Form 4: Vicor CEO Sells 49,900 Shares Under 10b5-1 Plan

Vicor Corporation's Chairman and CEO, Patrizio Vinciarelli, sold 49,900 shares of common stock on March 4, 2026, through a pre-arranged Rule 10b5-1 trading plan.

Summary

• Patrizio Vinciarelli, Chairman and CEO of Vicor Corporation, reported the sale of 49,900 shares of common stock.
• The sales occurred on March 4, 2026, across multiple transactions.
• These transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025.
• The shares were sold at weighted average prices ranging from $195.8747 to $208.06 per share.
• Following these transactions, Mr. Vinciarelli directly beneficially owns 9,658,163 shares of Vicor common stock.
• Additionally, 171,125 shares are indirectly held by the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, for which he is a Trustee.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event. While it is insider selling, the pre-arranged 10b5-1 plan mitigates concerns that the sales are based on new, negative material information, making it a routine portfolio management activity.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating the transactions were scheduled in advance and not based on recent material non-public information.

Negatives

• Insider selling, even under a 10b5-1 plan, represents a reduction in direct ownership by a key executive and significant shareholder.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that insider selling, even under a 10b5-1 plan, is a routine event for executives managing their personal portfolios. Without additional context on Vicor's operational performance or industry trends, these sales alone do not provide significant insight into the company's broader market position or competitive landscape.

Related Party Transactions

• Patrizio Vinciarelli indirectly holds 171,125 shares as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of his child. This constitutes a related party holding.

Stakeholder Impact

• Shareholders: The sale by a key executive could be perceived as a slight negative signal, though the 10b5-1 plan lessens this impact. The overall beneficial ownership remains substantial.
• Employees, Customers, Suppliers, Creditors: No direct impact from this insider transaction report.

Key Dates

Recommendation

The reported insider sales by Chairman and CEO Patrizio Vinciarelli were executed under a pre-arranged Rule 10b5-1 trading plan, which typically indicates a planned diversification or liquidity event rather than a reaction to new, adverse company developments. While insider selling can sometimes be a bearish signal, the pre-planned nature of these transactions suggests a neutral impact on the company's fundamental outlook. Investors should continue to hold, monitoring broader company performance and market conditions rather than reacting solely to this routine insider transaction.

Keywords

Vicor Corporation, VICR, Patrizio Vinciarelli, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, CEO, Chairman, Beneficial Ownership