Dropbox director sells 4,222 shares in open market

DROPBOX, INC. director Lisa M. Campbell sold 4,222 shares of Class A Common Stock in an open-market transaction at a weighted average price of $26.5098 per share.

Rhea-AI Filing Summary

DROPBOX, INC. director Lisa M. Campbell sold 4,222 shares of Class A Common Stock in an open-market transaction at a weighted average price of $26.5098 per share. The sale was executed under a pre-arranged Rule 10b5-1 trading plan. After this trade, she directly holds 14,998 shares.

Insider Trade Summary 10b5-1

Net Seller: 4,222 shares

Net Sell 1 txn

Insider Campbell Lisa M

Role Director

Sold 4,222 shs ($112K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	4,222	$26.5098	$112K

Holdings After Transaction: Class A Common Stock — 14,998 shares (Direct)

Footnotes (2)

1. F1. These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 10, 2025.
2. F2. This transaction was executed in multiple trades at prices ranging from $26.09 to $26.86. 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.

Key Figures

Shares sold: 4,222 shares Sale price: $26.5098 per share Shares owned after sale: 14,998 shares +1 more

4 metrics

Shares sold 4,222 shares Open-market sale of Class A Common Stock

Sale price $26.5098 per share Weighted average sale price for the transaction

Shares owned after sale 14,998 shares Direct holdings following the transaction

Transaction code S Sale in open market or private transaction

Key Terms

Rule 10b5-1 trading plan, open-market sale, Class A Common Stock, weighted average sale price

4 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Class A Common Stock financial

"security_title: Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

weighted average sale price financial

"The price reported above reflects the weighted average sale price."

FAQ

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

What insider transaction did Dropbox (DBX) director Lisa M. Campbell report?

Lisa M. Campbell reported selling 4,222 shares of Dropbox Class A Common Stock in an open-market transaction. The shares were sold at a weighted average price of $26.5098 per share, according to the Form 4 insider trading report.

At what price did Lisa M. Campbell sell Dropbox (DBX) shares?

She sold 4,222 Dropbox Class A Common shares at a weighted average price of $26.5098. Individual trades occurred in a price range between $26.09 and $26.86, as detailed in the Form 4 transaction footnote.

How many Dropbox (DBX) shares does Lisa M. Campbell hold after the sale?

Following the reported sale, Lisa M. Campbell directly holds 14,998 shares of Dropbox Class A Common Stock. This post-transaction holding figure is disclosed in the Form 4 as total shares beneficially owned after the transaction.

Was the Dropbox (DBX) insider sale made under a Rule 10b5-1 plan?

Yes, the Form 4 states the shares were sold under a Rule 10b5-1 trading plan. The plan was adopted by Lisa M. Campbell on September 10, 2025, indicating the sale was pre-arranged rather than timed discretionarily.

What type of transaction did Lisa M. Campbell execute in Dropbox (DBX) stock?

She executed an open-market sale of Dropbox Class A Common Stock. The Form 4 uses transaction code “S,” described as a sale in open market or private transaction, confirming it was a standard disposition of shares.

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

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Accepted by SEC EDGAR 05/19/2026 - 06:02 PM EDT Learn about SEC filing dates

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).

X

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^*

Campbell Lisa M

(Last) (First) (Middle)

1800 OWENS STREET

SUITE 200

(Street)

SAN FRANCISCO CALIFORNIA 94158

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	05/15/2026		S(1)		4,222	D	$26.5098(2)	14,998	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

2. This transaction was executed in multiple trades at prices ranging from $26.09 to $26.86. 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	05/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)