Form 4: Vicor CEO Patrizio Vinciarelli Executes Stock Sale

Vicor Corporation CEO Patrizio Vinciarelli sold 20,000 shares of common stock on June 4, 2026, pursuant to a pre-established Rule 10b5-1 trading plan.

Summary

• Patrizio Vinciarelli, Chairman and CEO of Vicor Corporation, sold a total of 20,000 shares of common stock.
• The transactions occurred on June 4, 2026, at weighted average prices ranging from $305.15 to $319.22 per share.
• The sales were executed under a Rule 10b5-1 trading plan adopted on February 26, 2026.
• Following these transactions, the CEO retains direct ownership of 8,728,090 shares of Vicor common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the sale was executed through a pre-planned, automated trading program.

Positives

• The sale was conducted via a pre-planned Rule 10b5-1 trading plan, which is a standard mechanism for executives to sell shares without triggering insider trading concerns.

Negatives

• The transaction represents a reduction in the CEO's direct equity stake in the company.

Risks

• Continued selling by major insiders can sometimes be perceived negatively by the market, though this specific sale is pre-planned.

Future Outlook

No forward-looking guidance or operational outlook was provided in this regulatory filing.

Industry Context

StockSavvy.ai notes that executive stock sales under 10b5-1 plans are routine corporate governance events and generally do not signal a change in company strategy or performance outlook.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for executives to manage personal liquidity while maintaining compliance with SEC regulations.

Related Party Transactions

• The reporting person holds 167,125 shares as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012.

Stakeholder Impact

• Minimal impact expected as the sale was pre-planned and represents a small fraction of the CEO's total holdings.

Key Dates

Keywords

Vicor, VICR, Insider Trading, Patrizio Vinciarelli, Form 4, Stock Sale, Rule 10b5-1