[Form 4] MongoDB, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Charles M. Hazard Jr., a director of MongoDB, Inc. (MDB), reported sales of Class A common stock under a Rule 10b5-1 trading plan. On 09/02/2025 the filing shows two sale transactions totaling 999 shares sold at a price of $310 per share. After these dispositions the reporting person beneficially owned 47,366 shares directly and, through The Narragansett Bay Childrens Trust for which he is trustee, 14,493 shares indirectly (the filing disclaims beneficial ownership of the trust shares except to the extent of pecuniary interest). The report is signed by an attorney-in-fact and notes the sales were executed pursuant to the 10b5-1 plan.

Insights

Securities Analyst

TL;DR: Routine director sales under a 10b5-1 plan; small aggregate relative to typical institutional holdings.

The Form 4 discloses scheduled dispositions of 833 and 166 Class A shares at $310 each on 09/02/2025, totaling 999 shares. These sales are identified as made under a Rule 10b5-1 trading plan, which typically mitigates concerns about opportunistic timing. Post-transaction holdings are 47,366 shares held directly and 14,493 indirectly via a trust where the reporting person is trustee. From an investor-impact perspective, the disclosure documents insider liquidity but does not indicate a change in control or a material shift in ownership concentration based on the data provided.

Corporate Governance Expert

TL;DR: Governance disclosure appears compliant; trustee relationship and disclaimer are clearly stated.

The filing explicitly states the trust ownership and includes the trustee disclaimer, clarifying the reporting person’s voting and dispositive power over the trust shares while disclaiming beneficial ownership except for pecuniary interest. The use of a pre-established 10b5-1 plan is disclosed, and the document is properly signed by an attorney-in-fact. These elements align with standard Section 16 reporting practices and provide transparent context for the insider sales.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Hazard Charles M Jr

(Last) (First) (Middle)

C/O FLYBRIDGE CAPITAL PARTNERS

855 BOYLSTON ST, SUITE 1000

(Street)

BOSTON MA 02116

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MongoDB, Inc. [ MDB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/02/2025		S(1)		833	D	$310	47,366	D
Class A Common Stock	09/02/2025		S(1)		166	D	$310	14,493	I	By Trust(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. 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.

Remarks:

	/s/ Paul Johnston, Attorney-in-Fact	09/04/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Charles M. Hazard Jr. report for MDB?

The Form 4 reports two sales on 09/02/2025 totaling 999 Class A shares sold at $310 per share under a Rule 10b5-1 plan.

How many MongoDB shares does the reporting person own after the transactions?

After the reported sales the reporting person owned 47,366 shares directly and held 14,493 shares indirectly through The Narragansett Bay Childrens Trust.

Were the sales part of an automated trading plan?

Yes. The filing states the transactions were executed pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

What is the nature of the indirect ownership reported?

The indirect holdings are held by The Narragansett Bay Childrens Trust; the reporting person is the trustee and disclaims beneficial ownership except for any pecuniary interest.

Who signed the Form 4 filing?

The filing is signed by /s/ Paul Johnston, Attorney-in-Fact with a signature date of 09/04/2025.