DDOG insider notice: 10b5-1 plan sales and Form 144 disclosure

Rhea-AI Filing Summary

Form 144 notice filed for Datadog, Inc. (DDOG) reporting a proposed sale of 11,195 shares of Common stock through Morgan Stanley Smith Barney with an aggregate market value of $1,548,828.25, with an approximate sale date of 09/23/2025 on NASDAQ. The shares were originally acquired as Founders Shares on 07/08/2010. The filing also discloses multiple recent sales attributed to a 10b5-1 sales plan for OLIVIER POMEL and direct sales by OLIVIER POMEL dated from 06/25/2025 through 09/08/2025, including several planned 10b5-1 transactions and a sale of 15,357 Class A Common on 09/02/2025. The filer certifies no undisclosed material adverse information and notes reliance on Rule 10b5-1 where applicable.

Positive

• Proposed sale disclosed with broker and market details (Morgan Stanley Smith Barney, NASDAQ) providing transaction transparency
• Many sales executed under a 10b5-1 plan, indicating preplanned trading rather than opportunistic ad-hoc sales
• Securities were long-held founders' shares (acquired 07/08/2010), showing these are not recent insider grants

Negative

• Significant insider liquidity activity with multiple sales reported between 06/25/2025 and 09/08/2025, including large gross proceeds amounts
• Proposed sale valued at $1,548,828.25 adds to recent dispositions by the same person, which may be perceived negatively by some investors

Insights

Securities Analyst

TL;DR: Multiple insider sales disclosed, including a new Form 144 for 11,195 common shares and several 10b5-1 plan executions.

The filing presents a proposed public sale under Rule 144 of 11,195 common shares valued at $1,548,828.25 to be executed via Morgan Stanley Smith Barney on NASDAQ. The securities were acquired as founders' shares on 07/08/2010, indicating they are long-held equity. The filing lists numerous recent dispositions attributed to a 10b5-1 sales plan and a direct sale by OLIVIER POMEL across June–September 2025, with individual gross proceeds reported for each trade. For investors, the key detail is the pattern of systematic sales via a 10b5-1 plan and the formal certification that no undisclosed material adverse information exists as of the plan adoption or instruction date.

Corporate Governance Expert

TL;DR: Disclosure aligns with Rule 144 and 10b5-1 practices; documentation shows planned and recent insider liquidity events.

The notice includes the required representations under Form 144, including the signer’s statement about lacking undisclosed material adverse information and references to dates of plan adoption/instructions for Rule 10b5-1 reliance. The presence of multiple 10b5-1 plan trades in the recent three-month window is consistent with prearranged trading plans rather than ad hoc sales. The filing properly identifies the broker, proposed sale date, and provenance of the shares (founders’ shares). From a governance perspective, the document supplies the standard disclosures investors expect for insider sales.

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
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	11195	1548828.25	323270704	09/23/2025	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	07/08/2010	Founders Shares	Issuer			11195	07/08/2010	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 Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	09/08/2025	21728	2950308.23
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	09/08/2025	11195	1518540.18
OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	09/02/2025	15357	2055491.45
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	08/27/2025	11195	1455350.00
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	08/11/2025	21728	2827234.32
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	08/11/2025	11195	1465101.96
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	07/28/2025	11195	1688462.37
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	07/08/2025	21728	3173448.28
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	07/08/2025	11196	1635065.71
10b5-1 Sales Plan for OLIVIER POMEL 620 8th Avenue, 45th Floor New York NY 10018	Common	06/25/2025	100754	13286953.90

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 filed for DDOG report?

The filing reports a proposed Rule 144 sale of 11,195 common shares valued at $1,548,828.25 to be effected via Morgan Stanley Smith Barney on NASDAQ on 09/23/2025.

Who is selling the shares listed in the Form 144?

The filing identifies the party as OLIVIER POMEL (including 10b5-1 sales plans attributed to him) for the sales disclosed in the document.

Were the shares acquired recently or long ago?

The shares proposed for sale were acquired as Founders Shares on 07/08/2010.

Does the filing indicate preplanned trading under Rule 10b5-1?

Yes. Multiple entries are explicitly labeled as '10b5-1 Sales Plan for OLIVIER POMEL', indicating reliance on pre-existing trading plans for several transactions.

Are there recent sales by the same person disclosed in the filing?

Yes. The filing lists multiple sales from 06/25/2025 through 09/08/2025, including both 10b5-1 plan trades and a direct sale of Class A Common on 09/02/2025.