Datadog officer plans $3.1M stock sale

Datadog, Inc. officer Adam Blitzer has filed a notice of proposed sale of 13,400 shares of Class A Common Stock of Datadog under Rule 144.

Rhea-AI Filing Summary

Datadog, Inc. officer Adam Blitzer has filed a notice of proposed sale of 13,400 shares of Class A Common Stock of Datadog under Rule 144. The shares, acquired through Restricted Stock Units and Performance Stock Units vesting on September 1, 2026 as compensation from the issuer, are expected to be sold through Morgan Stanley Smith Barney LLC on NASDAQ around September 2, 2026.

The filing also lists recent sales by Adam Blitzer over the prior three months, reflecting additional Class A Common Stock transactions.

Key Figures

Shares proposed to be sold: 13,400 shares Aggregate market value of proposed sale: $3,149,000 Shares outstanding: 334,904,614 shares +4 more

7 metrics

Shares proposed to be sold 13,400 shares Class A Common Stock under Rule 144, expected around September 2, 2026

Aggregate market value of proposed sale $3,149,000 Value for the 13,400 shares of Class A Common Stock in the Form 144

Shares outstanding 334,904,614 shares Datadog Class A Common Stock referenced in connection with the Rule 144 notice

Shares sold on June 3, 2026 12,202 shares Class A Common Stock sold by Adam Blitzer for $3,041,812.18

Proceeds on June 3, 2026 sale $3,041,812.18 Sale of 12,202 shares of Class A Common Stock

Shares sold on June 2, 2026 13,642 shares Class A Common Stock sold by Adam Blitzer for $3,644,520.32

Proceeds on June 2, 2026 sale $3,644,520.32 Sale of 13,642 shares of Class A Common Stock

Key Terms

Rule 144, Restricted Stock Units, Performance Stock Units, Form S-8

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

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.

Restricted Stock Units financial

"Restricted Stock Units and Performance Stock Units vesting"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Performance Stock Units financial

"Restricted Stock Units and Performance Stock Units vesting"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Form S-8 regulatory

"Securities to be sold were registered on Form S-8"

A Form S-8 is a U.S. Securities and Exchange Commission registration that lets a public company set aside shares for employee benefit plans and stock-based compensation. Think of it as opening a dedicated account that authorizes the company to issue or reserve stock for workers and directors; it matters to investors because it enables share dilution when those awards are granted or exercised and signals how management is compensated and incentivized.

FAQ

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

What does the Form 144 filing report for Datadog, Inc. (DDOG)?

The filing reports that officer Adam Blitzer has given notice of a proposed sale of 13,400 shares of Datadog Class A Common Stock under Rule 144, with the shares expected to be sold on NASDAQ through Morgan Stanley Smith Barney LLC around September 2, 2026.

How many Datadog (DDOG) shares is Adam Blitzer planning to sell?

Adam Blitzer is planning to sell 13,400 shares of Datadog Class A Common Stock. The notice lists an aggregate market value of $3,149,000 for these shares at the time of the Form 144 preparation.

How were the Datadog (DDOG) shares in this Form 144 acquired?

The 13,400 shares covered by the Form 144 were acquired from Datadog, Inc. through the vesting of Restricted Stock Units and Performance Stock Units on September 1, 2026 as part of compensation.

What recent Datadog (DDOG) stock sales by Adam Blitzer are disclosed?

The notice discloses two recent sales: 12,202 shares of Class A Common Stock on June 3, 2026 for $3,041,812.18, and 13,642 shares on June 2, 2026 for $3,644,520.32.

How many Datadog (DDOG) shares are outstanding as referenced in this Form 144?

The Form 144 references 334,904,614 shares of Datadog Class A Common Stock outstanding in connection with the proposed Rule 144 sale of 13,400 shares; this is a baseline figure and not the amount being sold.

Were the Datadog (DDOG) shares in this Form 144 registered on another form?

Yes. The remarks state that the securities to be sold were registered on Form S-8, indicating they were issued under an employee benefit or compensation plan previously registered with the SEC.

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

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Available on EDGAR 09/02/2026 - 04:34 PM EDT Accepted by SEC EDGAR 09/02/2026 - 04:33 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	0001861590
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	866-329-4466
Name of Person for Whose Account the Securities are To Be Sold	Adam Blitzer
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	Officer

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	13400	3149000	334904614	09/02/2026	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	09/01/2026	Restricted Stock Units and Performance Stock Units vesting	Issuer			13400	09/01/2026	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
Adam Blitzer 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/03/2026	12202	3041812.18
Adam Blitzer 620 8th Avenue, 45th floor New York NY 10018	Class A Common Stock	06/02/2026	13642	3644520.32

144: Remarks and Signature

Remarks	Securities to be sold were registered on Form S-8
Date of Notice	09/02/2026
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/ Adam Blitzer
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)