Founder Patrizio Vinciarelli Files Intent to Sell Additional $6.6M in Stock, Continuing Large-Scale Distribution
VICR has more than doubled off its 52-week low of $41.76.
Summary
Vicor's founder and officer, Patrizio Vinciarelli, filed a Form 144 to sell $6.6 million in common stock, continuing a pattern of significant insider sales that have totaled over $186 million in the last three months.
Key Events · Ownership and Investor Activity · VICR
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Key Insider Intent to Sell
Patrizio Vinciarelli, a founder, officer, and director, filed a Form 144 indicating intent to sell 20,000 shares of common stock, valued at approximately $6.66 million.
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Continuation of Significant Selling Trend
This filing extends a pattern of substantial insider selling by Vinciarelli, who has sold over $186 million in shares over the past three months, as noted in previous Form 144 filings.
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Ongoing Distribution by Founder
The proposed sale is part of an ongoing distribution by a key insider, contributing to a net insider selling of over $227 million across the company in the last 90 days.
Analysis · VICR · Manufacturing
This Form 144 indicates that Patrizio Vinciarelli, a founder, officer, and director, intends to sell an additional $6.6 million worth of Vicor stock. This filing is significant because it extends a pattern of substantial insider selling by Vinciarelli, who has already sold over $186 million in shares over the past three months. While these sales are often pre-planned under 10b5-1 arrangements, the continuous, large-scale distribution by a key insider can create an overhang on the stock and signals a lack of conviction, despite the company's recent strong financial performance.
How filings like this one have moved
In the 30 days to Sep 13, 2026, 29.5% of the 1672 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.22%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, VICR was trading at $330.48 on NASDAQ in the Manufacturing sector, with a market capitalization of approximately $15.1B. The 52-week trading range was $41.76 to $361.89. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.