Were Sean Michael Walters’ Datadog (DDOG) share sales under a Rule 10b5-1 plan?

Yes. A Form 4 footnote states the shares were sold pursuant to a 10b5-1 plan dated December 12, 2025. Such pre-arranged trading plans allow insiders to systematically sell shares according to preset instructions, reducing the significance of trade timing decisions.

Datadog (NASDAQ: DDOG) CRO trims stake with 11,876-share open-market sale

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Datadog, Inc.’s Chief Revenue Officer Sean Michael Walters reported selling 11,876 shares of Class A Common Stock in open-market transactions on June 11, 2026. The trades were executed under a Rule 10b5-1 trading plan dated December 12, 2025, indicating they were pre-scheduled.

The sales were split across multiple transactions at reported weighted-average prices near $230 per share, including 1,479 shares at $233.9133 per share. Following these sales, Walters holds 270,096 Datadog shares directly, plus 8 shares indirectly held by his son.

Insider Trade Summary 10b5-1

Net Seller: 11,876 shares ($2,743,551)

Net Sell 10 txns

Insider Walters Sean Michael

Role Chief Revenue Officer

Sold 11,876 shs ($2.74M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	200	$225.1832	$45K
Sale	Class A Common Stock	200	$226.105	$45K
Sale	Class A Common Stock	800	$227.535	$182K
Sale	Class A Common Stock	800	$228.7598	$183K
Sale	Class A Common Stock	2,300	$229.7562	$528K
Sale	Class A Common Stock	2,287	$230.8406	$528K
Sale	Class A Common Stock	1,613	$232.014	$374K
Sale	Class A Common Stock	2,197	$232.9037	$512K
Sale	Class A Common Stock	1,479	$233.9133	$346K
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 270,096 shares (Direct, null); Class A Common Stock — 8 shares (Indirect, By Son)

Footnotes (1)

Shares sold pursuant to a 10b5-1 plan dated December 12, 2025. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $224.79 to $225.56. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $226.03 to $226.18. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $227.11 to $228.08. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.13 to $229.05. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $229.19 to $230.17. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.40 to $231.37. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $231.45 to $232.36. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.46 to $233.38. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.54 to $234.20. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Key Figures

Shares sold: 11,876 shares Direct holdings after sale: 270,096 shares Indirect holdings: 8 shares +3 more

6 metrics

Shares sold 11,876 shares Total Datadog Class A shares sold on June 11, 2026

Direct holdings after sale 270,096 shares Datadog Class A shares directly owned by Walters post-transaction

Indirect holdings 8 shares Class A shares reported as owned indirectly through son

Sample sale price $233.9133 per share Price for 1,479-share open-market sale on June 11, 2026

10b5-1 plan date December 12, 2025 Pre-arranged trading plan governing reported sales

Number of sale transactions 9 transactions Non-derivative open-market sales coded “S”

Key Terms

Rule 10b5-1 plan, weighted-average sales price, Class A Common Stock

3 terms

Rule 10b5-1 plan regulatory

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

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

weighted-average sales price financial

"Price reported is a weighted-average sales price. The shares were sold at prices ranging..."

Class A Common Stock financial

"security_title: Class A Common Stock in multiple non-derivative sale transactions"

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.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Form 4 Insider Transactions: What Each Field Means →

06/15/2026 - 04:41 PM

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).

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

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)
06/11/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	06/11/2026		S⁽¹⁾		200	D	$225.1832⁽²⁾	270,096	D
Class A Common Stock	06/11/2026		S⁽¹⁾		200	D	$226.105⁽³⁾	269,896	D
Class A Common Stock	06/11/2026		S⁽¹⁾		800	D	$227.535⁽⁴⁾	269,096	D
Class A Common Stock	06/11/2026		S⁽¹⁾		800	D	$228.7598⁽⁵⁾	268,296	D
Class A Common Stock	06/11/2026		S⁽¹⁾		2,300	D	$229.7562⁽⁶⁾	265,996	D
Class A Common Stock	06/11/2026		S⁽¹⁾		2,287	D	$230.8406⁽⁷⁾	263,709	D
Class A Common Stock	06/11/2026		S⁽¹⁾		1,613	D	$232.014⁽⁸⁾	262,096	D
Class A Common Stock	06/11/2026		S⁽¹⁾		2,197	D	$232.9037⁽⁹⁾	259,899	D
Class A Common Stock	06/11/2026		S⁽¹⁾		1,479	D	$233.9133⁽¹⁰⁾	258,420	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

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

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $224.79 to $225.56. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

3. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $226.03 to $226.18. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

4. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $227.11 to $228.08. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

5. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.13 to $229.05. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

6. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $229.19 to $230.17. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

7. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $230.40 to $231.37. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

8. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $231.45 to $232.36. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

9. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $232.46 to $233.38. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

10. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $233.54 to $234.20. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	06/15/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What did Datadog (DDOG) insider Sean Michael Walters report in this Form 4?

Sean Michael Walters, Datadog’s Chief Revenue Officer, reported selling 11,876 shares of Class A Common Stock on June 11, 2026. The sales were executed in multiple open-market transactions under a pre-arranged Rule 10b5-1 trading plan dated December 12, 2025.

How many Datadog (DDOG) shares did Sean Michael Walters sell and at what price?

Walters sold a total of 11,876 Datadog Class A shares in separate open-market trades. Reported weighted-average sale prices were around $230 per share, including 1,479 shares at $233.9133, with detailed price ranges disclosed for each transaction batch in the footnotes.

How many Datadog (DDOG) shares does Sean Michael Walters hold after these transactions?

After the reported sales, Walters directly holds 270,096 shares of Datadog Class A Common Stock. He also has an additional 8 shares reported as indirectly owned through his son, according to the Form 4 ownership detail fields included in the filing data.

What type of transactions did Datadog (DDOG) insider Sean Michael Walters execute?

Walters executed open-market sales of Datadog Class A Common Stock, coded as “S” transactions on the Form 4. These are standard sale transactions, not option exercises, gifts, or tax-withholding events, and are categorized as non-derivative trades in the filing data.

Does the Datadog (DDOG) Form 4 show any remaining derivative positions for Sean Michael Walters?

The derivative section in the provided filing data is empty, indicating no derivative transactions were reported in this Form 4. The report focuses solely on sales of non-derivative Class A Common Stock and the resulting direct and indirect share ownership positions.