[144] Datadog, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice for Datadog, Inc. (DDOG) shows a proposed sale of 3,958 Class A Common shares to be executed through Morgan Stanley Smith Barney on NASDAQ with an aggregate market value of $521,585.24. The shares were acquired as RSU/PSU on 09/01/2025 and payment/settlement is recorded on 09/01/2025. The filing lists total shares outstanding of 323,270,704. Recent insider sales by the same person, Kerry Acocella, include 5,142 shares sold on 09/02/2025 for $688,243.85 and a 10b5-1 plan sale of 12,971 shares on 08/29/2025 for $1,815,421.16. The filer certifies no undisclosed material adverse information and references reliance on Rule 10b5-1 where applicable.

Positive

• Disclosure compliance: Form 144 filed and broker/exchange identified, fulfilling regulatory notice requirements
• Use of 10b5-1: Prior sales reference a 10b5-1 plan, indicating pre-established trading instructions that support good governance

Negative

• Insider sales occurred: Recent sales total 18,113 shares over a short period, which could be perceived negatively by some investors
• Plan adoption date not shown: The filing text does not display the date of 10b5-1 plan adoption or instruction, limiting assessment of timing

Insights

Securities Analyst

TL;DR: Routine insider sales under 10b5-1 and RSU vesting; transaction sizes appear modest relative to outstanding shares.

The filing documents a proposed sale of 3,958 shares and discloses recent sales totaling 18,113 shares by the same individual over the past week. The broker and exchange are identified and the filing states the shares were acquired via RSU/PSU on 09/01/2025. For investors, these are disclosed insider transactions consistent with compensation vesting and an established trading plan (10b5-1), which typically reduces informational asymmetry. The amounts disclosed do not indicate a controlling divestiture given the issuer's 323.27 million shares outstanding.

Corporate Governance Expert

TL;DR: Disclosure complies with Rule 144 and references 10b5-1; confirms insider attestation of no undisclosed material information.

The notice includes the required attestations and indicates possible reliance on a written 10b5-1 trading plan or instruction dates for prior sales. That procedural compliance is important for governance and insider trading risk management. The filing does not provide dates for plan adoption in the visible text, so reviewers must confirm plan timing elsewhere if evaluating affirmative defenses under insider trading rules.

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
Class A Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3958	521585.24	323270704	09/05/2025	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	09/01/2025	RSU/PSU	Issuer			3958	09/01/2025	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
KERRY ACOCELLA 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	09/02/2025	5142	688243.85
10b5-1 Sales for KERRY ACOCELLA 620 8th Avenue, 45th Floor New York NY 10018	Class A Common	08/29/2025	12971	1815421.16

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 for DDOG report?

The Form 144 reports a proposed sale of 3,958 Class A Common shares for Datadog (DDOG) via Morgan Stanley Smith Barney on NASDAQ with an aggregate market value of $521,585.24.

Who is the seller named in the filing for DDOG?

The filing identifies Kerry Acocella as the person associated with the recent sales and notices of proposed sale.

Were there recent insider sales for DDOG before this proposed sale?

Yes. The filing discloses sales of 5,142 shares on 09/02/2025 for $688,243.85 and a 10b5-1 sale of 12,971 shares on 08/29/2025 for $1,815,421.16.

How many DDOG shares are outstanding according to the filing?

The filing lists 323,270,704 shares outstanding.

Were the shares being sold acquired recently and how?

The 3,958 shares proposed for sale were acquired as RSU/PSU on 09/01/2025, with payment/settlement recorded on the same date.