MongoDB Form 144 Discloses Insider Sales and 10b5-1 Reference

Rhea-AI Filing Summary

MongoDB, Inc. (MDB) Form 144 reports a proposed sale of 3,332 common shares through Morgan Stanley Smith Barney LLC with an aggregate market value of $1,051,612.52, scheduled approximately for 09/02/2025. The filing states these 3,332 shares were acquired on 10/01/2009 as a VC investment from the issuer and paid in cash. The notice also discloses related sales in the past three months: 6,668 shares sold for $2,000,400 by Charles M Hazard Jr. and 1,336 shares sold for $400,800 by The Narragansett Bay Children’s Trust, both on 08/28/2025. The filing references Rule 10b5-1 but does not provide a plan adoption date in the form.

Positive

• Full transaction disclosure including broker, share count, aggregate market value and acquisition history is provided
• Past three-month sales by related parties are reported, aiding transparency and Rule 144 aggregation

Negative

• No plan adoption date is provided on the form despite referencing Rule 10b5-1, which is a relevant compliance detail

Insights

Securities Compliance Analyst

TL;DR: Filing discloses a routine Rule 144 sale and recent 10b5-1-related dispositions; documentation appears to meet Rule 144 disclosure elements.

The Form 144 lists the broker, number of shares, aggregate market value and acquisition details required under the rule. It also reports related dispositions within the last three months, which helps aggregate required sales for compliance. The form references a 10b5-1 plan but omits the plan adoption date, which is an important compliance detail if relying on that defense; the filer represents no undisclosed material adverse information.

Equity Research Analyst

TL;DR: Insider-related selling activity is disclosed but represents a small fraction of outstanding shares; impact on float appears limited.

The proposed sale of 3,332 shares (market value ~$1.05M) and recent sales totaling 8,004 shares (~$2.4M gross proceeds) are quantitatively small relative to the reported 81,356,893 shares outstanding. From a market-impact perspective, these transactions are unlikely to materially affect share supply or valuation given the company’s outstanding share base.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3332	1051612.52	81356893	09/02/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	10/01/2009	VC Investment	Issuer			3332	10/01/2009	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for CHARLES M HAZARD JR. 1633 Broadway, 38th Floor New York NY 10019	Common	08/28/2025	6668	2000400.00
10b5-1 Sales for THE NARRAGANSETT BAY CHILDRENS TRUST U/A DTD 12/11/2004 1633 Broadway, 38th Floor New York NY 10019	COMMON	08/28/2025	1336	400800.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does MongoDB's Form 144 disclose about the proposed sale?

The filing shows a proposed sale of 3,332 common shares via Morgan Stanley with an aggregate market value of $1,051,612.52, approx. date 09/02/2025.

When and how were the shares to be sold acquired?

The 3,332 shares were acquired on 10/01/2009 as a VC investment from the issuer and paid in cash.

Did the filer report recent sales in the past three months?

Yes. The filing lists 6,668 shares sold by Charles M Hazard Jr. for $2,000,400 and 1,336 shares sold by The Narragansett Bay Children’s Trust for $400,800, both on 08/28/2025.

Does the Form 144 indicate reliance on a Rule 10b5-1 trading plan?

The form references Rule 10b5-1 but does not provide a plan adoption date on the filing.

How large are these transactions relative to shares outstanding?

The filing reports 81,356,893 shares outstanding; the proposed 3,332-share sale and recent 8,004-share dispositions are a very small fraction of that total.