Dropbox officer plans sale of 12,382 shares

Rhea-AI Filing Summary

DROPBOX, INC. (DBX) received a Rule 144 notice that officer William Yoon intends to sell up to 12,382 shares of common stock through Morgan Stanley Smith Barney LLC. The shares are related to Restricted Stock Units dated August 15, 2026, with an indicated aggregate value of $442,037.40.

Key Figures

Shares to be sold under Rule 144: 12,382 shares Aggregate market value of shares: $442,037.40 Referenced share figure: 150,561,680 shares +2 more

5 metrics

Shares to be sold under Rule 144 12,382 shares Common stock covered by the Form 144 notice for officer William Yoon

Aggregate market value of shares $442,037.40 Value associated with the 12,382 Dropbox common shares in the Rule 144 notice

Referenced share figure 150,561,680 shares Share count listed in the securities information section with NASDAQ reference

Planned sale date reference September 4, 2026 Date appearing in the securities information section for the planned transaction

RSU date August 15, 2026 Date associated with the Restricted Stock Units underlying the common stock

Key Terms

Rule 144, Restricted Stock Units, 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

"Common | 08/15/2026 | 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.

common stock financial

"144: Securities Information Common"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

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

It discloses that officer William Yoon has filed a Rule 144 notice to sell up to 12,382 shares of Dropbox common stock through Morgan Stanley Smith Barney LLC, with an indicated aggregate value of $442,037.40.

How many DROPBOX, INC. (DBX) shares are planned to be sold under this Form 144?

The notice covers up to 12,382 shares of Dropbox common stock to be sold. The securities are tied to Restricted Stock Units with a date of August 15, 2026.

What is the approximate value of the DBX shares in this Rule 144 notice?

The filing lists an aggregate market value of $442,037.40 for the 12,382 shares of Dropbox common stock covered by the Rule 144 notice.

What type of securities are being sold in the DROPBOX, INC. (DBX) Form 144?

The securities are common stock of Dropbox, related to Restricted Stock Units dated August 15, 2026, being registered for resale under Rule 144.

Which broker is handling the planned DBX share sale under Rule 144?

The notice identifies Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, as the broker handling the planned sale of Dropbox common stock.

How many DROPBOX, INC. (DBX) shares are referenced as outstanding in this filing?

The filing references 150,561,680 shares of Dropbox common stock, which are listed in the securities information section as a share figure associated with the NASDAQ listing.

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 - 04:27 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	0002059795
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	WILLIAM YOON
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
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	12382	442037.40	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	08/15/2026	Restricted Stock Units	Issuer			12382	08/15/2026	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	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/ William Yoon
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)