Dropbox officer plans 11,332-share Rule 144 sale

Rhea-AI Filing Summary

DROPBOX, INC. (DBX) is the issuer for a planned sale of common stock by officer Ali Dasdan under Rule 144. The notice covers up to 11,332 shares of common stock, relating to Restricted Stock Units, with a proposed sale date of August 18, 2026 on NASDAQ. It also reports a prior Rule 10b5-1 sale of 12,972 shares on July 14, 2026.

Key Figures

Shares to be sold: 11,332 shares Aggregate market value (planned sale): $378,262.16 Proposed sale date: 08/18/2026 +3 more

6 metrics

Shares to be sold 11,332 shares Maximum Dropbox common shares covered by Ali Dasdan’s Rule 144 notice

Aggregate market value (planned sale) $378,262.16 Value associated with 11,332 shares of Dropbox common stock in the Rule 144 filing

Proposed sale date 08/18/2026 Planned sale date for the Rule 144 transaction on NASDAQ

RSU-related shares 11,332 shares Restricted Stock Units indicated as of 08/15/2026 in the securities-to-be-sold section

Prior 10b5-1 sale shares 12,972 shares Shares of Dropbox common stock sold on 07/14/2026 under a 10b5-1 plan

Prior 10b5-1 sale value $389,160.00 Total proceeds from the 12,972-share sale on 07/14/2026

Key Terms

Rule 144, Restricted Stock Units, 10b5-1

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.

10b5-1 regulatory

"10b5-1 Sales for ALI DASDAN 50 Hawthorne Street"

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.

FAQ

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

What does the Form 144 filing for DBX disclose about Ali Dasdan's planned stock sale?

The Form 144 for DBX discloses that officer Ali Dasdan intends to sell up to 11,332 shares of Dropbox common stock under Rule 144, with a proposed sale date of August 18, 2026 on NASDAQ.

How many Dropbox (DBX) shares are covered by Ali Dasdan’s current Rule 144 notice?

Ali Dasdan’s current Rule 144 notice covers up to 11,332 shares of Dropbox common stock. These shares relate to Restricted Stock Units scheduled as of August 15, 2026, with a proposed sale date of August 18, 2026.

What is the reported market value of the Dropbox (DBX) shares in Ali Dasdan’s Form 144?

The Form 144 lists an aggregate market value of $378,262.16 for the 11,332 shares of Dropbox common stock. This value is associated with the proposed Rule 144 sale dated August 18, 2026 on NASDAQ.

What prior 10b5-1 sale by Ali Dasdan in DBX stock is disclosed?

The filing reports that under a Rule 10b5-1 plan, Ali Dasdan sold 12,972 shares of Dropbox common stock on July 14, 2026, for total proceeds of $389,160.00 during the past three months.

Is Dropbox (DBX) itself selling shares in this Form 144 filing?

No. The Form 144 relates to a proposed sale of Dropbox common stock by officer Ali Dasdan for his account under Rule 144. Dropbox, Inc. is identified as the issuer, not as the selling security holder.

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

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Accepted by SEC EDGAR 08/18/2026 - 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	0001963980
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	ALI DASDAN
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	11332	378262.16	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 *
Common	08/15/2026	Restricted Stock Units	Issuer			11332	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for ALI DASDAN 50 Hawthorne Street San Francisco CA 94105	Common	07/14/2026	12972	389160.00

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/12/2025
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/ Ali Dasdan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)