X0609 4 2026-07-01 0 0001441816 MongoDB, Inc. MDB 0001269088 BERRY MICHAEL J false C/O MONGODB, INC. 1633 BROADWAY, 38TH FLOOR NEW YORK NY 10019 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-07-01 4 F 0 7082 335.90 D 77738 D Common Stock 1500 I By Trust Represents shares of common stock withheld by the Issuer to satisfy tax withholding obligations for the Reporting Person due upon the vesting of Restricted Stock Units previously granted to the Reporting Person. These shares are held by The Berry Family Trust, a revocable trust of which the Reporting Person is a trustee. /s/ Paul Johnston, Attorney-in-Fact 2026-07-06