Form 4: Five9 CFO Sells Shares Under Pre-Arranged 10b5-1 Plan

Five9's Chief Financial Officer, Bryan M. Lee, sold a total of 11,611 shares of common stock in early March 2026 to cover tax obligations from restricted stock unit vesting, as part of a pre-arranged 10b5-1 trading plan.

Summary

• Bryan M. Lee, Chief Financial Officer of Five9, Inc. (FIVN), reported the sale of common stock.
• The sales occurred on March 4, 2026, and March 5, 2026.
• A total of 9,855 shares were sold on March 4, 2026, at a weighted average price of $17.7 per share.
• An additional 1,756 shares were sold on March 5, 2026, at a price of $17.92 per share.
• The sales were executed pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lee on September 3, 2025.
• The primary purpose of these sales was to cover taxes upon the vesting of restricted stock units.
• Following these transactions, Mr. Lee beneficially owns 328,082 shares of Five9 common stock directly.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event. The sales are routine, pre-planned, and for tax purposes, which typically does not signal a change in management's confidence or the company's fundamentals.

Positives

• The transactions were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a non-discretionary sale and reducing concerns about insider sentiment.

Negatives

• The sale of shares by a Chief Financial Officer, even for tax purposes, represents a reduction in direct insider ownership.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Industry Context

StockSavvy.ai notes that insider sales to cover tax obligations upon the vesting of restricted stock units, especially when executed under a Rule 10b5-1 trading plan, are a common and routine occurrence across all industries. Such transactions are generally not indicative of management's sentiment towards the company's future prospects but rather a standard financial planning practice for executives.

Comparison to Industry Standards

• These types of transactions are standard practice for executives across publicly traded companies, including those in the software and cloud communications sector like Five9. For example, similar tax-related sales under 10b5-1 plans are frequently observed at companies such as RingCentral (RNG) or Zoom Video Communications (ZM) when executive equity awards vest.

Stakeholder Impact

• Shareholders: Minimal direct impact as these are routine, pre-planned sales for tax purposes and do not typically signal a change in company fundamentals or management's long-term view.

Key Dates

Recommendation

The reported insider sales by Five9's CFO are routine transactions executed under a Rule 10b5-1 plan to cover tax obligations from restricted stock unit vesting. Such pre-planned, non-discretionary sales are generally not considered indicative of a change in the company's fundamental outlook or management's confidence. Therefore, a 'hold' recommendation is appropriate, as this filing does not provide new information that would warrant a change in investment thesis.

Keywords

Five9, FIVN, Insider Trading, Form 4, Stock Sale, CFO, 10b5-1 Plan, Restricted Stock Units, Tax Withholding