DataDog (DDOG) Form 144 lists 18,000-share sale; 120,000 sold previously

Rhea-AI Filing Summary

DataDog Inc. notice of proposed sale of 18,000 shares of Common Stock by a broker-dealer on 06/03/2026. The filing also discloses that 120,000 shares were sold during the prior three months, recorded on 06/03/2026.

The transaction is identified as originating from a stock option and executed in cash through Merrill Lynch Pierce Fenner & Smith. Dollar values are shown in the filing for the listed lots.

Insights

Equity Capital Markets Analyst

Form 144 lists an intended brokered sale of 18,000 shares and prior sales of 120,000 shares.

The notice lists 18,000 shares as the securities to be sold on 06/03/2026 through Merrill Lynch and records 120,000 shares sold during the past three months. The filing references the holdings as arising from a stock option and shows cash consideration.

Cash‑flow treatment and any limits on resale are as stated in the excerpt; timing and further disposition details beyond the stated date are not included in the provided excerpt.

Key Figures

Offered shares: 18,000 shares Prior three-month sales: 120,000 shares Dollar value shown (prior sales): $29,853,405.39

3 metrics

Offered shares 18,000 shares Securities To Be Sold on 06/03/2026

Prior three-month sales 120,000 shares Securities Sold During The Past 3 Months (06/03/2026)

Dollar value shown (prior sales) $29,853,405.39 Value associated with the 120,000 shares entry dated 06/03/2026

Key Terms

Stock Option, Common, Cash

3 terms

Stock Option financial

"Stock Option | DataDog Inc | 18000 | 06/03/2026 | Cash"

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

Common financial

"Common | Merrill Lynch Pierce Fenner & Smith | 18000 | 06/03/2026"

Cash financial

"18000 | 06/03/2026 | Cash"

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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
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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
Common	Merrill Lynch Pierce Fenner & Smith 100 Federal St. 12th Fl Boston MA 02127	18000	4478037.06	330825798	06/03/2026	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	11/16/2015	Stock Option	DataDog Inc			18000	06/03/2026	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
Dev Ittycheria c/o DataDog Inc 620 8th Ave 45th Fl New York NY 10018	DataDog Inc	06/03/2026	120000	29853405.39

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the DDOG Form 144 say was offered for sale?

The Form 144 lists 18,000 shares of Common Stock offered for sale through a broker on 06/03/2026. The filing identifies the sale as linked to a stock option and executed in cash via Merrill Lynch.

How many DDOG shares were sold in the prior three months?

The filing records 120,000 shares sold during the past three months, dated 06/03/2026. A dollar value of $29,853,405.39 is shown alongside that sales line in the excerpt.

Who handled the sale listed in the DDOG Form 144?

The broker-dealer listed is Merrill Lynch Pierce Fenner & Smith at the Boston address shown. The sale method is recorded as cash on 06/03/2026 in the excerpt.

What security type and origin are listed in the DDOG filing?

The securities are described as Common stock arising from a Stock Option grant dated 11/16/2015 in the excerpt. The filing ties the disposition to cash proceeds.