Agarwal Family Trust sells 20,000 DDOG shares repeatedly

Filer reported repeated planned sales of Class A Common stock by the Agarwal 2018 Family Trust under a 10b5-1 plan.

Rhea-AI Filing Summary

Filer reported repeated planned sales of Class A Common stock by the Agarwal 2018 Family Trust under a 10b5-1 plan. The excerpt lists a series of 20,000-share sales on multiple dates from 03/09/2026 through 05/04/2026, each showing gross proceeds in dollars.

Insights

Securities Compliance Analyst

Routine trust sales executed under a 10b5-1 plan; administrative disclosure.

The filing lists multiple planned sales by Agarwal 2018 Family Trust of 20,000 Class A Common shares on specified dates with dollar proceeds. These are reported pursuant to Rule 144-style disclosure and the entries cite 10b5-1 sales.

Regulatory risk appears limited given the documented trading plan; subsequent filings will confirm remaining holdings and any continuing schedule.

Key Figures

Sale size per transaction: 20,000 shares Proceeds 05/04/2026: $2,894,938.00 Proceeds 04/27/2026: $2,629,398.00 +5 more

8 metrics

Sale size per transaction 20,000 shares each listed sale between 03/09/2026 and 05/04/2026

Proceeds 05/04/2026 $2,894,938.00 proceeds reported for 20,000-share sale on 05/04/2026

Proceeds 04/27/2026 $2,629,398.00 proceeds reported for 20,000-share sale on 04/27/2026

Proceeds 04/20/2026 $2,519,524.00 proceeds reported for 20,000-share sale on 04/20/2026

Proceeds 04/15/2026 $2,400,000.00 proceeds reported for 20,000-share sale on 04/15/2026

Proceeds 04/08/2026 $2,445,600.00 proceeds reported for 20,000-share sale on 04/08/2026

Proceeds 04/01/2026 $2,410,600.00 proceeds reported for 20,000-share sale on 04/01/2026

Proceeds 03/23/2026 $2,547,238.00 proceeds reported for 20,000-share sale on 03/23/2026

Key Terms

10b5-1, Class A Common, Gift, Family Trust

4 terms

10b5-1 regulatory

"10b5-1 Sales for AGARWAL 2018 FAMILY TRUST"

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 | 09/12/2025 | Gift | Agarwal 2018 Family Trust"

Gift legal

"Class A Common | 09/12/2025 | Gift | Agarwal 2018 Family Trust"

Family Trust other

"AGARWAL 2018 FAMILY TRUST 620 8th Avenue"

FAQ

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

What does the DDOG Form 144 excerpt show about the Agarwal 2018 Family Trust?

It shows multiple planned sales of Class A Common shares under a 10b5-1 plan. The excerpt lists repeated 20,000-share sales on dates between 03/09/2026 and 05/04/2026, each with reported dollar proceeds.

How many shares were sold in each transaction reported in the filing?

Each reported transaction lists 20,000 shares. The entries show several separate sales of 20,000 Class A Common shares on different dates, executed under 10b5-1 instructions.

Were the sales disclosed as part of a 10b5-1 trading plan in the filing?

Yes — the excerpt specifically labels the transactions as 10b5-1 sales. Multiple lines read “10b5-1 Sales for AGARWAL 2018 FAMILY TRUST,” indicating prearranged plan execution.

Does the excerpt state who received the sale proceeds?

The excerpt shows dollar proceeds per sale but does not specify the recipient party beyond the selling trust. Each sale line pairs 20,000 shares with a dollar amount attributed to that sale.

What dates do the reported sales cover in the excerpt?

The reported sales span from 03/09/2026 to 05/04/2026. Individual sale dates listed include 03/09/2026, 03/16/2026, 03/23/2026, 04/01/2026, 04/08/2026, 04/15/2026, 04/20/2026, 04/27/2026, and 05/04/2026.

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

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Accepted by SEC EDGAR 05/07/2026 - 04:25 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	A-J-K 2025 NON-EXEMPT 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	Affiliate

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	38893	5589313.03	328274648	05/07/2026	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	09/12/2025	Gift	Agarwal 2018 Family Trust		04/07/2021	38893		NA

* 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	05/04/2026	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
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 shares to be sold pursuant to this Form are held by trusts set up for the benefit of the family of Amit Agarwal, a member of the board of directors of Datadog, Inc. The disposition of these shares is controlled by an independent trustee. The shares were acquired by the donor during the period 04/07/2021 through 07/14/2021.
Date of Notice	05/07/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/15/2025
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/ Brian Cyr
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)