DDOG trust plans sale of 20,000 Class A shares

DDOG received a notice of proposed resale of Class A Common Stock under a Form 144 filing.

Rhea-AI Filing Summary

DDOG received a notice of proposed resale of Class A Common Stock under a Form 144 filing. A planned sale of 20,000 shares of Class A Common is listed for 08/13/2026, to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services and sourced from previously exercised options for cash. The filing also details recent Rule 10b5-1 sales by the AGARWAL 2018 FAMILY TRUST, including multiple 20,000‑share transactions between June and August 2026, plus a 10,000‑share sale by the Agarwal Jan Family Foundation on 06/16/2026.

Key Figures

Planned shares to be sold: 20,000 shares Aggregate value of planned sale: $4,818,200.00 10b5-1 sale on 08/06/2026: 20,000 shares; $4,696,930.00 +3 more

6 metrics

Planned shares to be sold 20,000 shares Proposed sale of Class A Common Stock on 08/13/2026

Aggregate value of planned sale $4,818,200.00 Planned 20,000‑share sale of Class A Common Stock

10b5-1 sale on 08/06/2026 20,000 shares; $4,696,930.00 AGARWAL 2018 FAMILY TRUST Class A Common sale

10b5-1 sale on 07/30/2026 20,000 shares; $5,336,366.00 AGARWAL 2018 FAMILY TRUST Class A Common sale

Foundation sale on 06/16/2026 10,000 shares; $2,324,900.00 Agarwal Jan Family Foundation Class A Common sale

10b5-1 sale on 06/12/2026 20,000 shares; $4,631,192.00 AGARWAL 2018 FAMILY TRUST Class A Common sale

Key Terms

Form 144, Class A Common, 10b5-1 Sales, previously exercised options, +1 more

5 terms

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.

Class A Common financial

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

10b5-1 Sales regulatory

"10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue"

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.

previously exercised options financial

"Class A Common | 04/07/2021 | Previously Exercised Options"

aggregate market value financial

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

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the DDOG Form 144 filing disclose about upcoming stock sales?

The Form 144 discloses a planned sale of 20,000 shares of DDOG Class A Common Stock on 08/13/2026. The shares will be sold for cash through Morgan Stanley Smith Barney LLC Executive Financial Services and come from previously exercised options.

Who is selling DDOG shares in this Form 144 filing?

The filing relates to sales by the AGARWAL 2018 FAMILY TRUST and the Agarwal Jan Family Foundation. The trust has a scheduled 20,000‑share sale and multiple recent 10b5‑1 sales, while the foundation reported a single 10,000‑share sale.

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

The notice covers a proposed sale of 20,000 shares of DDOG Class A Common Stock. These shares are described as originating from previously exercised options and are expected to be sold for cash on 08/13/2026 through a brokerage firm.

What 10b5-1 transactions in DDOG stock are listed for the AGARWAL 2018 FAMILY TRUST?

The AGARWAL 2018 FAMILY TRUST reports multiple 20,000‑share 10b5‑1 sales of DDOG Class A Common between 06/18/2026 and 08/06/2026. Each entry includes a specific trade date and total transaction value in dollars.

What DDOG sales did the Agarwal Jan Family Foundation report in this period?

The Agarwal Jan Family Foundation reported a single sale of 10,000 shares of DDOG Class A Common Stock on 06/16/2026. The transaction shows a total value of $2,324,900.00 for that date in the filing’s sales history table.

Through which broker will the planned DDOG Form 144 sale be executed?

The planned 20,000‑share sale of DDOG Class A Common is listed with Morgan Stanley Smith Barney LLC Executive Financial Services. The broker’s address is identified as 1 New York Plaza, 8th Floor, New York, NY 10004 in the filing.

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

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Accepted by SEC EDGAR 08/13/2026 - 04:30 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	4818200.00	334904614	08/13/2026	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	04/07/2021	Previously Exercised 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	08/06/2026	20000	4696930.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	07/30/2026	20000	5336366.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	07/23/2026	20000	4897334.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	07/16/2026	20000	5230676.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	07/09/2026	20000	5348252.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	07/02/2026	20000	5224412.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	06/25/2026	20000	4402376.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	06/18/2026	20000	4418366.00
Agarwal Jan Family Foundation 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	06/16/2026	10000	2324900.00
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	06/12/2026	20000	4631192.00

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the previous exercise of 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	08/13/2026
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)