VINCIARELLI PATRIZIO 4
4 · VICOR CORP · Filed Mar 11, 2026
Research Summary
AI-generated summary of this filing
Vicor (VICR) 10% Owner Patrizio Vinciarelli Sells 50,000 Shares
What Happened
Patrizio Vinciarelli, a reported 10% owner of Vicor Corporation (VICR), disposed of 50,000 shares in multiple open-market sales on March 9, 2026. The sales occurred across a series of transactions at per-share prices reported between roughly $158.61 and $170.20 (various weighted-average prices are shown for groups of trades), producing aggregate proceeds of approximately $8.21 million. The shares are held by Vinciarelli as Trustee of the Patrizio Vinciarelli Irrevocable Trust (dated 12/21/2012), set up for the benefit of his child.
Key Details
- Transaction date: March 9, 2026 (Form 4 filed March 11, 2026). Filing appears timely.
- Total shares sold: 50,000 shares across 12 reported sale line items.
- Aggregate proceeds: ~$8.21 million. Individual line prices ranged from $159.23 to $170.02 (some lines are weighted averages of multiple trade prices). Overall reported trade-price ranges across footnotes: ~$158.61 – $170.20.
- Notable footnotes: F1 — shares held in an irrevocable trust for a child; F2 — at least one sale was executed under a Rule 10b5-1 trading plan (adopted Nov 3, 2025); F3–F14 — many reported prices are weighted averages reflecting multiple transactions within stated price ranges.
- Shares owned after the transactions: not specified in the provided extract of the Form 4; see the full filing for post-transaction beneficial ownership details.
- Transaction type: Sales (S). Sales by insiders are often for personal or planning reasons; purchases are generally considered stronger signals of insider conviction.
Context
As a 10% owner, Vinciarelli is a large shareholder (not necessarily an executive), and these disposals may reflect portfolio management or trust needs rather than company-specific views. Several sales were executed under a 10b5-1 plan and reported as weighted-average prices across multiple trades; review the full Form 4 for the per-price breakdown if you need exact trade-level detail.
Insider Transaction Report
- Sale
Common Stock
[F2][F3]2026-03-09$159.23/sh−3,466$551,880→ 9,554,697 total - Sale
Common Stock
[F2][F4]2026-03-09$160.11/sh−6,840$1,095,152→ 9,547,857 total - Sale
Common Stock
[F2][F5]2026-03-09$161.14/sh−8,622$1,389,362→ 9,539,235 total - Sale
Common Stock
[F2][F6]2026-03-09$162.06/sh−2,622$424,933→ 9,536,613 total - Sale
Common Stock
[F2][F7]2026-03-09$163.24/sh−1,363$222,500→ 9,535,250 total - Sale
Common Stock
[F2][F8]2026-03-09$164.35/sh−3,718$611,064→ 9,531,532 total - Sale
Common Stock
[F2][F9]2026-03-09$165.18/sh−6,453$1,065,926→ 9,525,079 total - Sale
Common Stock
[F2][F10]2026-03-09$166.10/sh−3,046$505,938→ 9,522,033 total - Sale
Common Stock
[F2][F11]2026-03-09$167.31/sh−1,620$271,036→ 9,520,413 total - Sale
Common Stock
[F2][F12]2026-03-09$168.04/sh−600$100,825→ 9,519,813 total - Sale
Common Stock
[F2][F13]2026-03-09$169.16/sh−7,449$1,260,052→ 9,512,364 total - Sale
Common Stock
[F2][F14]2026-03-09$170.02/sh−4,201$714,267→ 9,508,163 total
- 171,125(indirect: See Footnote)
Common Stock
[F1]
Footnotes (14)
- [F1]These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the child of the reporting person.
- [F10]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.7200 to $166.5500.
- [F11]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.7400 to $167.7300.
- [F12]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.7400 to $168.6700.
- [F13]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.7400 to $169.7100.
- [F14]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.7700 to $170.2000.
- [F2]This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.
- [F3]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.6100to $159.5800. The reporting person undertakes to provide to Vicor Corporation, any security holder of Vicor Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (14) to this Form 4.
- [F4]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.6300 to $160.6000.
- [F5]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.6500 to $161.6400.
- [F6]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $161.6800 to $162.6700.
- [F7]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.6900 to $163.6600.
- [F8]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.6900 to $164.6700.
- [F9]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.6900 to $165.6800.