---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-303088"
form_type: "8-K"
ticker: "GH"
cik: "0001576280"
company_name: "Guardant Health, Inc."
filed_at: "2021-10-20T23:59:59+00:00"
generated_at: "2026-06-28T19:38:32.197182+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Guardant Health appoints Myrtle Potter to Board of Directors

## Summary
- Myrtle Potter appointed as Class I director effective Oct 15, 2021; term expires at 2022 Annual Meeting.
- Potter also appointed to audit committee; will receive standard non-employee director compensation.
- Compensation includes stock option and RSU each valued at $362,500 with modified grant date Nov 8, 2021.
- Awards vest 1/4 on first anniversary of appointment, then monthly over three years.
- Potter is CEO of Sumitovant Biopharma; previously COO at Genentech and President at Bristol-Myers Squibb.

## SEC filing metadata
- accession: 0001193125-21-303088
- form_type: 8-K
- ticker: GH
- cik: 0001576280
- company_name: Guardant Health, Inc.
- filed_at: 2021-10-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1576280/000119312521303088/0001193125-21-303088-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1576280/000119312521303088/d242793d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-303088
- JSON: https://secwatch.observer/filing/0001193125-21-303088.json
- Plain text: https://secwatch.observer/filing/0001193125-21-303088.txt

## Key facts
- Executive change
  Myrtle Potter was appointed as Class I director at Guardant Health, Inc..
  - Action: appointed
  - Role: Class I director
  source text: Effective October 15, 2021, the Board of Directors (the “Board”) of Guardant Health, Inc. (the “Company”) increased the number of directors on the Board to nine and appointed Myrtle Potter as a Class I director of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1576280/000119312521303088/0001193125-21-303088-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.