MongoDB, Inc. — Director's Dealing 2025

Oct 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MongoDB, Inc. (MDB)
CIK: 0001441816
Period of Report: 2025-10-01

Reporting Person: Ittycheria Dev (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-01	Class A Common Stock	A	892	—	Acquired	204129	Direct
2025-10-01	Class A Common Stock	F	4118	$310.38	Disposed	200011	Direct

Footnotes

F1: Represents shares of Class A common stock received upon the vesting of a portion of the performance-based restricted stock units ("PSUs") awarded to the Reporting Person on March 15, 2025 under the Issuer's long-term incentive bonus plan and 2016 Equity Incentive Plan, which vested based on the Issuer's satisfaction of certain performance criteria. In light of the performance-based vesting criteria of the PSUs, such shares were not previously reportable under Section 16. Each PSU represents the contingent right to receive one share of common stock of the Issuer.

F2: Represents shares of Class A common stock withheld by the Issuer to satisfy tax withholding obligations for the Reporting Person due upon the vesting of PSUs and certain Restricted Stock Units previously granted to the Reporting Person.