Insider sells 1,500-share lots under 10b5-1 (DBX)

TIMOTHY REGAN reported planned sales of Common shares under 10b5-1 plans.

Rhea-AI Filing Summary

TIMOTHY REGAN reported planned sales of Common shares under 10b5-1 plans. The excerpt lists multiple 10b5-1 sale entries of 1,500 shares each on 11/28/2025, 12/15/2025, 12/30/2025, 01/15/2026, 01/30/2026, and 02/26/2026, with dollar amounts shown for each trade.

Insights

Securities Compliance Analyst

Form 144 lists scheduled 10b5-1 dispositions by an insider.

The filing excerpts identify multiple planned sales under a 10b5-1 sales plan for TIMOTHY REGAN, each entry showing 1,500 shares on specific dates between 11/28/2025 and 02/26/2026

These entries reflect reported transactions under an established trading plan; timing and execution were governed by those plan terms. Subsequent SEC filings or broker confirmations would detail final execution and settlement.

FAQ

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

What sales does the DBX Form 144 excerpt show for TIMOTHY REGAN?

The excerpt shows multiple 10b5-1 sales of 1,500 shares each on 11/28/2025, 12/15/2025, 12/30/2025, 01/15/2026, 01/30/2026, and 02/26/2026.

Are the dollar amounts of each sale listed in the excerpt?

Yes; each dated sale entry includes a dollar figure per the excerpt, for example 44460.00 on 11/28/2025 and 36870.00 on 02/26/2026, alongside the 1,500 share quantity.

Does the filing indicate these were 10b5-1 planned trades?

Yes; each sale row is labeled as a 10b5-1 Sales Plan associated with TIMOTHY REGAN, indicating the trades were executed pursuant to an established trading plan.

Who is the broker or selling agent listed in the excerpt?

The excerpt lists Morgan Stanley Smith Barney LLC Executive Financial Services as the brokerage/agent in the securities information section for the reported common share sales.

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

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Accepted by SEC EDGAR 02/27/2026 - 05:31 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	0001734440
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	1800 Owens Street San Francisco CALIFORNIA 94158
Phone	4159307766
Name of Person for Whose Account the Securities are To Be Sold	TIMOTHY REGAN
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	1500	37260.00	165704072	02/27/2026	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	05/15/2025	Restricted Stock Units	Issuer			1500	05/15/2025	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 Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	02/26/2026	1500	36870.00
10b5-1 Sales Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	01/30/2026	1500	38685.00
10b5-1 Sales Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	01/15/2026	1500	40260.00
10b5-1 Sales Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	12/30/2025	1500	41865.00
10b5-1 Sales Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	12/15/2025	1500	42525.00
10b5-1 Sales Plan for TIMOTHY REGAN 1800 Owens Street San Francisco CA 94158	Common	11/28/2025	1500	44460.00

144: Remarks and Signature

Remarks
Date of Notice	02/27/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/10/2025
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/ Timothy Regan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)