Form 4: Vicor CEO Sells 40,900 Shares Under 10b5-1 Plan

Vicor Corporation's Chairman and CEO, Patrizio Vinciarelli, reported the sale of 40,900 shares of common stock on March 12, 2026, through a pre-arranged Rule 10b5-1 trading plan.

Summary

• Patrizio Vinciarelli, Chairman and CEO of Vicor Corporation, reported the sale of 40,900 shares of VICR common stock.
• The transactions occurred on March 12, 2026.
• Sales were executed at weighted average prices ranging from $163.7417 to $173.22 per share.
• The sales were conducted pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025.
• Following these transactions, Vinciarelli directly beneficially owns 9,358,163 shares of common stock.
• Additionally, 171,125 shares are indirectly beneficially owned through the Patrizio Vinciarelli Irrevocable Trust.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a slightly negative event due to the reduction in direct insider ownership, although the pre-scheduled nature via a 10b5-1 plan mitigates immediate concerns about management's confidence.

Negatives

• Chairman and CEO Patrizio Vinciarelli sold 40,900 shares of common stock.
• Insider selling, even if pre-scheduled, can sometimes be perceived negatively by the market as it reduces management's direct equity stake.

Future Outlook

This Form 4 filing does not contain any forward-looking statements or guidance regarding Vicor Corporation's future outlook.

Industry Context

StockSavvy.ai notes that insider selling, even under a pre-arranged 10b5-1 plan, is a routine disclosure in the market. While it doesn't necessarily signal a negative outlook for the company, it's a common practice for executives to diversify their holdings or manage liquidity.

Related Party Transactions

• 171,125 shares are indirectly held by Patrizio Vinciarelli as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of his child.

Stakeholder Impact

• Shareholders may interpret the insider sale as a signal, potentially leading to short-term price fluctuations, though the 10b5-1 plan suggests a pre-planned, non-discretionary sale.

Key Dates

Recommendation

The filing reports a pre-scheduled insider sale by the CEO and 10% owner. While insider selling can sometimes be a negative signal, the execution under a Rule 10b5-1 plan adopted months prior suggests a planned diversification or liquidity event rather than a reaction to new, adverse information. Without additional context on company performance or market conditions, a 'hold' recommendation is appropriate, advising investors to monitor future company developments and broader market trends.

Keywords

Vicor Corporation, VICR, Patrizio Vinciarelli, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, CEO, Director, 10% Owner