sold: 5,625 shares Aggregate market value: $1,176,918.75 Proposed sale date: September 3, 2026 +3 more

6 metrics

Shares to be sold 5,625 shares Datadog Class A common stock covered by the Rule 144 notice

Aggregate market value $1,176,918.75 Indicated market value of the 5,625 shares to be sold

Proposed sale date September 3, 2026 Date listed for the Rule 144 sale of Datadog shares

Date of notice June 4, 2026 Date shown as the notice date on the Rule 144 form

Security class Class A Common Stock Type of Datadog security to be sold under Rule 144

Broker Morgan Stanley Smith Barney LLC Broker listed to execute the sale of Datadog shares

Key Terms

Rule 144, Form S-8, RSU/PSU, Exercise of Stock Options

4 terms

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.

Form S-8 regulatory

"were registered on Form S-8"

A Form S-8 is a U.S. Securities and Exchange Commission registration that lets a public company set aside shares for employee benefit plans and stock-based compensation. Think of it as opening a dedicated account that authorizes the company to issue or reserve stock for workers and directors; it matters to investors because it enables share dilution when those awards are granted or exercised and signals how management is compensated and incentivized.

RSU/PSU financial

"Securities to be sold, acquired through RSU/PSU or upon option exercise"

Exercise of Stock Options financial

"Exercise of Stock Options | Issuer"

FAQ

What does the Form 144 filing disclose for Datadog, Inc. (DDOG)?

It discloses that director Julie Richardson intends to sell 5,625 shares of Datadog Class A common stock under Rule 144, with an indicated aggregate market value of $1,176,918.75, through Morgan Stanley Smith Barney LLC on September 3, 2026.

How many Datadog (DDOG) shares are covered by this Rule 144 notice?

The notice covers 5,625 shares of Datadog, Inc. Class A common stock. These shares are to be sold for an indicated aggregate market value of $1,176,918.75, according to the Rule 144 filing for director Julie Richardson.

When are the Datadog (DDOG) shares expected to be sold under this Form 144?

The shares are expected to be sold on September 3, 2026. The Rule 144 notice, dated June 4, 2026, lists this as the proposed sale date for the 5,625 Datadog Class A common shares.

How were the Datadog (DDOG) shares to be sold under Rule 144 acquired?

The filing states the Datadog Class A shares are to be sold upon exercise of stock options. In the remarks, the securities are described as acquired through RSU/PSU or upon option exercise and were registered on Form S-8.

Which broker is handling the planned Datadog (DDOG) share sale in this Form 144?

The planned sale of Datadog Class A common stock is listed as being handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, according to the Rule 144 disclosure.

Who is the insider filing the Rule 144 notice related to Datadog (DDOG)?

The Rule 144 notice is filed for Julie Richardson, identified as a director of Datadog, Inc. She has signed the notice covering the planned sale of 5,625 shares of Class A common stock.

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

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Available on EDGAR 09/03/2026 - 04:57 PM Accepted by SEC EDGAR 09/03/2026 - 04:34 PM 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	0001466857
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 8th Avenue, 45th Floor New York NEW YORK 10018
Phone	8663294466
Name of Person for Whose Account the Securities are To Be Sold	JULIE RICHARDSON
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	Director

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5625	1176918.75	334904614	09/03/2026	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	09/03/2026	Exercise of Stock Options	Issuer			5625	09/03/2026	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

Nothing to Report

144: Remarks and Signature

Remarks	Securities to be sold, acquired through RSU/PSU or upon option exercise, were registered on Form S-8
Date of Notice	09/03/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/04/2026
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	/s/ Julie Richardson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)