Agarwal trusts report Rule 144 sales of DDOG shares

Agarwal-related trusts and foundations submitted Rule 144 notices proposing sales of Class A Common shares of DDOG.

Rhea-AI Filing Summary

Agarwal-related trusts and foundations submitted Rule 144 notices proposing sales of Class A Common shares of DDOG. The filing lists multiple reported transactions between 03/23/2026 and 06/16/2026

Examples include reported sales of 20,000 shares on 06/12/2026 for $4,631,192 and 10,000 shares on 06/16/2026 for $2,324,900. Several entries are identified as 10b5-1 sales and some shares are noted as previously exercised options.

Insights

Securities Compliance Counsel

TL;DR: Multiple Rule 144 notices list sales by Agarwal-affiliated trusts, many executed under 10b5-1 plans.

The excerpt lists numerous proposed or reported dispositions of Class A Common shares, with transactions dated between 03/23/2026 and 06/16/2026. Several rows are labeled as 10b5-1 Sales, indicating systematic plan-based disposals, and one line references Previously Exercised Options.

Timing and aggregate totals are given per trade only; the filing does not aggregate a single registered amount or state proceeds recipients besides the selling holders. Subsequent filings or broker reports would show settlement details and any Rule 144 eligibility confirmations.

Key Figures

Example sale: 20,000 shares Example proceeds: $4,631,192 Example sale: 10,000 shares +3 more

6 metrics

Example sale 20,000 shares sale dated <date>06/12/2026</date>

Example proceeds $4,631,192 proceeds for 20,000 shares on <date>06/12/2026</date>

Example sale 10,000 shares sale dated <date>06/16/2026</date>

Example proceeds $2,324,900 proceeds for 10,000 shares on <date>06/16/2026</date>

Earliest trade shown 03/23/2026 date of a reported sale in the excerpt

Previously exercised options 20,000 shares listed as previously exercised options with cash on <date>04/07/2021</date>

Key Terms

10b5-1, Rule 144, Previously Exercised Options

3 terms

10b5-1 regulatory

"Rows labeled "10b5-1 Sales" for multiple trusts (example fragment)"

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.

Rule 144 regulatory

"Form type and context: notices of proposed sale under Rule 144 (implicit in filing type)"

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.

Previously Exercised Options financial

"Line: "Previously Exercised Options | Issuer | ... 20000 | 04/07/2021 | Cash""

FAQ

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

What does the DDOG Form 144 filing report?

It reports proposed or effected sales of Class A Common shares by Agarwal-affiliated entities. The excerpt lists multiple trades dated 03/23/2026 through 06/16/2026, some executed under 10b5-1 plans, with per-trade share counts and proceeds.

How many shares and dollars are shown in example sales on the filing for DDOG?

Examples include a 20,000-share sale on 06/12/2026 for $4,631,192 and a 10,000-share sale on 06/16/2026 for $2,324,900. Each trade row lists shares, date, and gross proceeds.

Are the transactions in the DDOG excerpt part of a trading plan?

Yes. Multiple entries are labeled as 10b5-1 Sales, indicating trades executed pursuant to pre-established trading plans. The filing text identifies several trades specifically as 10b5-1 sales.

Do the entries show proceeds going to the issuer or selling holders for DDOG?

Proceeds are attributed to the selling holders. The rows list selling parties (e.g., Agarwal Jan Family Foundation) and per-trade proceeds; there is no statement that the issuer receives proceeds in the provided excerpt.

Does the filing state total shares outstanding or an aggregate registered amount for DDOG?

No aggregate outstanding or registered total is provided in the excerpt. The content lists individual trade quantities and proceeds without an aggregate or outstanding‑share statement.

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

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Accepted by SEC EDGAR 06/18/2026 - 04:26 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	4532600.00	330825798	06/18/2026	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
Agarwal Jan Family Foundation 620 8th Avenue, 45th Floor New York NY 10018	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
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

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	06/18/2026
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)