Form 144: 20,000 Class A shares proposed for sale

Morgan Stanley Smith Barney LLC submitted a Form 144 notice to sell 20,000 Class A Common shares of DDOG.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice to sell 20,000 Class A Common shares of DDOG. The filing lists an aggregate amount of $4,684,800.00 and references prior 10b5-1 sales on multiple dates with per-sale proceeds shown.

The notice lists prior 10b5-1 dispositions including 05/11/2026 (20,000 shares, $4,002,638) and several sales on 05/07/2026 (38,893–38,896 shares, proceeds shown). Shares outstanding are shown as 330,825,798 as of 06/12/2026.

Insights

Securities Compliance Expert

Form 144 filed for a proposed sale of 20,000 Class A shares under disclosed 10b5-1 activity.

The filing records a broker-dealer notice that 20,000 Class A Common shares are to be sold, with an aggregate figure of $4,684,800.00 and an as of outstanding share count of 330,825,798 as of 06/12/2026. The record also itemizes prior 10b5-1 sales with transaction dates and gross proceeds.

Timing and specific cash-flow recipients align with standard broker-handled dispositions; the excerpt shows multiple executed 10b5-1 sales on 04/2026–05/2026. Subsequent filings would clarify final sale settlement and any issuer-related restrictions.

Key Figures

Shares in Form 144: 20,000 shares Aggregate amount shown: $4,684,800.00 Shares outstanding: 330,825,798 shares +2 more

5 metrics

Shares in Form 144 20,000 shares Class A Common; proposed sale listed on form

Aggregate amount shown $4,684,800.00 Amount associated with the 20,000-share entry

Shares outstanding 330,825,798 shares as of 06/12/2026

Prior 10b5-1 sale (example) 20,000 shares / $4,002,638.00 Sale on 05/11/2026 shown in filing

Prior 10b5-1 sales (05/07/2026) 38,893–38,896 shares / $7,444,057.97 approx. Multiple trusts sold shares on 05/07/2026 with proceeds shown

Key Terms

10b5-1 sales, Form 144, Class A Common

3 terms

10b5-1 sales regulatory

"10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 05/11/2026 20,000 4002638.00"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Form 144 regulatory

"Filer Information | Issuer Information | Securities 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.

Class A Common market

"Class A Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

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

What does DDOG Form 144 filed by Morgan Stanley mean?

It is a broker-dealer notice of a proposed sale of 20,000 Class A Common shares. The filing lists an aggregate amount of $4,684,800.00 and prior 10b5-1 sales with dates and proceeds.

How many shares and what aggregate value are shown in the DDOG Form 144?

The notice shows 20,000 Class A Common shares and an aggregate figure of $4,684,800.00. The filing also shows shares outstanding of 330,825,798 as of 06/12/2026.

Does the filing show prior sales related to this notice for DDOG?

Yes; the filing itemizes multiple prior 10b5-1 sales with dates and proceeds, including 05/11/2026 (20,000 shares, $4,002,638) and several entries on 05/07/2026 with 38,893–38,896 shares.

Who is listed as the broker or dealer handling the sale in the DDOG Form 144?

The filing lists Morgan Stanley Smith Barney LLC Executive Financial Services at the address shown, indicating the broker-dealer handling the proposed sale of the Class A Common shares.

Are the proceeds recipients or issuer proceeds specified in the filing?

The filing shows gross proceeds per sale (e.g., $4,002,638) for listed 10b5-1 transactions. The document does not state uses of proceeds or attribute them to issuer receipts in the provided excerpt.

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

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Accepted by SEC EDGAR 06/12/2026 - 04:43 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	0001540517
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	AGARWAL 2018 FAMILY TRUST
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	20000	4684800.00	330825798	06/12/2026	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	04/07/2021	Previously Exercised Stock Options	Issuer			20000	04/07/2021	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
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	05/11/2026	20000	4002638.00
10b5-1 Sales for A-J-M 2025 NON-EXEMPT TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	05/07/2026	38893	7444057.97
10b5-1 Sales for A-J-K 2025 NON-EXEMPT TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	05/07/2026	38893	7444057.97
10b5-1 Sales for A-J-I 2025 NON-EXEMPT TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	05/07/2026	38896	7444632.17
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	05/04/2026	20000	2894938.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	04/27/2026	20000	2629398.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	04/20/2026	20000	2519524.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	04/15/2026	20000	2400000.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	04/08/2026	20000	2445600.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	04/01/2026	20000	2410600.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	03/23/2026	20000	2547238.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	03/16/2026	20000	2534672.00

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the previous exercise of stock options during the period of 04/07/2021 through 07/14/2021. Securities to be sold, acquired through RSU/PSU or upon option exercise, were registered on Form S-8.
Date of Notice	06/12/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2026
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/ Ellen Jan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)