MongoDB director Merriman sells 14,000 shares

MongoDB, Inc. director Dwight A. Merriman reported sales of 14,000 shares on October 8 and October 9, 2026, under a Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

MongoDB, Inc. director Dwight A. Merriman reported sales of 14,000 shares on October 8 and October 9, 2026, under a Rule 10b5-1 trading plan. Direct sales on October 8 were 9,608 shares at a weighted-average price of $359.9300 per share and 392 shares at $361.0200 per share. The Dwight A. Merriman 2012 Trust sold 3,000 shares at $359.9000 per share on October 8 and 1,000 shares at $377.0000 per share on October 9. The Dwight A. Merriman Charitable Foundation held 79,262 shares as of October 8, 2026; Merriman was deemed to have voting and investment power over them but had no pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 14,000 shares

Net Sell 5 txns

Insider MERRIMAN DWIGHT A

Role Director

Sold 14,000 shs ($5.06M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F4	1,000	$377.00	$377K
Sale	Common Stock F1, F2	9,608	$359.93	$3.46M
Sale	Common Stock F1, F3	392	$361.02	$142K
Sale	Common Stock F1, F4	3,000	$359.90	$1.08M
holding	Common Stock F5	--	--	--

Holdings After Transaction: Common Stock — 952,953 shares (Direct); Common Stock — 448,896 shares (Indirect, By Trust); Common Stock — 79,262 shares (Indirect, Dwight A. Merriman Charitable Foundation)

Footnotes (5)

1. F1. The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
2. F2. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $359.90 to $360.73, 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. F3. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $360.95 to $361.26, 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. F4. These shares are held by The Dwight A. Merriman 2012 Trust for the benefit of the Reporting Person's children.
5. F5. 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. Common Stock held by the Dwight A. Merriman Charitable Foundation, but has no pecuniary interest in these shares.

Key Figures

Reported shares sold: 14,000 shares Direct shares sold; weighted-average price: 9,608 shares; $359.9300 per share Direct shares sold; weighted-average price: 392 shares; $361.0200 per share +3 more

6 metrics

Reported shares sold 14,000 shares October 8 and October 9, 2026

Direct shares sold; weighted-average price 9,608 shares; $359.9300 per share October 8, 2026

Direct shares sold; weighted-average price 392 shares; $361.0200 per share October 8, 2026

Trust shares sold 3,000 shares at $359.9000 per share The Dwight A. Merriman 2012 Trust; October 8, 2026

Trust shares sold 1,000 shares at $377.0000 per share The Dwight A. Merriman 2012 Trust; October 9, 2026

Shares held 79,262 shares Dwight A. Merriman Charitable Foundation, as of October 8, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price, pecuniary interest

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

pecuniary interest financial

"has no pecuniary interest in these shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What MDB stock sales were reported for Dwight A. Merriman?

The reported sales totaled 14,000 shares on October 8 and October 9, 2026. Direct sales on October 8 were 9,608 shares at a weighted-average price of $359.9300 per share and 392 shares at $361.0200 per share; The Dwight A. Merriman 2012 Trust sold 3,000 shares at $359.9000 per share that day and 1,000 shares at $377.0000 per share on October 9. The sales were under a Rule 10b5-1 trading plan.

What price ranges applied to the October 8 MDB share sales?

The 9,608-share sale had a weighted-average price of $359.9300, with sales in multiple transactions at prices from $359.90 to $360.73, inclusive. The 392-share sale had a weighted-average price of $361.0200, with sales in multiple transactions at prices from $360.95 to $361.26, inclusive.

Who benefited from the MDB shares held in the Dwight A. Merriman 2012 Trust?

The shares held by The Dwight A. Merriman 2012 Trust were for the benefit of the reporting person's children.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/13/2026 - 05:00 PM EDT Accepted by SEC EDGAR 10/13/2026 - 04:59 PM EDT Learn about SEC filing dates

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 NEW YORK 10019

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/08/2026

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

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

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

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
Common Stock	10/08/2026		S(1)		9,608	D	$359.93(2)	953,345	D
Common Stock	10/08/2026		S(1)		392	D	$361.02(3)	952,953	D
Common Stock	10/08/2026		S(1)		3,000	D	$359.9	449,896	I	By Trust(4)
Common Stock	10/09/2026		S(1)		1,000	D	$377	448,896	I	By Trust(4)
Common Stock								79,262	I	Dwight A. Merriman Charitable Foundation(5)

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 transactions were 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 $359.90 to $360.73, 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 $360.95 to $361.26, 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. These shares are held by The Dwight A. Merriman 2012 Trust for the benefit of the Reporting Person's children.

5. 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. 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	10/13/2026
	** 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.
* Form 4: SEC 1474 (03-26)