Form 4: Dropbox CEO Sells Shares After Class B Conversion

Dropbox CEO Andrew Houston converted 92,000 Class B shares to Class A and subsequently sold them for a weighted average price of $29.5317 per share, pursuant to a Rule 10b5-1 trading plan.

Summary

• Andrew Houston, Chief Executive Officer, Director, and 10% Owner of Dropbox, Inc. (DBX), reported transactions on December 1, 2025.
• Mr. Houston converted 92,000 shares of Class B Common Stock into 92,000 shares of Class A Common Stock at a price of $0.
• Following the conversion, 92,000 shares of Class A Common Stock were sold at a weighted average price of $29.5317 per share, with individual trades ranging from $29.26 to $29.82.
• These sales were executed under a Rule 10b5-1 trading plan adopted by Mr. Houston on March 12, 2025.
• After these transactions, Mr. Houston's direct beneficial ownership of Class A Common Stock is 8,266,666 shares, primarily restricted stock awards subject to vesting conditions.
• Indirect beneficial ownership includes 92,000 Class A shares and 66,943,460 Class B shares held by the Andrew Houston Revocable Trust.
• Additional indirect holdings include 716,728 Class A shares and 7,608,764 Class B shares through the Houston Remainder Trust.
• The Erin Yu Houston Revocable Trust holds 444,444 Class A shares indirectly.
• The Houston 2012 Irrevocable Children's Trust holds 500,500 Class B shares indirectly.

Sentiment

Score: 5

Explanation: The filing reports a routine, pre-planned insider transaction (conversion and sale) by the CEO, which is neither inherently positive nor negative for the company's operational performance or future prospects. The use of a 10b5-1 plan suggests a non-discretionary sale.

Positives

• The sale of Class A Common Stock was conducted pursuant to a pre-arranged Rule 10b5-1 trading plan, adopted on March 12, 2025, which indicates a non-discretionary transaction and can mitigate concerns about opportunistic insider selling.

Negatives

• The transaction represents a reduction in the CEO's direct equity stake in the company, which, while planned, is still a form of insider selling.

Related Party Transactions

• Shares are held indirectly through various trusts (Andrew Houston Revocable Trust, Houston Remainder Trust, The Erin Yu Houston Revocable Trust, Houston 2012 Irrevocable Children's Trust) for which the reporting person or their spouse serves as trustee. These are considered related party holdings for beneficial ownership reporting.

Stakeholder Impact

• Shareholders: A minor, routine insider sale under a pre-arranged plan is unlikely to have a significant impact on shareholder sentiment or the company's valuation.

Key Dates

Keywords

Dropbox, DBX, Andrew Houston, CEO, insider transaction, Form 4, stock sale, Class A Common Stock, Class B Common Stock, 10b5-1 plan, beneficial ownership