Morgan Stanley to sell 53,918 DDOG Class A shares (Form 144)

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC filed a Form 144 notifying a proposed sale of 53,918 shares of Class A Common Stock tied to restricted stock units and performance stock units that vested on 03/01/2026.

The filing lists recent open‑market sales by Alexis Le‑Quoc, including 21,612 shares sold on 02/23/2026 and 43,106 shares sold on 02/11/2026. The transactions are reported under compensation‑related vesting and routine resale mechanics.

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

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
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Services 200 W Civic Center Dr - 4th Floor Sandy UT 84070	53918	6146652	328274648	03/02/2026	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 Stock	03/01/2026	Restricted Stock Units and Performance Stock Units vesting	Issuer			53918	03/01/2026	Compensation

* 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
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	02/23/2026	21612	2266660.08
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	02/11/2026	43106	5465452.85
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	01/28/2026	32418	4570510.08
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	01/05/2026	43106	5773035.7
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	12/29/2025	32418	4468785.64
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	12/08/2025	53912	8305202.9
Alexis Le-Quoc 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	12/02/2025	13765	2183108.35

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 Form 144 for DDOG disclose?

The filing notifies a proposed sale of 53,918 Class A shares tied to RSUs/PSUs that vested on 03/01/2026. It also lists several recent sales by insiders, including multiple transactions by Alexis Le‑Quoc in late 2025 and early 2026.

Who is the filer on the DDOG Form 144?

The filer is Morgan Stanley Smith Barney LLC Executive Services, which reported the proposed resale of vested compensation shares on 03/01/2026. The filing identifies the securities as Class A Common Stock for sale.

How many shares does the Form 144 propose to sell for DDOG?

The Form 144 shows a proposed sale of 53,918 Class A Common Stock shares tied to vesting on 03/01/2026. The notice lists these shares as resulting from restricted and performance stock unit vesting.

Did any insiders recently sell DDOG shares before this Form 144?

Yes. The filing lists multiple recent sales by Alexis Le‑Quoc, including 21,612 shares on 02/23/2026 and 43,106 shares on 02/11/2026, among other transactions in late 2025 and early 2026.

Are proceeds destination or other sale conditions stated in the DDOG Form 144?

The excerpt ties the shares to compensation vesting but does not state proceeds allocation or special sale conditions in the provided text. The filing identifies the transaction type as related to vested RSUs and PSUs.