Patrizio Vinciarelli, who serves as both Chairman and Chief Executive Officer of Vicor Corp (NASDAQ: VICR), reported sales totaling 43,678 shares of the company's common stock on March 10, 2026, according to an SEC Form 4 filing. The share disposals were carried out at weighted average prices that ranged from $169.70 to $182.1746, producing an aggregate transaction value of approximately $8.8 million.
The disposition took place while the shares were trading not far from their 52-week peak of $209.53, and the filing notes that the stock had fallen by roughly 13% during the past week. The trades were executed in multiple transactions and were completed pursuant to a Rule 10b5-1 trading plan that Vinciarelli adopted on November 3, 2025.
After the reported sales, Vinciarelli's direct ownership in Vicor stands at 9,458,163 shares of common stock. He also retains indirect ownership of 171,125 shares that are held in trust.
Included in the filing is analysis from InvestingPro indicating that, on its metrics, the stock appears overvalued relative to its Fair Value. That analysis cites a price-to-earnings ratio of 67.9 for the shares. The InvestingPro platform is also referenced as offering 18 additional ProTips for investors seeking further detail on VICR.
Context summary: The transactions were processed under an established 10b5-1 plan and reflect a sizeable, planned sale by the company chairman. The filing records precise sale counts, price ranges, the plan adoption date, and the chairman's remaining direct and indirect holdings.
What is known from the filing:
- Sale date: March 10, 2026.
- Shares sold: 43,678.
- Weighted-average sale price range: $169.70 to $182.1746.
- Total proceeds: approximately $8.8 million.
- 10b5-1 plan adoption date: November 3, 2025.
- Director holdings after sale: 9,458,163 shares directly; 171,125 shares indirectly in trust.
- InvestingPro valuation note: P/E ratio of 67.9; 18 additional ProTips available on the platform.
The filing does not provide further commentary from company management or additional details about the allocation of proceeds. It also does not connect the sales to any operational developments within the company.