Datadog (DDOG) Chief People Officer granted 25,354 RSUs

Rhea-AI Filing Summary

Galloreese David reported acquisition or exercise transactions in this Form 4 filing.

Datadog, Inc. reported that Chief People Officer David Galloreese received an equity grant of 25,354 shares of Class A common stock in the form of restricted stock units (RSUs) at no cash cost. Each RSU represents the right to receive one share as it vests.

The RSUs vest as to 12/48 of the shares on March 1, 2027, with the remaining shares vesting in 12 equal quarterly installments on each June 1, September 1, December 1 and March 1 thereafter, as long as he remains in Continuous Service under Datadog’s 2019 Equity Incentive Plan. Following this award, he directly holds 130,886 shares of Class A common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Galloreese David

Role Chief People Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	25,354	$0.00	--

Holdings After Transaction: Class A Common Stock — 130,886 shares (Direct)

Footnotes (1)

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Key Figures

RSU grant size: 25,354 shares Shares held after grant: 130,886 shares RSU vesting start: March 1, 2027 +1 more

4 metrics

RSU grant size 25,354 shares Restricted stock units of Class A common stock granted to David Galloreese

Shares held after grant 130,886 shares Direct Class A common stock holdings following the RSU award

RSU vesting start March 1, 2027 12/48 of RSU shares vest on this date

Vesting cadence Quarterly installments Remaining RSUs vest in 12 equal parts on June 1, September 1, December 1 and March 1

Key Terms

restricted stock units ("RSUs"), Continuous Service, 2019 Equity Incentive Plan

3 terms

restricted stock units ("RSUs") financial

"Represents the number of shares of Class A Common Stock underlying restricted stock units ("RSUs")."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Continuous Service financial

"subject to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan)"

2019 Equity Incentive Plan financial

"Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date."

Form 4 Insider Transactions: What Each Field Means →

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^*

Galloreese David

(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 People Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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	04/01/2026		A		25,354(1)	A	$0	130,886	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the number of shares of Class A Common Stock underlying restricted stock units ("RSUs"). Each RSU represents the contingent right to receive one share of the Issuer's Class A Common Stock. The shares underlying the RSUs vest as to 12/48 of the shares on March 1, 2027 and the remainder of the shares vest in 12 equal installments on each June 1, September 1, December 1 and March 1 thereafter, subject to the Reporting Person remaining in Continuous Service (as defined in the Issuer's 2019 Equity Incentive Plan) of the Issuer as of each such date.

Remarks:

	/s/ Kerry Acocella, Attorney-in-Fact	04/03/2026
	** 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)

FAQ

What insider transaction did Datadog (DDOG) report for David Galloreese?

Datadog reported that Chief People Officer David Galloreese received a grant of 25,354 restricted stock units (RSUs) of Class A common stock. These RSUs were awarded at no cash cost and increase his direct holdings to 130,886 shares after the award.

Is the Datadog (DDOG) Form 4 transaction a market purchase or sale?

The Form 4 shows a grant of 25,354 restricted stock units to David Galloreese, not an open-market purchase or sale. This is a compensation-related award coded as a grant/award acquisition rather than a discretionary trade in Datadog’s Class A common stock.

How do the new RSUs for Datadog’s David Galloreese vest over time?

The RSUs vest as to 12/48 of the underlying shares on March 1, 2027. The remaining shares vest in 12 equal installments on each June 1, September 1, December 1 and March 1 thereafter, subject to his continued service with Datadog.

What does each RSU granted to David Galloreese by Datadog (DDOG) represent?

Each restricted stock unit represents the contingent right to receive one share of Datadog’s Class A common stock upon vesting. Shares are only delivered as the vesting schedule is satisfied and David Galloreese continues in Continuous Service under the 2019 Equity Incentive Plan.

How many Datadog (DDOG) shares does David Galloreese hold after this Form 4 grant?

After the reported grant, David Galloreese directly holds 130,886 shares of Datadog Class A common stock. This figure includes existing holdings plus the newly awarded 25,354 restricted stock units, which will convert into shares as they vest over the stated schedule.

What conditions apply to the Datadog RSUs awarded to David Galloreese?

The RSUs are subject to a time-based vesting schedule and Continuous Service under Datadog’s 2019 Equity Incentive Plan. Vesting occurs first on March 1, 2027, then in 12 equal quarterly installments, requiring Mr. Galloreese to remain employed through each vesting date.