---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-272950"
form_type: "8-K"
ticker: "VICR"
cik: "0000751978"
company_name: "VICOR CORP"
filed_at: "2021-09-14T23:59:59+00:00"
generated_at: "2026-06-29T03:59:26.957108+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# CEO Patrizio Vinciarelli adopts 10b5-1 plan to sell up to 300,000 Vicor shares

## Summary
- Sales begin no earlier than Oct 4, 2021, at market prices between $131 and $160 per share.
- Plan allows up to 10,000 shares per $1 price increase, with a 300,000-share total cap.
- CEO holds ~20.8M shares total (common + Class B); plan represents less than 1% of outstanding.
- Plan complies with insider trading policies and Rule 10b5-1; sales will be publicly disclosed.

## SEC filing metadata
- accession: 0001193125-21-272950
- form_type: 8-K
- ticker: VICR
- cik: 0000751978
- company_name: VICOR CORP
- filed_at: 2021-09-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/751978/000119312521272950/0001193125-21-272950-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/751978/000119312521272950/d193953d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-272950
- JSON: https://secwatch.observer/filing/0001193125-21-272950.json
- Plain text: https://secwatch.observer/filing/0001193125-21-272950.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.