Monitor for any upcoming material news (earnings, guidance, regulatory decision) that could explain the broad C-suite selling. The cluster's unanimity and seniority is a cautionary signal despite the small dollar amount relative to market cap. A follow-up Form 4 filing showing a resumption of insider buying would negate the bearish read.
Price Chart
Executive Summary
Seven Natera insiders, including the CEO, CFO, Executive Chairman, and President of Clinical Diagnostics, sold a total of $1.70M in open-market sales over a 7-day window. This is a broad-based cluster involving the entire C-suite and a director, with no insider buying to offset. While the total value is only ~0.004% of Natera's $39.4B market cap (trivial by proportionality), the unanimity and seniority of the selling group is notable and warrants attention for potential upcoming news or a peak in the stock's recent rally.
Key Financial Metrics
Key Facts
- 7 insiders sold a total of $1.70M in open-market sales over 7 days
- CEO Steven Chapman sold ~$317K worth of shares on Aug 3
- CFO Michael Brophy sold ~$131K on Aug 4
- Executive Chairman Matthew Rabinowitz sold ~$448K on Jul 27
- President of Clinical Diagnostics Solomon Moshkevich sold ~$306K on Jul 28
- No insider open-market purchases were reported in the cluster
- Total sales represent ~0.004% of Natera's $39.4B market cap
Financial Impact
Total insider sales of $1.70M, a trivial 0.004% of market cap
Risk Factors
- Insider sales may be part of pre-arranged 10b5-1 plans or tax-related diversification, reducing the signal's information content
- The small dollar amount relative to market cap means the cluster is unlikely to move the stock on its own
- Natera's stock has rallied significantly (recent T+20 alphas of +10-18% per historical performance), and insiders may simply be taking profits
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-NTRA-1785981671144 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 4, 2026 28d ago | Insider Cluster | $328.18 $341.79 | ▲ +4.15% | ▲ +5.36% | $410.35 (+25.04%) |
Aug 29, 2026 4w ago | Insider Cluster | $321.96 $328.59 | ▼ −2.06% | ▼ −2.20% | $410.35 (−27.45%) |
Aug 15, 2026 6w ago | Insider Cluster | $314.18 $327.72 | ▲ +4.31% | ▲ +5.50% | $410.35 (+30.61%) |
Aug 8, 2026 7w ago | Insider Cluster | $318.35 $314.18 | ▼ −1.31% | ▼ −1.26% | $410.35 (+28.90%) |
Aug 6, 2026 8w ago | Insider Cluster | $265.38 $310.78 | ▼ −17.11% | ▼ −15.89% | $410.35 (−54.63%) |
Jul 30, 2026 9w ago | Insider Cluster | $269.66 $265.38 | ▼ −1.59% | ▼ −5.21% | $410.35 (+52.17%) |
Jul 18, 2026 10w ago | Insider Cluster | $262.63 $261.99 | ▼ −0.24% | ▲ +0.18% | $410.35 (+56.25%) |
Jul 16, 2026 11w ago | Insider Cluster | $269.83 $264.69 | ▼ −1.90% | ▼ −0.23% | $410.35 (+52.08%) |
Jul 9, 2026 12w ago | Insider Cluster | $281.85 $269.83 | ▼ −4.26% | ▼ −4.13% | $410.35 (+45.59%) |
Jul 7, 2026 12w ago | Insider Cluster | $281.27 $272.66 | ▼ −3.06% | ▼ −3.61% | $410.35 (+45.89%) |
US Market Status
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