Form of Proxy

MONGODB, INC.

Notes

BD Client Code:

Client Name:

Number of Shares Held in a BD Nominee Company:

No.	Proposition		For	Against	Abstain
1	DIRECTOR Francisco DSouza
2	DIRECTOR Charles M. Hazard, Jr.
3	DIRECTOR Tom Killalea
4	Approval, on a non-binding advisory basis, of the compensation of our named executive officers.
5	Approval, on a non-binding advisory basis, of the frequency of future advisory votes on the compensation of our named executive officers.
6	Ratification of the selection of PricewaterhouseCoopers LLP as our independent registered public accounting firm for our fiscal year ending January 31, 2026.
7	Approval of an amendment to the Companys charter to limit the liability of certain officers as permitted by Delaware law.