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

Vicor Corporation's Chairman and CEO, Patrizio Vinciarelli, sold 44,958 shares of common stock on March 19, 2026, under a pre-arranged Rule 10b5-1 trading plan.

Summary

• Patrizio Vinciarelli, Chairman and CEO, Director, and 10% Owner of Vicor Corporation (VICR), reported sales of common stock.
• On March 19, 2026, a total of 44,958 shares of common stock were sold across multiple transactions.
• The sales were executed pursuant to a Rule 10b5-1 trading plan adopted by Mr. Vinciarelli on November 3, 2025.
• Weighted average sale prices ranged from $172.2553 to $191.4501 per share.
• Following these transactions, Mr. Vinciarelli directly beneficially owns 9,108,163 shares of common stock.
• An additional 171,125 shares are indirectly held by the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of his child.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event. While it is an insider sale by the CEO, the execution under a pre-arranged 10b5-1 plan suggests a planned liquidity event rather than a reaction to new negative information, thus mitigating significant negative sentiment.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned divestment rather than a reaction to recent company news.

Negatives

• A significant insider sale by the Chairman and CEO, Patrizio Vinciarelli, totaling 44,958 shares, could be perceived as a reduction in direct exposure to the company's stock.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that insider sales, even when executed under a 10b5-1 plan, are routinely monitored by investors for signals regarding management's confidence. While pre-planned sales mitigate immediate concerns, the overall trend of insider holdings in the power management industry, particularly among key executives, is often scrutinized for broader sentiment.

Related Party Transactions

• 171,125 shares are held indirectly by the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the reporting person's child.

Stakeholder Impact

• Shareholders may interpret the insider sale as a slight negative, though the 10b5-1 plan mitigates immediate concerns about management confidence. The reduction in direct beneficial ownership by a key executive could be noted.

Key Dates

Recommendation

The insider sales by the CEO, while substantial, were executed under a pre-arranged 10b5-1 plan, which typically signals a planned personal financial event rather than a reaction to new, undisclosed negative company information. This reduces the immediate negative implications often associated with insider selling. Without additional financial or operational context from other filings, these transactions alone do not warrant a change from a 'hold' position, as the market likely already accounts for such planned divestitures.

Keywords

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