While the dollar amount is not massive relative to market cap, the concentration of selling — especially by the CEO — is a negative signal. Traders should watch for any follow-up filings or commentary, particularly ahead of earnings, and monitor for further selling. The timing at elevated stock prices may suggest profit-taking, but repeated CEO sales can erode confidence.
Price Chart
Executive Summary
Over the past seven days, multiple insiders at Vicor Corp (VICR) sold shares, including Chairman and CEO Patrizio Vinciarelli, who sold over $1.4 million in stock, and Director Estia Eichten, who sold $348,000. General Manager Michael McNamara exercised options and sold the resulting shares for over $317,000. The total open-market sales amount to approximately $2.07 million, representing a modest but notable cluster of insider selling.
Key Financial Metrics
Key Facts
- CEO Patrizio Vinciarelli sold 7,568 shares in three separate transactions for $1,410,148.07 in total.
- Director Estia Eichten sold 2,000 shares for $348,000.
- Michael McNamara exercised 3,336 shares via derivatives (one transaction at $0, one at $101,097.48 cost basis) and sold 1,668 shares for $317,036.59.
- Total open-market sales by insiders in 7 days: ~$2.07 million.
- All transactions occurred between March 13 and March 18, 2026, amid rising stock price (sales ranged from $165 to $192/share).
- Non-cash transactions (exercises, tax withholdings) do not contribute to economic selling pressure.
Financial Impact
$2.07 million in open-market insider sales over 7 days, representing ~0.024% of Vicor's $8.7B market cap.
Risk Factors
- CEO selling may be perceived as lack of confidence despite strong stock performance.
- Potential for negative market perception even if sales are for personal financial planning.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CONTEXT: Insider Cluster Data (7 trades, 7d window) | cluster-VICR-1773943609502 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 21d ago | Press Release | $197.91 $222.72 | ▲ +12.54% | ▲ +12.76% | $308.90 (+56.08%) |
Aug 27, 2026 5w ago | 8-K | $203.64 $178.76 | ▼ −12.22% | ▼ −12.49% | $308.90 (+51.69%) |
Aug 19, 2026 6w ago | Insider Cluster | $217.35 $197.23 | ▼ −9.26% | ▼ −8.87% | $308.90 (+42.12%) |
Aug 19, 2026 6w ago | Insider Cluster | $217.35 $197.23 | ▼ −9.26% | ▼ −8.87% | $308.90 (+42.12%) |
Jul 21, 2026 10w ago | 8-K | $214.70 $206.44 | ▼ −3.85% | ▼ −2.62% | $308.90 (+43.88%) |
Jul 21, 2026 10w ago | Press Release | $214.70 $206.44 | ▼ −3.85% | ▼ −2.62% | $308.90 (+43.88%) |
Jul 7, 2026 12w ago | Press Release | $257.34 $264.50 | ▲ +2.78% | ▲ +2.23% | $308.90 (+20.04%) |
Jul 7, 2026 12w ago | Insider Cluster | $257.34 $264.50 | ▲ +2.78% | ▲ +2.23% | $308.90 (+20.04%) |
Jul 6, 2026 12w ago | Insider Cluster | $285.34 $272.05 | ▼ −4.66% | ▼ −5.15% | $308.90 (+8.26%) |
Jul 6, 2026 12w ago | Insider Cluster | $285.34 $272.05 | ▼ −4.66% | ▼ −5.15% | $308.90 (+8.26%) |
US Market Status
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