Traders should monitor for potential downward pressure on NTRA shares, especially given the concentration of selling by the Executive Chairman. While the dollar amount is modest relative to market cap, the timing and clustering of sales post-exercise may signal lack of conviction at current valuation levels. Watch for follow-on selling or absence of buybacks as a confirmation signal.
Price Chart
Executive Summary
Natera's Executive Chairman Matthew Rabinowitz exercised and sold shares following a series of derivative exercises, generating over $5.4 million in open-market sales. The activity was concentrated over three days, with the majority of value coming from Rabinowitz's sales, while a director also made a small sale. Most transactions were non-cash exercises, but the open-market dispositions represent material insider selling.
Key Financial Metrics
Key Facts
- Executive Chairman Matthew Rabinowitz conducted multiple derivative exercises totaling 275,000 shares, with 200,000 shares exercised at $9.59 (total cost: $1.9M) and 75,000 at $0.
- Rabinowitz sold 25,228 shares in open-market transactions at prices between $186.75 and $190.07, realizing $4.73M in proceeds.
- Director Rowan Chapman sold 122 shares for $23,348.36.
- Total open-market selling by insiders in the cluster: $4.75M over 7 days.
- All sales occurred within a 5-day window, indicating coordinated timing post-exercise.
Financial Impact
$4.75M in open-market insider selling over 7 days, representing 0.017% of Natera's $28.0B market cap
Risk Factors
- Perception of insider pessimism given the Executive Chairman's significant sale
- Potential for additional selling if other insiders follow suit
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (10 trades, 7d window) | cluster-NTRA-1773795940612 |
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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