Form 4: Guardant Health Director Exercises Options, Sells Shares

Sentiment:

Insider Transaction Report


Guardant Health Director Ian T. Clark exercised stock options and subsequently sold a portion of his indirectly held common stock on December 5, 2025, under a Rule 10b5-1 plan.

Summary

  • Director Ian T. Clark, through The Thornton-Clark Family Trust, acquired a total of 28,611 shares of Guardant Health common stock by exercising three tranches of stock options on December 5, 2025.
  • The option exercise prices were $38.42 for 9,105 shares, $38.005 for 8,803 shares, and $31.84 for 10,703 shares.
  • Concurrently, 28,611 shares of common stock were sold in three separate transactions on December 5, 2025.
  • The sales occurred at weighted average prices of $106.666 for 8,156 shares, $107.2703 for 17,055 shares, and $108.0454 for 3,400 shares.
  • All transactions were executed pursuant to a Rule 10b5-1 plan.
  • Following these transactions, the indirect beneficial ownership of common stock by The Thornton-Clark Family Trust stands at 9,851 shares.

Sentiment

Score: 5

Explanation: The filing reports a director's exercise of stock options and subsequent sale of shares, which is a common event for insider compensation and liquidity management, especially when executed under a Rule 10b5-1 plan. This is a routine transaction and does not inherently indicate a positive or negative sentiment about the company's future.

Positives

  • The director exercised stock options, indicating that the options were in-the-money and provided a significant gain.
  • The sales were executed at prices substantially higher than the option exercise prices, demonstrating a profitable transaction for the insider.

Negatives

  • Insider selling, even under a pre-arranged plan, can sometimes be perceived by the market as a reduction in direct exposure to the company's equity.

Related Party Transactions

  • Director Ian T. Clark's transactions were conducted indirectly through The Thornton-Clark Family Trust, where J Thornton-Clark and I Clark serve as trustees.

Stakeholder Impact

  • Shareholders may observe a reduction in the director's indirect equity holdings, which is a common occurrence for liquidity or diversification purposes, particularly when pre-scheduled under a Rule 10b5-1 plan.

Key Dates

DateDescription
06/15/2022Grant date for 9,105 stock options with an exercise price of $38.42.
06/14/2023Grant date for 8,803 stock options with an exercise price of $38.005.
06/12/2024Grant date for 10,703 stock options with an exercise price of $31.84.
12/05/2025Date of all reported transactions, including option exercises and subsequent sales of common stock.
12/08/2025Signature date of the Form 4 filing.
06/15/2032Expiration date for 9,105 stock options.
06/14/2033Expiration date for 8,803 stock options.
06/12/2034Expiration date for 10,703 stock options.

Recommendation

hold

The filing details a routine insider transaction involving the exercise of stock options and subsequent sale of shares by a director under a pre-arranged Rule 10b5-1 plan. Such transactions are common for liquidity and compensation purposes and do not typically signal a fundamental change in the company's outlook or warrant a change in investment recommendation based solely on this report.

Keywords

Guardant Health, GH, Insider Trading, Form 4, Stock Options, Director, Share Sale, Rule 10b5-1

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