Guardant Health (GH) CEO AmirAli Talasaz Sells 37,500 Shares

What Happened
AmirAli Talasaz, CEO of Guardant Health (GH), sold a total of 37,500 shares in open-market transactions on August 21, 2026, generating approximately $6.34 million. The sales were reported as three separate transactions: 9,023 shares at a weighted average of $168.20 ($1.52M), 20,888 shares at $169.16 ($3.53M), and 7,589 shares at $170.29 ($1.29M). These were outright sales (code S), which are typically routine monetizations rather than purchases that might signal added conviction.

Key Details

• Transaction date: August 21, 2026 (filed August 24, 2026 — within the SEC’s two business-day reporting window).
• Trades reported:
  • 9,023 shares at weighted avg $168.20 (range $167.81–$168.60) → $1,517,631 (F1)
  • 20,888 shares at weighted avg $169.16 (range $168.87–$169.73) → $3,533,452 (F2)
  • 7,589 shares at weighted avg $170.29 (range $169.88–$170.50) → $1,292,302 (F3)
• Total: 37,500 shares sold for $6,343,385 (approx.).
• Shares owned after the transaction: Not specified in the provided filing excerpt.
• Footnotes: Each sale line reports a weighted average price with a price range; the reporting person has offered to provide, upon request, the exact number of shares sold at each separate price within those ranges.
• No option exercise, 10b5-1 plan, gift, or tax-withholding transaction is indicated in this filing excerpt.

Context

• Sales by executives can be routine (diversification, tax planning, liquidity) and do not by themselves indicate a change in company outlook. Purchases typically carry more weight as a bullish signal.
• All transactions here are simple open-market sales (no exercises or awards reported).