Were Datadog (DDOG) CFO share sales made under a Rule 10b5-1 plan?

Yes. The filing notes the shares were sold pursuant to a Rule 10b5-1 trading plan dated March 9, 2026. Such plans allow insiders to pre-schedule trades, reducing the significance of trade timing as a signal about company prospects.

Datadog (DDOG) CFO sells 75,000 shares under 10b5-1 plan

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Datadog, Inc. Chief Financial Officer David M. Obstler sold 75,000 shares of Class A Common Stock in open-market transactions. The trades occurred on June 8, 2026 across nine separate sales, with reported per-share prices generally in the low-to-mid $230s.

The transactions were executed pursuant to a Rule 10b5-1 trading plan dated March 9, 2026, indicating they were pre-scheduled. Footnotes state that prices are reported on a weighted-average basis, with actual sale prices ranging from $228.75 to $239.55 per share, and detailed breakdowns available on request.

Insider Trade Summary 10b5-1

Net Seller: 75,000 shares ($17,376,592)

Net Sell 9 txns

Insider OBSTLER DAVID M

Role Chief Financial Officer

Sold 75,000 shs ($17.38M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	7,500	$229.2883	$1.72M
Sale	Class A Common Stock	17,966	$230.5904	$4.14M
Sale	Class A Common Stock	21,382	$231.314	$4.95M
Sale	Class A Common Stock	12,398	$232.4147	$2.88M
Sale	Class A Common Stock	10,054	$233.3147	$2.35M
Sale	Class A Common Stock	2,783	$234.3125	$652K
Sale	Class A Common Stock	2,217	$235.3507	$522K
Sale	Class A Common Stock	100	$236.20	$24K
Sale	Class A Common Stock	600	$239.1317	$143K

Holdings After Transaction: Class A Common Stock — 502,091 shares (Direct, null)

Footnotes (1)

Shares sold pursuant to a 10b5-1 plan dated March 9, 2026. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.75 to $229.73. 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 $229.92 to $230.90. 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 $230.92 to $231.91. 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 $231.92 to $232.91. 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 $232.92 to $233.85. 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 $233.99 to $234.90. 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 $234.99 to $235.84. 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 $239.04 to $239.55. 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: 75,000 shares Largest single block: 21,382 shares Example sale price: $239.1317 per share +3 more

6 metrics

Shares sold 75,000 shares Total Class A Common Stock sold on June 8, 2026

Largest single block 21,382 shares Single largest reported sale tranche on June 8, 2026

Example sale price $239.1317 per share Weighted-average price for a 600-share sale tranche

Lowest price range $228.75–$229.73 per share Footnoted range for one weighted-average sale

Highest price range $239.04–$239.55 per share Footnoted range for one weighted-average sale

Trade date June 8, 2026 Date of all reported open-market sales

Key Terms

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

4 terms

Rule 10b5-1 plan regulatory

"Shares sold pursuant to a 10b5-1 plan dated March 9, 2026."

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."

open-market sale financial

"transaction_action: open-market sale"

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.

Class A Common Stock financial

"security_title: Class A Common Stock"

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.

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Form 4 Insider Transactions: What Each Field Means →

06/10/2026 - 04:27 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^*

OBSTLER DAVID M

(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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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	06/08/2026		S⁽¹⁾		7,500	D	$229.2883⁽²⁾	502,091	D
Class A Common Stock	06/08/2026		S⁽¹⁾		17,966	D	$230.5904⁽³⁾	484,125	D
Class A Common Stock	06/08/2026		S⁽¹⁾		21,382	D	$231.314⁽⁴⁾	462,743	D
Class A Common Stock	06/08/2026		S⁽¹⁾		12,398	D	$232.4147⁽⁵⁾	450,345	D
Class A Common Stock	06/08/2026		S⁽¹⁾		10,054	D	$233.3147⁽⁶⁾	440,291	D
Class A Common Stock	06/08/2026		S⁽¹⁾		2,783	D	$234.3125⁽⁷⁾	437,508	D
Class A Common Stock	06/08/2026		S⁽¹⁾		2,217	D	$235.3507⁽⁸⁾	435,291	D
Class A Common Stock	06/08/2026		S⁽¹⁾		100	D	$236.2	435,191	D
Class A Common Stock	06/08/2026		S⁽¹⁾		600	D	$239.1317⁽⁹⁾	434,591	D

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 March 9, 2026.

2. Price reported is a weighted-average sales price. The shares were sold at prices ranging from $228.75 to $229.73. 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 $229.92 to $230.90. 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 $230.92 to $231.91. 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 $231.92 to $232.91. 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 $232.92 to $233.85. 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 $233.99 to $234.90. 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 $234.99 to $235.84. 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 $239.04 to $239.55. 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	06/10/2026
	** 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) CFO David Obstler report in this Form 4?

Datadog CFO David M. Obstler reported selling 75,000 shares of Class A Common Stock. The sales occurred in multiple open-market transactions on June 8, 2026, and were executed under a pre-arranged Rule 10b5-1 trading plan.

How many Datadog (DDOG) shares did the CFO sell and at what prices?

The CFO sold a total of 75,000 Class A shares. Reported weighted-average prices for the individual trades ranged from about $228.75 to $239.55 per share, with detailed per-trade pricing available from the reporting person upon request.

What type of transactions did the Datadog (DDOG) Form 4 disclose?

The Form 4 discloses nine open-market sales of Datadog Class A Common Stock. Each transaction is coded “S” for sale, reflecting non-derivative dispositions of shares rather than option exercises, gifts, or tax-withholding related transfers.

Did the Datadog (DDOG) Form 4 mention weighted-average sale prices?

Yes. Footnotes state the reported prices are weighted-average sales prices. Individual trades were executed within narrow price ranges, and the reporting person will provide full breakdowns of shares sold at each separate price upon request.