VINCIARELLI PATRIZIO 4

What Happened
Patrizio Vinciarelli, a reported 10% owner of Vicor Corporation (VICR), sold a total of 23,179 shares in open-market transactions on March 24, 2026, generating roughly $4.17 million in proceeds. The reported lots were: 7,900 shares at $179.00 (proceeds $1,414,100), 10,000 shares at a weighted average $180.10 (proceeds $1,800,986), and 5,279 shares at a weighted average $181.00 (proceeds $955,510). These were disposals (sales), not purchases.

Key Details

• Transaction date: March 24, 2026; Form filed March 25, 2026 (timely filing).
• Lots & prices: 7,900 @ $179.00; 10,000 @ $180.10 (weighted avg; range $180.00–$180.31); 5,279 @ $181.00 (weighted avg; range $181.00–$181.04).
• Total shares sold: 23,179; total reported proceeds ≈ $4,170,596.
• Shares held after the transactions: Not provided in the supplied filing excerpt.
• Notable footnotes: Shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust (for the benefit of his child). At least one sale was executed pursuant to a Rule 10b5-1 trading plan adopted Nov 3, 2025. Several price footnotes note weighted-average reporting and provide price ranges for the multiple trades.
• Filing timeliness: Report appears timely (filed the next day).

Context
This transaction was a sale by a 10% owner acting through a trust and under an established 10b5-1 plan for at least part of the activity. Sales by large shareholders can be routine (portfolio rebalancing, trust needs, etc.) and do not by themselves indicate management sentiment about the company.