Trust reports 20,000‑share DDOG 10b5-1 sales

Datadog Inc. (Class A) filing reports proposed and recent Rule 144/10b5-1 sales by the AGARWAL 2018 FAMILY TRUST.

Rhea-AI Filing Summary

Datadog Inc. (Class A) filing reports proposed and recent Rule 144/10b5-1 sales by the AGARWAL 2018 FAMILY TRUST. The excerpt lists multiple 10b5-1 disposals of 20,000 shares each on dates including 03/09/2026, 04/01/2026, and 04/27/2026, with proceeds shown (for example, $2,499,116.00 on 03/09/2026 and $2,629,398.00 on 04/27/2026). The broker shown is Morgan Stanley Smith Barney LLC.

Key Figures

Sale size per transaction: 20,000 shares Proceeds on 04/27/2026: $2,629,398.00 Proceeds on 03/09/2026: $2,496,116.00 +1 more

4 metrics

Sale size per transaction 20,000 shares each 10b5-1 sale listed

Proceeds on 04/27/2026 $2,629,398.00 10b5-1 sale of 20,000 shares on 04/27/2026

Proceeds on 03/09/2026 $2,496,116.00 10b5-1 sale of 20,000 shares on 03/09/2026

Proceeds on 04/01/2026 $2,410,600.00 10b5-1 sale of 20,000 shares on 04/01/2026

Key Terms

10b5-1, Class A Common, Previously Exercised Options

3 terms

10b5-1 regulatory

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

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Class A Common market

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

Previously Exercised Options financial

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

FAQ

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

What does the DDOG Form 144 filing disclose?

It discloses multiple proposed and completed Rule 144/10b5-1 sales of Class A Common stock by AGARWAL 2018 FAMILY TRUST. The filing shows repeated sales of 20,000 shares on specific dates with gross proceeds listed for each transaction.

How many shares were sold in each reported 10b5-1 transaction in the DDOG excerpt?

Each reported 10b5-1 transaction in the excerpt is for 20,000 shares. Dates shown include 03/09/2026, 04/01/2026, 04/08/2026, and others with proceeds listed.

What proceeds are shown for the April 27, 2026, sale in the filing?

The April 27, 2026 entry lists a sale of 20,000 shares with proceeds of $2,629,398.00. The excerpt presents per‑trade gross proceeds alongside each 20,000‑share sale.

Who is the broker or intermediary shown on the DDOG filing?

The broker listed in the excerpt is Morgan Stanley Smith Barney LLC at 1 New York Plaza, 8th Floor, New York, NY. The filing associates that broker with the securities to be sold.

Were the sales executed under a trading plan?

Yes. The excerpt labels the disposals as 10b5-1 Sales for AGARWAL 2018 FAMILY TRUST, indicating the transactions occurred pursuant to a prearranged trading plan structure referenced in the entries.

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

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Accepted by SEC EDGAR 05/04/2026 - 04:31 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	2810600.00	328274648	05/04/2026	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	N/A

* 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	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
10b5-1 Sales for AGARWAL 2018 FAMILY TRUST 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	03/09/2026	20000	2496116.00

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	05/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/08/2025
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)