Insider Trading Arrangements

3 Months Ended

Dec. 31, 2025

During the three months ended December 31, 2025, the Company’s directors and officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted written plans intended to satisfy the affirmative defense conditions of Securities Exchange Act Rule 10b5-1(c) for the sale of the Company’s securities as set forth in the table below.

Name

Position

Action

Date

Total Shares of Class A Common Stock to be Sold

Expiration Date

Julie Richardson

Director

Adoption

November 7, 2025

4,865

December 31, 2026

Amit Agarwal (1)

Director

Adoption

December 8, 2025

200,000

March 19, 2027

Kerry Acocella

General Counsel and Secretary

Adoption

December 11, 2025

69,379 (2)

December 31, 2026

Sean Walters

Chief Revenue Officer

Adoption

December 12, 2025

183,046 (2)

June 30, 2027

David Obstler

Chief Financial Officer

Adoption

December 14, 2025

75,000

March 31, 2027

Olivier Pomel

Chief Executive Officer

Modification (3)

December 15, 2025

1,525,692 (4)

February 18, 2027

(1)The shares will be sold under a Rule 10b5-1 trading plan by the Agarwal 2018 Family Trust.

(2)The actual number of shares that will be sold under the Rule 10b5-1 trading plan will be reduced by the number of shares sold pursuant to the Company’s election under its equity incentive plans to require the satisfaction of tax withholding obligations realized upon the vesting of RSUs and PSUs to be funded by a sell-to-cover transaction. The number of Company shares to be sold to satisfy the Company’s tax withholding obligation is not known at this time as it is dependent on future events, including the future trading price of the Company’s shares.

(3)Represents a modification under Rule 10b5-1(c)(1)(iv) of a Rule 10b5-1 trading plan adopted on September 15, 2025, which did not result in any change to the total number of shares to be sold under the plan.

(4)Approximately 509,000 shares will be sold in sell-to-cover transactions intended to satisfy tax withholding obligations and exercise costs realized upon the exercise of stock options.

Non-Rule 10b5-1 Arrangement Adopted

false

Rule 10b5-1 Arrangement Terminated

false

Non-Rule 10b5-1 Arrangement Terminated

false

Julie Richardson [Member]

Trading Arrangements, by Individual

Name

Julie Richardson

Title

Director

Datadog, Inc. 10-K