Form 4: Vinciarelli Sells Vicor Stock Under 10b5-1 Plan

Patrizio Vinciarelli, Chairman & CEO of Vicor Corp, reported the sale of common stock valued at over $2.4 million through a pre-arranged trading plan.

Summary

• Patrizio Vinciarelli, Chairman & CEO and a 10% owner of Vicor Corporation, has reported the sale of a significant number of common stock shares.
• The transactions occurred on June 11, 2026, and were executed under a Rule 10b5-1 trading plan adopted on February 26, 2026.
• The total number of shares sold across multiple transactions amounts to 17,125 shares.
• The sales generated proceeds totaling approximately $2,417,000, with individual sale prices ranging from $280.33 to $300.49.
• Following these transactions, Vinciarelli beneficially owns 8,628,090 shares of common stock.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this filing as neutral to slightly negative due to the significant volume of stock sold by a key executive, despite the mitigating factor of the Rule 10b5-1 plan.

Positives

• The sales were conducted under a Rule 10b5-1 trading plan, which is designed to provide an affirmative defense against allegations of insider trading by establishing predetermined trading arrangements.
• The reporting person continues to hold a substantial number of shares (8,628,090) after the reported sales, indicating continued significant beneficial ownership.

Negatives

• A significant number of shares were sold by a key executive and large shareholder, which could be perceived negatively by the market.
• The total value of shares sold exceeds $2.4 million.

Risks

• The sale of a large block of shares by a key executive could signal a lack of confidence in future stock performance, although the 10b5-1 plan mitigates this interpretation.
• Market perception of insider selling, even under a pre-arranged plan, can sometimes lead to downward pressure on the stock price.

Future Outlook

The filing itself does not contain forward-looking statements or guidance. The Rule 10b5-1 plan indicates a pre-determined strategy for future stock sales.

Management Comments

• The reporting person undertakes to provide to Vicor Corporation, any security holder of Vicor Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (19) to this Form 4.

Industry Context

StockSavvy.ai notes that insider selling, particularly under a Rule 10b5-1 plan, is a common occurrence for executives managing their personal finances and diversification. While it can sometimes be interpreted as a negative signal, the pre-planned nature of these transactions aims to remove the implication of non-public information.

Stakeholder Impact

• Shareholders: May perceive the sale as a negative signal, potentially impacting short-term stock price, although the 10b5-1 plan mitigates concerns about insider trading.
• Employees: Similar to shareholders, may interpret the sale in various ways, but the pre-planned nature is a key consideration.
• Management: Reinforces the standard practice of using 10b5-1 plans for executive stock transactions.

Next Steps

• The reporting person may continue to sell shares according to the Rule 10b5-1 plan.
• The company may receive requests for detailed transaction information as indicated in the footnotes.

Key Dates

Keywords

Vicor Corp, VICR, Form 4, Insider Trading, Rule 10b5-1, Stock Sale, Patrizio Vinciarelli, Beneficial Ownership, SEC Filing