Dropbox director plans sale of 4,598 shares

Dropbox director Lisa Campbell filed a Rule 144 notice to potentially sell 4,598 common shares worth about $164,000.

Rhea-AI Filing Summary

DROPBOX, INC. (DBX) director Lisa Campbell filed a notice of proposed sale of company common stock under Rule 144. The filing lists 4,598 shares of common stock to be sold through Morgan Stanley Smith Barney LLC, with an aggregate market value of $164,148.60, and indicates prior acquisition via restricted stock units.

Key Figures

Shares to be sold: 4,598 shares Aggregate market value: $164,148.60 Planned sale date: September 4, 2026 +1 more

4 metrics

Shares to be sold 4,598 shares Common stock listed in the Form 144 securities information section

Aggregate market value $164,148.60 Reported value of 4,598 shares of Dropbox common stock

Planned sale date September 4, 2026 Date shown in the securities information section for the proposed sale

Acquisition date of RSUs May 15, 2024 Date the restricted stock units were acquired from the issuer

Key Terms

Rule 144, Restricted Stock Units, aggregate market value

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

"Common | 05/15/2024 | 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.

aggregate market value financial

"Common ... 4598 | 164148.60 | 150561680"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Form 144 filing disclose for DROPBOX, INC. (DBX)?

The filing discloses that director Lisa Campbell intends to sell 4,598 shares of Dropbox common stock under Rule 144 through a broker, with a reported aggregate market value of $164,148.60.

How many Dropbox (DBX) shares are covered by Lisa Campbell’s Form 144?

Lisa Campbell’s Form 144 covers a proposed sale of 4,598 shares of Dropbox common stock, as listed in the securities information and securities-to-be-sold sections.

What is the reported value of the Dropbox (DBX) shares in this Form 144?

The shares covered by the notice have a reported aggregate market value of $164,148.60, based on the information in the securities information section.

How were the Dropbox (DBX) shares in this Form 144 acquired?

The Form 144 states that the securities to be sold are Restricted Stock Units acquired from the issuer on May 15, 2024.

Who is the broker for the proposed Dropbox (DBX) share sale?

The broker identified is Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, as listed in the securities information section.

What is Lisa Campbell’s relationship to DROPBOX, INC. (DBX) in this filing?

Lisa Campbell is identified as a Director of DROPBOX, INC. in connection with this Form 144 notice of proposed sale of common stock.

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

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Available on EDGAR 09/04/2026 - 04:28 PM EDT Accepted by SEC EDGAR 09/04/2026 - 04:28 PM EDT 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	0001775679
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 Street San Francisco CALIFORNIA 94105
Phone	4159307766
Name of Person for Whose Account the Securities are To Be Sold	LISA CAMPBELL
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

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	4598	164148.60	150561680	09/04/2026	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	05/15/2024	Restricted Stock Units	Issuer			4598	05/15/2024	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	09/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/05/2026
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/ Lisa Campbell
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)