VINCIARELLI PATRIZIO 4
4 · VICOR CORP · Filed Mar 26, 2026
Research Summary
AI-generated summary of this filing
Vicor (VICR) 10% Owner Patrizio Vinciarelli Sells 50,000 Shares
What Happened
Patrizio Vinciarelli, a 10% owner of Vicor Corporation (VICR), sold a total of 50,000 shares on March 25, 2026 in multiple open-market/private-sale transactions, generating approximately $9.18 million in proceeds. The sales were reported in five tranches: 7,350 shares at $181.57 ($1,334,538); 8,411 shares at $182.48 ($1,534,806); 18,960 shares at $183.74 ($3,483,659); 10,000 shares at $185.00 ($1,850,000); and 5,279 shares at $186.00 ($981,894).
Key Details
- Transaction date: March 25, 2026; Form 4 filed March 26, 2026 (filed the next day).
- Reported proceeds: ~ $9,184,897 total.
- Reported per-tranche weighted-average prices and ranges (per footnotes):
- 7,350 shares WAP $181.57 (trades ranged $181.05–$182.04).
- 8,411 shares WAP $182.48 (trades ranged $182.05–$183.00).
- 18,960 shares WAP $183.74 (trades ranged $183.09–$184.00).
- 10,000 shares WAP $185.00 (single price $185.00).
- 5,279 shares WAP $186.00 (single price $186.00).
- Ownership note: These shares are held by the reporting person as trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012 (for the benefit of his child).
- Trading plan: At least one sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.
- Shares owned after transaction: Not disclosed in the provided data.
- Filing timeliness: Report appears timely (filed one day after the reported transactions).
Context
This filing reports sales by a 10% owner — large-holder selling can be for many reasons (portfolio rebalancing, tax planning, trust distributions, etc.) and is not the same as executive insider purchases. The presence of a Rule 10b5-1 plan and trust ownership suggests these sales were at least partly pre-arranged and not necessarily an ad hoc signal about the company’s near-term prospects.
Insider Transaction Report
- Sale
Common Stock
[F2][F3]2026-03-25$181.57/sh−7,350$1,334,538→ 9,027,634 total - Sale
Common Stock
[F2][F4]2026-03-25$182.48/sh−8,411$1,534,806→ 9,019,223 total - Sale
Common Stock
[F2][F5]2026-03-25$183.74/sh−18,960$3,483,659→ 9,000,263 total - Sale
Common Stock
[F2][F6]2026-03-25$185.00/sh−10,000$1,850,000→ 8,990,263 total - Sale
Common Stock
[F2][F7]2026-03-25$186.00/sh−5,279$981,894→ 8,984,984 total
- 171,125(indirect: See Footnote)
Common Stock
[F1]
Footnotes (7)
- [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.
- [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 $181.0500 to $182.0400. 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 (7) 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 $182.0500 to $183.0000.
- [F5]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.0900 to $184.0000.
- [F6]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.0000 to $185.0000.
- [F7]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.0000 to $186.0000.