The concentrated selling by the CTO and CIO, combined with director sales and no insider buying, suggests insiders may be reducing exposure ahead of potential headwinds. Monitor upcoming earnings or clinical/regulatory updates for Guardant's liquid biopsy franchise.
Price Chart
Executive Summary
A cluster of insider selling at Guardant Health over the past week, totaling $2.35M in open-market sales, with the CTO alone selling $1.38M. The selling is concentrated among directors and senior officers, with no corresponding open-market purchases, signaling potential bearish sentiment from insiders.
Key Financial Metrics
Key Facts
- Total insider open-market sales of $2.35M over a 7-day window (Sep 10–17, 2026).
- CTO Darya Chudova sold $1.38M worth of shares (7,700 shares at ~$178).
- CIO Kumud Kalia sold $632K worth of shares (4,000 shares at ~$158).
- Three directors (Azar, Krognes, Musa) sold a combined $337K.
- No open-market purchases were reported in the cluster.
- Non-cash derivative exercises (Azar, Musa) were for $0 and do not represent economic selling.
Financial Impact
Total insider selling of $2.35M represents approximately 0.72% of Guardant Health's $326M market cap, exceeding the 0.5% threshold for significant insider selling.
Risk Factors
- Insider selling may signal lack of confidence in near-term prospects.
- No open-market purchases to offset the selling pressure.
- C-suite selling (CTO, CIO) carries more weight than director-level sales.
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-GH-1790029029746 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 21, 2026 6d ago | Institutional Cluster | $162.94 | awaiting T+20 | — | $173.25 (+6.33%) |
Oct 14, 2026 13d ago | 144 | $165.88 | awaiting T+20 | — | $173.25 (+4.44%) |
Sep 17, 2026 5w ago | Insider Cluster | $179.38 $158.60 | ▲ +11.58% | ▲ +11.79% | $173.25 (+3.42%) |
Sep 17, 2026 5w ago | Insider Cluster | $179.38 $158.60 | ▲ +11.58% | ▲ +11.79% | $173.25 (+3.42%) |
Sep 17, 2026 5w ago | Insider Cluster | $179.38 $158.60 | ▼ −11.58% | ▼ −11.79% | $173.25 (−3.42%) |
Aug 24, 2026 9w ago | Insider Cluster | $164.92 $176.31 | ▲ +6.91% | ▲ +6.66% | $173.25 (+5.05%) |
Aug 13, 2026 10w ago | Insider Cluster | $157.21 $167.84 | ▲ +6.76% | ▲ +8.75% | $173.25 (+10.20%) |
Aug 13, 2026 10w ago | Insider Cluster | $157.21 $167.84 | ▲ +6.76% | ▲ +8.75% | $173.25 (+10.20%) |
Aug 11, 2026 11w ago | Insider Cluster | $165.11 $159.03 | ▼ −3.68% | ▼ −1.78% | $173.25 (+4.93%) |
Aug 11, 2026 11w ago | Insider Cluster | $165.11 $159.03 | ▼ −3.68% | ▼ −1.78% | $173.25 (+4.93%) |
US Market Status
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