Form 4: Guardant Health Director Converts RSUs to Common Stock

Guardant Health Director Roberto Mignone converted 264 restricted stock units into common stock, increasing his direct beneficial ownership.

Summary

• Roberto Mignone, a Director at Guardant Health, Inc., reported a transaction involving company securities.
• Mignone acquired 264 shares of Guardant Health Common Stock on December 21, 2025.
• This acquisition resulted from the conversion of 264 Restricted Stock Units (RSUs) at a price of $0 per share.
• Following this transaction, Mignone directly beneficially owns 3,695 shares of Common Stock.
• He also directly beneficially owns 8,976 Restricted Stock Units.
• The 264 Restricted Stock Units converted were part of an award granted on November 8, 2024, with 25% having vested on October 21, 2025, and the remaining 75% scheduled to vest monthly over the subsequent three-year period.

Sentiment

Score: 6

Explanation: Neutral to slightly positive. It's a routine insider transaction (vesting and conversion), which is expected. The director increasing direct stock ownership is generally seen as a positive alignment of interests, but the transaction itself is not a discretionary purchase.

Positives

• Director Mignone's increased direct ownership of common stock (264 shares) aligns his interests with shareholders.
• The conversion of RSUs indicates a vesting event, which is a normal part of executive compensation and retention.

Future Outlook

This filing does not provide forward-looking statements or guidance regarding the company's future performance, focusing solely on an insider's equity transaction.

Industry Context

This Form 4 filing is a routine disclosure of an insider equity transaction and does not provide information directly related to broader industry trends or competitive landscape.

Comparison to Industry Standards

• This filing is a standard insider transaction report and does not contain information suitable for comparison to industry-specific benchmarks or competitor results.

Stakeholder Impact

• Shareholders: Increased direct ownership by a director may signal confidence in the company's long-term prospects, aligning management interests with shareholder value.

Next Steps

• The remaining 8,976 Restricted Stock Units held by Roberto Mignone will continue to vest monthly over the next three years, following the initial 25% vesting on October 21, 2025.

Key Dates

Recommendation

This Form 4 filing reports a routine vesting and conversion of Restricted Stock Units by a director. While the increase in direct common stock ownership by an insider is generally a positive signal of alignment, it is not a discretionary purchase and does not provide new fundamental information about the company's performance or outlook. Therefore, it does not warrant a change in investment recommendation based solely on this filing.

Keywords

Guardant Health, GH, SEC Form 4, Insider Transaction, Restricted Stock Units, RSU Conversion, Director Ownership, Roberto Mignone, Equity Compensation