VINCIARELLI PATRIZIO 4

What Happened

• Patrizio Vinciarelli, a reported 10% owner of Vicor Corporation (VICR) and trustee of the Patrizio Vinciarelli Irrevocable Trust (for the benefit of his child), sold a total of 44,076 shares on March 20, 2026 in multiple open‑market transactions. The aggregate proceeds were approximately $7,928,260.
• The sales were executed in several lots with weighted‑average prices ranging from about $174.64 to $188.89 per share (individual lot details below). One or more of the sales were effected pursuant to a Rule 10b5‑1 trading plan adopted November 3, 2025.

Key Details

• Transaction date: March 20, 2026 (reported on Form 4 filed March 23, 2026).
• Lots (qty @ weighted‑avg price = proceeds):
  • 4,766 @ $174.64 = $832,332
  • 3,010 @ $176.00 = $529,763
  • 4,680 @ $177.87 = $832,436
  • 13,126 @ $178.75 = $2,346,308
  • 2,579 @ $179.72 = $463,510
  • 2,201 @ $180.62 = $397,549
  • 4,656 @ $181.71 = $846,060
  • 1,958 @ $182.64 = $357,600
  • 1,500 @ $184.67 = $277,002
  • 3,999 @ $186.27 = $744,899
  • 1,101 @ $187.43 = $206,356
  • 500 @ $188.89 = $94,445
• Total shares sold: 44,076; total proceeds: ~$7.93 million.
• Ownership after transaction: not specified in the summary data provided in this brief (check the filed Form 4 for post‑transaction holdings).
• Notable footnotes: shares are held by the reporting person as trustee of an irrevocable trust (for a child); several reported prices are weighted averages of multiple executions with price ranges noted in the filing; at least some sales were made under a Rule 10b5‑1 trading plan.
• Timeliness: Form 4 filed March 23, 2026 for transactions dated March 20, 2026 — the filing appears timely.

Context

• These are sales by a 10% owner/trustee rather than an ordinary employee buy signal; planned sales under a 10b5‑1 plan are common and often pre‑scheduled. Sales alone are not proof of a change in the company's prospects.
• The filing includes weighted‑average prices and ranges for multiple executions; the reporting person offers to provide detailed per‑price execution counts on request (as noted in the Form 4 footnotes).