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Insider Trading March 12, 2026

Vicor Chairman Disposes $8.87 Million in Shares Under 10b5-1 Plan

Patrizio Vinciarelli sold nearly 50,000 shares on March 11, 2026 as InvestingPro flags potential overvaluation

By Jordan Park VICR
Vicor Chairman Disposes $8.87 Million in Shares Under 10b5-1 Plan
VICR

Patrizio Vinciarelli, Vicor Corp's chairman and CEO, sold 49,830 shares on March 11, 2026 under a pre-established Rule 10b5-1 plan. The transactions, executed at weighted average prices between $168.1244 and $180.171, totaled $8,870,434. The stock has returned 235% over the past year, while InvestingPro analysis suggests the shares may be overvalued at current levels. Following the sales Vinciarelli directly holds 9,408,163 shares and indirectly holds 171,125 shares in trust.

Key Points

  • Vicor chairman and CEO Patrizio Vinciarelli sold 49,830 shares on March 11, 2026 for $8,870,434, at weighted average prices between $168.1244 and $180.171.
  • The transactions were executed under a Rule 10b5-1 trading plan adopted on November 3, 2025; after the sales Vinciarelli directly owns 9,408,163 shares and indirectly owns 171,125 shares held in trust.
  • The stock has returned 235% over the prior year, while InvestingPro analysis indicates the shares may be overvalued at current levels, prompting investors to review valuation materials such as the Pro Research Report for VICR.

Patrizio Vinciarelli, who serves as chairman and chief executive officer of Vicor Corp (NASDAQ:VICR), completed a sequence of share disposals on March 11, 2026 that amounted to 49,830 common shares. The transactions were carried out at weighted average prices ranging from $168.1244 to $180.171 and produced a combined proceeds figure of $8,870,434.

The stock has appreciated strongly over the prior 12 months, delivering a 235% return. Alongside the disclosure of Vinciarelli's sales, InvestingPro analysis is cited as indicating the stock may be overvalued at current price levels.

The sales were executed pursuant to a Rule 10b5-1 trading plan that Vinciarelli adopted on November 3, 2025. Such plans authorize pre-specified transactions that can be carried out according to preset parameters; in this case the plan governed the March 11 trades. After the reported disposals, Vinciarelli directly owns 9,408,163 shares of Vicor Corp. In addition to his direct holdings, he indirectly owns 171,125 shares held in trust.

For investors seeking additional context on Vicor's valuation, the filing references a Pro Research Report for VICR, which includes 17 InvestingPro Tips. That resource is identified as a place to obtain deeper analysis of the company's valuation metrics and related commentary.

What happened

  • On March 11, 2026, Patrizio Vinciarelli sold 49,830 shares of Vicor common stock.
  • Sale prices were executed at weighted averages between $168.1244 and $180.171, totaling $8,870,434.
  • The transactions were performed under a Rule 10b5-1 trading plan adopted November 3, 2025.

Holdings after the transaction

  • Direct ownership: 9,408,163 shares.
  • Indirect ownership (held in trust): 171,125 shares.

Context and investor guidance

The disclosure highlights both the sizeable one-year share-price appreciation - a reported 235% gain - and an InvestingPro assessment that the stock may currently be overvalued. Investors interested in granular valuation inputs and the additional 17 InvestingPro Tips are directed to the Pro Research Report for VICR for further detail.

Note on interpretation

The filing states the sales were carried out through a pre-established Rule 10b5-1 plan. The presence of such a plan is an explicit fact in the disclosure and may be relevant to how market participants interpret the timing and motivation of the trades.

Risks

  • Valuation uncertainty: InvestingPro analysis suggests the stock may be overvalued at current levels, which could affect investor sentiment and market pricing.
  • Interpretive limitations: The sale was executed under a Rule 10b5-1 plan adopted on November 3, 2025, which constrains conclusions that can be drawn about the timing and intent behind the trades.
  • Market reaction risk: Large insider sales, even when pre-planned, can influence short-term market dynamics and investor perception of the company’s equity value.

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