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

Vicor Corporation's Chairman and CEO, Patrizio Vinciarelli, sold a total of 21,900 shares of common stock in November and December 2025 under a pre-arranged Rule 10b5-1 trading plan.

Summary

• Patrizio Vinciarelli, Chairman and CEO of Vicor Corp, sold 21,900 shares of common stock.
• The sales occurred on November 12, 2025, December 10, 2025, and December 11, 2025.
• These transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on December 10, 2024.
• The shares were sold at prices ranging from $100.1818 to $102.0802 per share.
• Following these transactions, Patrizio Vinciarelli directly beneficially owns 9,828,363 shares of common stock.
• Additionally, 171,125 shares are indirectly beneficially owned by Mr. Vinciarelli as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of his child.

Sentiment

Score: 4

Explanation: The sale of shares by the Chairman and CEO, even under a pre-arranged 10b5-1 plan, can be interpreted as a slightly negative signal regarding management's near-term outlook on the stock price. However, the pre-planned nature mitigates the negative impact compared to an unplanned sale.

Negatives

• Chairman and CEO Patrizio Vinciarelli sold a significant number of shares (21,900) of company stock.
• While executed under a 10b5-1 plan, insider sales can sometimes be perceived as a lack of confidence in future stock price appreciation.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders: May interpret the insider sale as a signal regarding the company's future prospects or stock valuation, potentially leading to increased scrutiny or selling pressure.

Key Dates

Recommendation

While the Chairman and CEO sold a notable number of shares, the transaction was executed under a pre-arranged Rule 10b5-1 trading plan, which suggests a planned diversification or liquidity event rather than an immediate reaction to new negative information. Without additional context from financial reports or strategic updates, this Form 4 alone does not warrant a change from a 'hold' position, but it does warrant continued monitoring of future insider activity and company performance.

Keywords

Vicor Corporation, VICR, Patrizio Vinciarelli, Insider Sale, Form 4, SEC Filing, 10b5-1 Plan, Common Stock, Beneficial Ownership