Form 144: 111,166 DBX Shares Reported Sold

Morgan Stanley Smith Barney LLC submitted a Form 144 reporting the sale of 111,166 shares of Common Stock on behalf of THE ANDREW HOUSTON REVOCABLE TRUST.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 reporting the sale of 111,166 shares of Common Stock on behalf of THE ANDREW HOUSTON REVOCABLE TRUST. The filing lists recent 10b5-1 sales by that trust during the past three months, including 164,502 and 109,498 share transactions on 02/02/2026 and 03/02/2026.

Insights

Securities Counsel

Form 144 notifies the market of an intended resale under Rule 144 and lists recent 10b5-1 sales.

The filing identifies 111,166 shares of Common Stock associated with the trustee and itemizes multiple 10b5-1 transactions during the prior three months. Timing and exact distribution methods are procedural disclosures tied to resale rules.

Cash‑flow treatment and any purchaser details are not shown in the excerpt; subsequent filings may report settlement details if required.

Key Figures

Shares reported for resale: 111,166 shares Proceeds associated with 111,166: $2,525,691.52 Shares outstanding listed: 165,704,072 shares +4 more

7 metrics

Shares reported for resale 111,166 shares Form 144 line item

Proceeds associated with 111,166 $2,525,691.52 Amount shown adjacent to 111,166 on filing excerpt

Shares outstanding listed 165,704,072 shares Figure shown with date <date>04/01/2026</date>

10b5-1 sale example 164,502 shares Sale on <date>02/02/2026</date>

Proceeds from 02/02/2026 sale $4,221,088.42 Gross proceeds shown for 164,502-share sale

10b5-1 sale example 109,498 shares Sale on <date>03/02/2026</date>

Proceeds from 03/02/2026 sale $2,731,361.98 Gross proceeds shown for 109,498-share sale

Key Terms

Form 144, 10b5-1, Founders Shares

3 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 regulatory

"10b5-1 Sales for THE ANDREW HOUSTON REVOCABLE TRUST"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Founders Shares market

"Common | 06/25/2007 | Founders Shares"

Founders shares are a special block of a company’s stock originally given to the people who started the business; they often carry extra voting power or favorable terms compared with regular shares. For investors, these shares matter because they concentrate control and influence how future funding, ownership dilution, and decision-making will play out—think of founders shares as the steering wheel that can steer a company’s direction even as more passengers (investors) climb aboard.

FAQ

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

What does the DBX Form 144 filed by Morgan Stanley Smith Barney LLC report?

It reports a proposed resale of 111,166 shares of Common Stock. The filing shows this amount and lists recent 10b5-1 sales by THE ANDREW HOUSTON REVOCABLE TRUST on 01/02/2026, 02/02/2026, and 03/02/2026.

Who is the selling party in the DBX Form 144?

The seller is THE ANDREW HOUSTON REVOCABLE TRUST, represented via Morgan Stanley Smith Barney LLC. The filing lists that trust's address and multiple 10b5-1 transactions in the past three months.

What recent 10b5-1 sales are listed in the DBX Form 144?

Examples include sales of 164,502 and 109,498 shares. The excerpt shows a 164,502‑share sale on 02/02/2026 and a 109,498‑share sale on 03/02/2026, with corresponding gross proceeds stated in the filing.

Does the filing state how much cash was generated by the sales?

Yes; the excerpt lists gross proceeds for individual transactions. For example, the 164,502‑share sale shows $4,221,088.42 and the 109,498‑share sale shows $2,731,361.98 as recorded in the excerpt.

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

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Accepted by SEC EDGAR 04/01/2026 - 04:44 PM Learn about SEC filing dates

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	0001734563
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	DROPBOX INC
SEC File Number	001-38434
Address of Issuer	1800 Owens Street San Francisco CALIFORNIA 94158
Phone	4159307766
Name of Person for Whose Account the Securities are To Be Sold	ANDREW HOUSTON REVOCABLE TRUST
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	Director
Relationship to Issuer	Officer
Relationship to Issuer	10% Stockholder

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	111166	2525691.52	165704072	04/01/2026	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	06/25/2007	Founders Shares	Issuer			111166	06/25/2007	N/A

* 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 THE ANDREW HOUSTON REVOCABLE TRUST 1800 Owens Street San Francisco CA 94158	Common	03/02/2026	109498	2731361.98
10b5-1 Sales for THE ANDREW HOUSTON REVOCABLE TRUST 1800 Owens Street San Francisco CA 94158	Common	02/02/2026	164502	4221088.42
10b5-1 Sales for THE ANDREW HOUSTON REVOCABLE TRUST 1800 Owens Street San Francisco CA 94158	Common	01/12/2026	23818	655130.76
10b5-1 Sales for THE ANDREW HOUSTON REVOCABLE TRUST 1800 Owens Street San Francisco CA 94158	Common	01/09/2026	36182	996325.64
10b5-1 Sales for THE ANDREW HOUSTON REVOCABLE TRUST 1800 Owens Street San Francisco CA 94158	Common	01/02/2026	92668	2493373.72

144: Remarks and Signature

Remarks
Date of Notice	04/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/12/2025
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	/s/ Andrew Houston
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)