Form 4: Five9 CFO Bryan Lee Executes Planned Stock Sale

Five9 CFO Bryan Lee sold 18,131 shares of common stock to cover tax obligations related to the vesting of restricted stock units.

Summary

• Bryan M. Lee, Chief Financial Officer of Five9, Inc., sold a total of 18,131 shares of common stock on June 4 and June 5, 2026.
• The transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on September 3, 2025.
• The primary purpose of the sales was to satisfy tax withholding obligations resulting from the vesting of restricted stock units.
• Following these transactions, the reporting person retains beneficial ownership of 309,951 shares of Five9 common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the transaction is a routine administrative action related to tax obligations rather than a discretionary divestment.

Positives

• The sales were conducted under a pre-established Rule 10b5-1 trading plan, indicating the transactions were scheduled in advance rather than based on discretionary market timing.
• The transactions were specifically identified as 'sell-to-cover' actions to satisfy tax liabilities, which is a standard and routine corporate practice for executives.

Negatives

• The reduction in the executive's direct equity stake in the company.

Risks

• Market perception of insider selling, even when conducted under a pre-planned 10b5-1 arrangement, can occasionally lead to short-term volatility.

Future Outlook

No specific forward-looking guidance regarding company performance was provided in this filing; the document is strictly limited to reporting changes in beneficial ownership.

Management Comments

• The reporting person has committed to providing full information regarding the number of shares sold at each separate price within the reported ranges upon request by the SEC or security holders.

Industry Context

StockSavvy.ai notes that routine 'sell-to-cover' transactions by C-suite executives are standard industry practice and generally do not signal a change in management's outlook on the company's long-term prospects.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for executives to manage equity compensation while avoiding potential conflicts of interest or accusations of insider trading.

Stakeholder Impact

• Minimal impact on shareholders as the transaction was pre-planned and related to tax obligations.

Next Steps

• No future actions or milestones were disclosed in this filing.

Key Dates

Keywords

Five9, FIVN, Insider Trading, Form 4, CFO, Equity Compensation, Rule 10b5-1