Dropbox officer files notice to sell 1,631 shares

Dropbox, Inc. (DBX) executive Sarah Schubach, an officer of the company, filed a Form 144 notice for a potential sale of 1,631 shares of Dropbox common stock.

Rhea-AI Filing Summary

Dropbox, Inc. (DBX) executive Sarah Schubach, an officer of the company, filed a Form 144 notice for a potential sale of 1,631 shares of Dropbox common stock. The shares, valued at approximately $55,437.69 in the notice, are to be sold through Morgan Stanley Smith Barney LLC on NASDAQ and originate from restricted stock units scheduled to be acquired on 08/15/2026.

The filing also lists prior sales for Schubach under a Rule 10b5-1 plan during the past three months, including 1,632 shares on 07/31/2026 for $51,587.52 and 1,306 shares on 07/15/2026 for $39,349.78, along with several similar transactions in June 2026.

Key Figures

Shares to be sold: 1,631 shares of common stock Aggregate market value: $55,437.69 Acquisition date of RSUs: 08/15/2026 +4 more

7 metrics

Shares to be sold 1,631 shares of common stock Maximum number of Dropbox shares covered by the Form 144 notice

Aggregate market value $55,437.69 Approximate market value for the 1,631 DBX shares in the Form 144

Acquisition date of RSUs 08/15/2026 Acquisition date for restricted stock units underlying the 1,631 shares

Shares sold on 07/31/2026 1,632 shares Rule 10b5-1 sale of Dropbox common stock on 07/31/2026

Proceeds on 07/31/2026 sale $51,587.52 Aggregate proceeds from 1,632-share sale on 07/31/2026

Shares sold on 07/15/2026 1,306 shares Rule 10b5-1 sale of Dropbox common stock on 07/15/2026

Proceeds on 07/15/2026 sale $39,349.78 Aggregate proceeds from 1,306-share sale on 07/15/2026

Key Terms

Rule 144, restricted stock units, Form 144, 10b5-1

4 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.

Form 144 regulatory

"144: Issuer Information Name of Issuer | Dropbox, Inc."

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 SARAH SCHUBACH 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 DBX Form 144 filed by Sarah Schubach disclose?

It discloses that Dropbox officer Sarah Schubach filed a notice to sell up to 1,631 shares of Dropbox common stock, valued at about $55,437.69, through Morgan Stanley Smith Barney LLC on NASDAQ, with the shares coming from restricted stock units acquired on 08/15/2026.

How many Dropbox (DBX) shares is Sarah Schubach planning to sell under this Form 144?

The notice covers a proposed sale of 1,631 shares of Dropbox common stock. These shares are tied to restricted stock units scheduled to be acquired on 08/15/2026 and are to be sold through Morgan Stanley Smith Barney LLC.

What is the estimated value of the DBX shares in Sarah Schubach’s Form 144?

The filing lists an approximate aggregate market value of $55,437.69 for the 1,631 Dropbox common shares covered by the notice, based on the price information used in the Form 144 submission.

What prior 10b5-1 sales of DBX shares did Sarah Schubach report in the last three months?

The filing lists several Rule 10b5-1 sales, including 1,632 shares on 07/31/2026 for $51,587.52, 1,306 shares on 07/15/2026 for $39,349.78, plus additional sales on 06/30/2026, 06/15/2026, and 06/01/2026 with similar share counts and proceeds.

What is the origin of the DBX shares covered by Sarah Schubach’s Form 144?

The shares come from restricted stock units of Dropbox, with an acquisition date of 08/15/2026. The Form 144 states the issuer is Dropbox and notes that 1,631 shares are associated with these restricted stock units.

Which broker is handling the proposed DBX share sale for Sarah Schubach?

The Form 144 identifies Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, as the broker handling the proposed sale of 1,631 shares of Dropbox common stock on NASDAQ.

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

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Available on EDGAR 08/20/2026 - 04:37 PM EDT Accepted by SEC EDGAR 08/20/2026 - 04:36 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	0002075704
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	SARAH SCHUBACH
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	1631	55437.69	150561680	08/20/2026	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			1631	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 SARAH SCHUBACH 50 Hawthorne Street San Francisco CA 94105	Common	07/31/2026	1632	51587.52
10b5-1 Sales for SARAH SCHUBACH 50 Hawthorne Street San Francisco CA 94105	Common	07/15/2026	1306	39349.78
10b5-1 Sales for SARAH SCHUBACH 50 Hawthorne Street San Francisco CA 94105	Common	06/30/2026	1305	35378.55
10b5-1 Sales for SARAH SCHUBACH 50 Hawthorne Street San Francisco CA 94105	Common	06/15/2026	1306	35131.40
10b5-1 Sales for SARAH SCHUBACH 50 Hawthorne Street San Francisco CA 94105	Common	06/01/2026	1305	36096.30

144: Remarks and Signature

Remarks
Date of Notice	08/20/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/16/2025
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/ Sarah Schubach
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)