Dropbox (NASDAQ: DBX) legal chief sells 9,175 shares under 10b5-1 plan

Q: What insider transaction did Dropbox (DBX) report for William T. Yoon?

Dropbox’s Chief Legal Officer, William T. Yoon , reported selling 9,175 shares of Class A Common Stock in open-market transactions. The sales occurred on March 11, 2026 , and are detailed as two separate trades at different weighted average prices.

Q: At what prices did William T. Yoon sell Dropbox (DBX) shares?

William T. Yoon sold 8,775 shares at a weighted average price of $25.8998 and 400 shares at $26.5650 . Footnotes state these were multiple trades, with price ranges from $25.54 to $26.49 and $26.55 to $26.59.

Q: Was the Dropbox (DBX) insider sale by William T. Yoon under a Rule 10b5-1 plan?

Yes. The filing states that these shares were sold under a Rule 10b5-1 trading plan adopted by William T. Yoon on December 10, 2025 . Such plans pre-schedule trades, providing a structured framework for insider stock sales over time.

Q: What type of security did William T. Yoon sell in the Dropbox (DBX) insider transaction?

The reported insider sales involve Class A Common Stock of Dropbox, Inc. All 9,175 shares sold on March 11, 2026 were non-derivative equity, meaning they were regular common shares rather than options, warrants, or other derivative securities.

Q: Do the footnotes mention anything about restricted stock units for Dropbox (DBX)?

Yes. A footnote explains that certain securities are restricted stock units , each representing the right to receive one Class A share, vesting through February 15, 2029. Unvested units will be cancelled if the reporting person ceases to be a service provider.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Dropbox, Inc. Chief Legal Officer William T. Yoon reported open-market sales of 9,175 shares of Class A Common Stock. On March 11, 2026, he sold 8,775 shares at a weighted average price of $25.8998 and 400 shares at a weighted average price of $26.5650.

According to the disclosure, these transactions were executed in multiple trades with prices ranging from $25.54 to $26.49 and from $26.55 to $26.59, and were carried out under a Rule 10b5-1 trading plan adopted on December 10, 2025. After the sales, Yoon directly holds 189,555 shares of Dropbox Class A Common Stock.

Insider Trade Summary 10b5-1

Net Seller: 9,175 shares ($237,897)

Net Sell 2 txns

Insider Yoon William T

Role Chief Legal Officer

Sold 9,175 shs ($238K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	8,775	$25.8998	$227K
Sale	Class A Common Stock	400	$26.565	$11K

Holdings After Transaction: Class A Common Stock — 189,955 shares (Direct)

Footnotes (1)

These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2025. This transaction was executed in multiple trades at prices ranging from $25.54 to $26.49. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through February 15, 2029. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer. This transaction was executed in multiple trades at prices ranging from $26.55 to $26.59. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Form 4 Insider Transactions: What Each Field Means →

03/13/2026 - 04:44 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Yoon William T

(Last)

(First)

(Middle)

1800 OWENS STREET

SUITE 200

(Street)

SAN FRANCISCO

94158

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
DROPBOX, INC. [ DBX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	03/11/2026		S⁽¹⁾		8,775	D	$25.8998⁽²⁾	189,955⁽³⁾	D
Class A Common Stock	03/11/2026		S⁽¹⁾		400	D	$26.565⁽⁴⁾	189,555⁽³⁾	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2025.

2. This transaction was executed in multiple trades at prices ranging from $25.54 to $26.49. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

3. Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through February 15, 2029. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer.

4. This transaction was executed in multiple trades at prices ranging from $26.55 to $26.59. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Remarks:

	/s/ Cara Angelmar, Attorney-in-Fact	03/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Dropbox (DBX) report for William T. Yoon?

Dropbox’s Chief Legal Officer, William T. Yoon, reported selling 9,175 shares of Class A Common Stock in open-market transactions. The sales occurred on March 11, 2026, and are detailed as two separate trades at different weighted average prices.

At what prices did William T. Yoon sell Dropbox (DBX) shares?

William T. Yoon sold 8,775 shares at a weighted average price of $25.8998 and 400 shares at $26.5650. Footnotes state these were multiple trades, with price ranges from $25.54 to $26.49 and $26.55 to $26.59.

How many Dropbox (DBX) shares does William T. Yoon hold after the reported sale?

Following the reported transactions, William T. Yoon directly holds 189,555 shares of Dropbox Class A Common Stock. This post-transaction ownership figure comes from the Form 4 totals, reflecting his remaining direct holdings after selling 9,175 shares in the open market.

Was the Dropbox (DBX) insider sale by William T. Yoon under a Rule 10b5-1 plan?

Yes. The filing states that these shares were sold under a Rule 10b5-1 trading plan adopted by William T. Yoon on December 10, 2025. Such plans pre-schedule trades, providing a structured framework for insider stock sales over time.

What type of security did William T. Yoon sell in the Dropbox (DBX) insider transaction?

The reported insider sales involve Class A Common Stock of Dropbox, Inc. All 9,175 shares sold on March 11, 2026 were non-derivative equity, meaning they were regular common shares rather than options, warrants, or other derivative securities.

Do the footnotes mention anything about restricted stock units for Dropbox (DBX)?

Yes. A footnote explains that certain securities are restricted stock units, each representing the right to receive one Class A share, vesting through February 15, 2029. Unvested units will be cancelled if the reporting person ceases to be a service provider.