Trusts tied to Datadog (NASDAQ: DDOG) director sell 52,832 shares

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Datadog, Inc. director Matthew Jacobson, through estate-planning trusts, reported open-market sales of 52,832 shares of Class A common stock on May 8, 2026. The shares were sold in multiple tranches at weighted average prices of about $187–$190 per share.

The filing notes that the prices reflect weighted averages over numerous individual trades within specified ranges, and that full trade-by-trade details are available to regulators on request. The footnotes state these shares are held through trusts and that Jacobson disclaims beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Net Seller: 52,832 shares ($9,999,891)

Net Sell 4 txns

Insider Jacobson Matthew

Role null

Sold 52,832 shs ($10.00M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	9,553	$187.4405	$1.79M
Sale	Class A Common Stock	11,050	$188.6408	$2.08M
Sale	Class A Common Stock	14,072	$189.722	$2.67M
Sale	Class A Common Stock	18,157	$190.286	$3.46M

Holdings After Transaction: Class A Common Stock — 666,005 shares (Direct, null)

Footnotes (1)

The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $187.06 to $188.01. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. These shares are directly held by the Reporting Person through a trust of which he is a trustee and another estate planning trust having an independent trustee. The Reporting Person disclaims beneficial ownership of the shares held by such trusts for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $188.06 to $189.05. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $189.06 to $190.05. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $190.07 to $190.57. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

Key Figures

Total shares sold: 52,832 shares Tranche sale price: $190.2860 per share Tranche sale price: $189.7220 per share +4 more

7 metrics

Total shares sold 52,832 shares Open-market sales of Class A common stock on May 8, 2026

Tranche sale price $190.2860 per share One reported weighted average sale price for a tranche of shares

Tranche sale price $189.7220 per share One reported weighted average sale price for a tranche of shares

Tranche sale price $188.6408 per share One reported weighted average sale price for a tranche of shares

Tranche sale price $187.4405 per share One reported weighted average sale price for a tranche of shares

Low trade price range $187.06 per share Lowest price in one footnoted sale range

High trade price range $190.57 per share Highest price in one footnoted sale range

Key Terms

weighted average price, estate planning trust, beneficial ownership, pecuniary interest, +1 more

5 terms

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

estate planning trust financial

"through a trust of which he is a trustee and another estate planning trust having an independent trustee."

beneficial ownership financial

"The Reporting Person disclaims beneficial ownership of the shares held by such trusts"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of his pecuniary interest therein, if any."

Section 16 of the Exchange Act regulatory

"for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest"

Form 4 Insider Transactions: What Each Field Means →

05/12/2026 - 04:05 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^*

Jacobson Matthew

(Last)

(First)

(Middle)

C/O ICONIQ CAPITAL

50 BEALE ST., STE. 2300

(Street)

SAN FRANCISCO

CALIFORNIA

94105

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

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	05/08/2026		S		9,553	D	$187.4405⁽¹⁾	666,005	D⁽²⁾
Class A Common Stock	05/08/2026		S		11,050	D	$188.6408⁽³⁾	654,955	D⁽²⁾
Class A Common Stock	05/08/2026		S		14,072	D	$189.722⁽⁴⁾	640,883	D⁽²⁾
Class A Common Stock	05/08/2026		S		18,157	D	$190.286⁽⁵⁾	622,726	D⁽²⁾

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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $187.06 to $188.01. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

2. These shares are directly held by the Reporting Person through a trust of which he is a trustee and another estate planning trust having an independent trustee. The Reporting Person disclaims beneficial ownership of the shares held by such trusts for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $188.06 to $189.05. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $189.06 to $190.05. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $190.07 to $190.57. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

	/s/ Matthew Jacobson	05/12/2026
	** 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 insider transaction did Datadog (DDOG) disclose for Matthew Jacobson?

Datadog reported that trusts associated with director Matthew Jacobson sold 52,832 shares of Class A common stock in open-market transactions on May 8, 2026. The trades were reported on a Form 4 insider filing with detailed price ranges for each group of sales.

How many Datadog (DDOG) shares were sold and at what prices?

The filing shows a total sale of 52,832 Datadog Class A shares across several trades. Weighted average prices per tranche ranged from about $187.44 to $190.29 per share, with underlying individual trades occurring within narrow price bands between $187.06 and $190.57.

Who actually holds the Datadog (DDOG) shares involved in Matthew Jacobson’s sale?

The shares are held through a trust where Jacobson is a trustee and another estate planning trust with an independent trustee. The filing states Jacobson disclaims beneficial ownership of these shares, except to the extent of any pecuniary interest he may have.

Were there any Datadog (DDOG) option exercises or derivative trades in this Form 4?

No. The transactions reported are all sales of Datadog Class A common stock, categorized as non-derivative securities. The derivative section of the filing is empty, indicating no reported option exercises, warrant conversions, or other derivative-related transactions in this Form 4.

How is the sale price information presented in the Datadog (DDOG) Form 4?

For each tranche, the Form 4 provides a single weighted average sale price. Footnotes explain that the shares were sold in multiple trades within specific price ranges, and that detailed information on the number of shares at each exact price is available to SEC staff upon request.

Does the Datadog (DDOG) Form 4 state that Matthew Jacobson is a major shareholder?

The Form 4 identifies Matthew Jacobson as a company director, not a ten-percent owner. It reports his involvement through estate-planning trusts and includes a disclaimer that the filing should not be taken as an admission that he is the beneficial owner of all reported securities.