Charles M. Hazard Jr - Nov 3, 2025 Form 4 Insider Report for MongoDB, Inc. (MDB)

Role: Director
Signature: /s/ Paul Johnston, Attorney-in-Fact
Stock symbol: MDB
Transactions as of: Nov 3, 2025
Transactions value $: -$383,336
Form type: 4
Date filed: 11/5/2025, 04:25 PM
Previous filing: Oct 3, 2025
Next filing: Dec 3, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hazard Charles M Jr	Director	C/O FLYBRIDGE CAPITAL PARTNERS, 855 BOYLSTON ST, SUITE 1000, BOSTON	/s/ Paul Johnston, Attorney-in-Fact	2025-11-05	0001339247

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MDB	Common Stock	Sale	-$320K	-833	-1.79%	$383.72	45.7K	Nov 3, 2025	Direct	F1
transaction	MDB	Common Stock	Sale	-$63.7K	-166	-1.16%	$383.72	14.2K	Nov 3, 2025	By Trust	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id	Content
F1	The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
F2	These shares are held by The Narragansett Bay Childrens Trust (the "Trust"). The Reporting Person is the Trustee of the Trust and, as such, has the power to vote and dispose of the shares held by the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

Content

The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

These shares are held by The Narragansett Bay Childrens Trust (the "Trust"). The Reporting Person is the Trustee of the Trust and, as such, has the power to vote and dispose of the shares held by the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust except to the extent of his pecuniary interest therein and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.