MongoDB director Charles Hazard sells 595 shares

The director reported 45,237 directly held shares after the sale, alongside positions held through a trust and family limited partnership.

Rhea-AI Filing Summary

MongoDB, Inc. director Charles M. Hazard Jr. sold 595 common shares at $363.85 per share on October 6, 2026, under a Rule 10b5-1 trading plan adopted by him. His reported direct holdings after the sale were 45,237 shares.

The filing also reports 13,995 shares held by The Narragansett Bay Childrens Trust and 17,500 shares held by a family limited partnership. Hazard is trustee of the trust and manager and general partner of the partnership; he disclaims beneficial ownership of those securities except to the extent of his pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 595 shares

Net Sell 3 txns

Insider Hazard Charles M Jr

Role Director

Sold 595 shs ($216K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	595	$363.85	$216K
holding	Common Stock F2	--	--	--
holding	Common Stock F3	--	--	--

Holdings After Transaction: Common Stock — 45,237 shares (Direct); Common Stock — 13,995 shares (Indirect, By Trust); Common Stock — 17,500 shares (Indirect, By Limited Partnership)

Footnotes (3)

1. F1. The transactions were pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
2. 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.
3. F3. The Reporting Person was appointed as the manager and general partner of a family limited partnership that owns the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

Key Figures

Common shares sold: 595 shares Sale price: $363.85 per share Direct shares after sale: 45,237 shares +2 more

5 metrics

Common shares sold 595 shares October 6, 2026

Sale price $363.85 per share October 6, 2026

Direct shares after sale 45,237 shares Reported after the October 6, 2026 sale

Trust-held shares 13,995 shares Held by The Narragansett Bay Childrens Trust

Family limited partnership-held shares 17,500 shares Held by a family limited partnership

Key Terms

Rule 10b5-1 trading plan, beneficial ownership, pecuniary interest

3 terms

Rule 10b5-1 trading plan regulatory

"transactions were pursuant to a Rule 10b5-1 trading plan"

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.

beneficial ownership financial

"disclaims beneficial ownership of the shares owned by the Trust"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of his pecuniary interest therein"

FAQ

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

How many MDB shares did Charles M. Hazard Jr. sell, and at what price?

Charles M. Hazard Jr., a MongoDB director, sold 595 common shares at $363.85 per share on October 6, 2026, under a Rule 10b5-1 trading plan adopted by him.

How many MDB shares did Hazard report after the sale?

Hazard reported 45,237 shares held directly after the sale. The reported positions also included 13,995 shares held by The Narragansett Bay Childrens Trust and 17,500 shares held by a family limited partnership.

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

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Available on EDGAR 10/08/2026 - 05:11 PM Accepted by SEC EDGAR 10/08/2026 - 05:11 PM 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^*

Hazard Charles M Jr

(Last) (First) (Middle)

C/O FLYBRIDGE CAPITAL PARTNERS

855 BOYLSTON ST, SUITE 1000

(Street)

BOSTON MASSACHUSETTS 02116

(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)
10/06/2026

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	10/06/2026		S(1)		595	D	$363.85	45,237	D
Common Stock								13,995	I	By Trust(2)
Common Stock								17,500	I	By Limited Partnership(3)

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. 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.

3. The Reporting Person was appointed as the manager and general partner of a family limited partnership that owns the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

Remarks:

	/s/ Paul Johnston, Attorney-in-Fact	10/08/2026
	** 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)