Dropbox insider plans sale of 15,830 shares

Rhea-AI Filing Summary

DROPBOX, INC. (DBX) insider Eric T. Webster filed a notice of proposed sale under Rule 144 for 15,830 shares of Class A Common Stock. The shares are to be sold through Morgan Stanley Smith Barney LLC Executive Financial Services, with an indicated aggregate sale price of $539,693.60, and are tied to Restricted Stock Units acquired on 08/17/2026.

Key Figures

Shares proposed for sale: 15,830 shares Aggregate sale price: $539,693.60 Proposed sale date: 08/18/2026 +1 more

4 metrics

Shares proposed for sale 15,830 shares Class A Common Stock covered by the Rule 144 notice

Aggregate sale price $539,693.60 Total dollar amount indicated for the 15,830 shares

Proposed sale date 08/18/2026 Date listed in the securities information section

RSU acquisition date 08/17/2026 Acquisition date for the Restricted Stock Units to be sold

Key Terms

Rule 144, Restricted Stock Units, Class A Common Stock

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Units financial

"Class A Common Stock | 08/17/2026 | Restricted Stock Units | Issuer"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Class A Common Stock financial

"Class A Common Stock | Morgan Stanley Smith Barney LLC Executive Financial Services"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

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

What is being disclosed in this Form 144 related to DBX?

The filing discloses that Eric T. Webster plans to sell 15,830 shares of Dropbox, Inc. Class A Common Stock under Rule 144. The proposed sale will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many Dropbox (DBX) shares are proposed to be sold and at what total amount?

The notice covers a proposed sale of 15,830 shares of DBX Class A Common Stock, with an indicated aggregate sale price of $539,693.60. These figures come directly from the securities information section.

What type of securities are involved in this Dropbox (DBX) Form 144 filing?

The securities are Class A Common Stock of Dropbox, Inc., related to Restricted Stock Units. The RSUs are shown as acquired from the issuer and correspond to the 15,830 shares proposed for sale.

When are the Dropbox (DBX) shares expected to be sold according to this notice?

The proposed sale date listed is 08/18/2026. The related Restricted Stock Units are shown as acquired on 08/17/2026, one day before the planned sale date in the Rule 144 notice.

Which broker is handling the planned Dropbox (DBX) share sale?

The planned sale will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004. This broker is identified in the securities information section.

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

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Available on EDGAR 08/18/2026 - 08:00 PM Accepted by SEC EDGAR 08/18/2026 - 08:00 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	0002104172
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	50 HAWTHORNE ST. SAN FRANCISCO CALIFORNIA 94105
Phone	415-930-7766
Name of Person for Whose Account the Securities are To Be Sold	Eric T Webster
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	Officer

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
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15830	539693.60	150561680	08/18/2026	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 *
Class A Common Stock	08/17/2026	Restricted Stock Units	Issuer			15830	08/17/2026	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
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/ Eric T. Webster
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)