Guardant Health Chief People Officer Reports RSU Vesting and Tax Withholding

Executive Summary

On October 2, 2026, Guardant Health, Inc. (NASDAQ: GH) filed a Form 4 on behalf of Chief People Officer Terilyn J. Monroe. The filing reflects routine equity compensation activity that took place on October 1, 2026, involving the vesting of restricted stock units (RSUs) and corresponding share withholding to satisfy tax obligations.

Transaction Breakdown

• RSU Conversions (Code M):

  • 2,659 shares acquired at $0.00 from an RSU award granted November 8, 2024.
  • 1,360 shares acquired at $0.00 from an RSU award granted March 12, 2025.
  • Total Shares Acquired: 4,019 shares.

• Tax Withholding Disposition (Code F):

  • 2,098 shares withheld by Guardant Health at a market price of $174.75 per share to cover statutory tax liabilities associated with the vesting.
  • Total Tax Obligation Value: $366,625.50.

• Net Share Impact:

  • Monroe's direct common stock holdings increased net by 1,921 shares (from 22,979 to 24,900 shares).
  • Monroe also continues to hold 18,799 unvested RSUs (10,637 from the 2024 grant and 8,162 from the 2025 grant).

Market and Trading Implications

This filing does not reflect discretionary open-market buying or selling. Transaction codes M (exercise or conversion of derivative security) and F (payment of exercise price or tax liability by delivering or withholding securities) represent standard, pre-scheduled equity vesting mechanics. Consequently, the trading significance is rated Low.