Datadog CRO sells 1,914 shares under 10b5-1 plan

Datadog, Inc. Chief Revenue Officer Sean Michael Walters sold shares in the company.

Rhea-AI Filing Summary

Datadog, Inc. Chief Revenue Officer Sean Michael Walters sold shares in the company. On May 5, 2026, he completed an open-market sale of 1,914 shares of Datadog Class A Common Stock at $150 per share, according to a Form 4 filing.

The transaction was carried out under a pre-arranged Rule 10b5-1 trading plan dated December 12, 2025, indicating it was scheduled in advance. After this sale, Walters directly holds 291,267 shares of Datadog Class A Common Stock, and an additional 8 shares are reported as indirect ownership held by his son.

Insider Trade Summary 10b5-1

Net Seller: 1,914 shares

Net Sell 2 txns

Insider Walters Sean Michael

Role Chief Revenue Officer

Sold 1,914 shs ($287K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,914	$150.00	$287K
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 291,267 shares (Direct); Class A Common Stock — 8 shares (Indirect, By Son)

Footnotes (1)

1. F1. Shares sold pursuant to a 10b5-1 plan dated December 12, 2025.

Key Figures

Shares sold: 1,914 shares Sale price per share: $150.00 per share Direct holdings after transaction: 291,267 shares +2 more

5 metrics

Shares sold 1,914 shares Open-market sale of Class A Common Stock on May 5, 2026

Sale price per share $150.00 per share Price for Datadog Class A Common Stock in the reported sale

Direct holdings after transaction 291,267 shares Direct Datadog Class A Common Stock held by Walters after the sale

Indirect family holdings 8 shares Indirect ownership reported as held by his son

Net shares sold 1,914 shares Net sell direction from transaction summary

Key Terms

Rule 10b5-1, open-market sale, indirect ownership, Class A Common Stock

4 terms

Rule 10b5-1 financial

"Shares sold pursuant to a 10b5-1 plan dated December 12, 2025."

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

open-market sale financial

"transaction_action: open-market sale of Class A Common Stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

indirect ownership financial

"ownership_type: indirect, nature_of_ownership: By Son"

Class A Common Stock financial

"security_title: Class A Common Stock for Datadog, Inc."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

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

What insider transaction did Datadog (DDOG) report for Sean Michael Walters?

Datadog reported that Chief Revenue Officer Sean Michael Walters sold 1,914 shares of Class A Common Stock. The sale was executed at $150 per share, and was disclosed in a Form 4 insider trading report filed with regulators.

At what price did the Datadog (DDOG) Chief Revenue Officer sell shares?

Sean Michael Walters sold 1,914 Datadog Class A Common Stock shares at $150 per share. This open-market sale was recorded on May 5, 2026, and was executed under a pre-arranged Rule 10b5-1 trading plan.

How many Datadog (DDOG) shares does Sean Michael Walters hold after the sale?

After the reported transaction, Sean Michael Walters directly holds 291,267 shares of Datadog Class A Common Stock. The filing also shows an additional 8 shares reported as indirect ownership held by his son, reflecting a small family-related position.

Was the Datadog (DDOG) insider sale by Sean Michael Walters under a 10b5-1 plan?

Yes. The filing states the shares were sold under a Rule 10b5-1 plan dated December 12, 2025. Such plans pre-schedule trades, indicating the transaction timing was arranged in advance rather than decided on the trade date.

What type of security did the Datadog (DDOG) insider sell in this Form 4?

The insider transaction involved Datadog Class A Common Stock. Sean Michael Walters sold 1,914 shares in an open-market sale at $150 per share, and the filing lists his remaining direct and small indirect holdings after the trade.

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

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Accepted by SEC EDGAR 05/07/2026 - 04:31 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walters Sean Michael

(Last) (First) (Middle)

C/O DATADOG, INC.

620 8TH AVENUE, 45TH FLOOR

(Street)

NEW YORK NEW YORK 10018

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Datadog, Inc. [ DDOG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Revenue Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/05/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	05/05/2026		S(1)		1,914	D	$150	291,267	D
Class A Common Stock								8	I	By Son

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares sold pursuant to a 10b5-1 plan dated December 12, 2025.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	05/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)