[Form 4] MongoDB, Inc. Insider Trading Activity

Rhea-AI Filing Summary

MongoDB (MDB) director reported open-market sales under a Rule 10b5-1 plan. On 10/14/2025, the reporting person sold 10,000 Class A shares at weighted average prices of $309.18, $310.03, $312.32, and $313.66. On 10/15/2025 and 10/16/2025, an additional 4,000 and 2,000 shares were sold indirectly by a trust at weighted average prices of $315.99 and $322.00.

Following these transactions, holdings were 1,069,316 shares direct, 508,896 shares indirect via The Dwight A. Merriman 2012 Trust, and 83,845 shares held by the Dwight A. Merriman Charitable Foundation, over which the reporting person has voting and investment power but no pecuniary interest.

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^*

MERRIMAN DWIGHT A

(Last) (First) (Middle)

C/O MONGODB, INC.

1633 BROADWAY, 38TH FLOOR

(Street)

NEW YORK NY 10019

(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)
10/14/2025

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	10/14/2025		S(1)		2,000	D	$309.18(2)	1,077,316	D
Class A Common Stock	10/14/2025		S(1)		500	D	$310.03(3)	1,076,816	D
Class A Common Stock	10/14/2025		S(1)		7,158	D	$312.32(4)	1,069,658	D
Class A Common Stock	10/14/2025		S(1)		342	D	$313.66	1,069,316	D
Class A Common Stock	10/15/2025		S(1)		4,000	D	$315.99(5)	510,896	I	By Trust(6)
Class A Common Stock	10/16/2025		S(1)		2,000	D	$322	508,896	I	By Trust(6)
Class A Common Stock								83,845	I	Dwight A. Merriman Charitable Foundation(7)

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. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $308.90 to $309.53, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

3. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $310.00 to $310.15, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

4. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $312.02 to $312.51, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

5. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $315.94 to $316.51, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

6. These shares are held by The Dwight A. Merriman 2012 Trust for the benefit of the Reporting Person's children.

7. The Dwight A. Merriman Charitable Foundation is a Delaware nonstock nonprofit corporation. The Reporting Person is deemed to have voting and investment power over the shares of MongoDB, Inc. Class A Common Stock held by the Dwight A. Merriman Charitable Foundation, but has no pecuniary interest in these shares.

Remarks:

	/s/ Paul Johnston, Attorney-in-Fact	10/16/2025
	** 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 MDB report on this Form 4?

A director reported selling 10,000 Class A shares on 10/14/2025 and, via a trust, 4,000 on 10/15/2025 and 2,000 on 10/16/2025.

Were the MDB insider sales under a Rule 10b5-1 plan?

Yes. The filing states the transactions were made pursuant to a Rule 10b5-1 trading plan.

What prices were received for the MDB share sales?

Weighted average prices were $309.18, $310.03, $312.32, $313.66, $315.99, and $322.00, with trades executed within stated ranges.

How many MDB shares does the insider hold after the transactions?

Post-transaction: 1,069,316 direct; 508,896 indirect via The Dwight A. Merriman 2012 Trust; 83,845 by the Dwight A. Merriman Charitable Foundation.

What is the insider’s relationship to MongoDB (MDB)?

The reporting person is a Director.

Does the insider have economic interest in the foundation’s MDB shares?

No. The filing notes no pecuniary interest in the foundation’s 83,845 shares, though voting and investment power is deemed.