---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-010177"
form_type: "8-K"
ticker: "BUKS"
cik: "0000015847"
company_name: "BUTLER NATIONAL CORP"
filed_at: "2022-04-29T23:59:59+00:00"
generated_at: "2026-06-26T02:37:37.165323+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Director Michael J. Tamburelli resigns from Butler National Board

## Summary
- Michael J. Tamburelli resigned from the Board of Directors effective April 29, 2022.
- Resignation is not due to any disagreement with the company's operations, policies, or practices.
- No replacement announced; board size effectively reduced.

## SEC filing metadata
- accession: 0001437749-22-010177
- form_type: 8-K
- ticker: BUKS
- cik: 0000015847
- company_name: BUTLER NATIONAL CORP
- filed_at: 2022-04-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/15847/000143774922010177/0001437749-22-010177-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/15847/000143774922010177/buks20220429_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-010177
- JSON: https://secwatch.observer/filing/0001437749-22-010177.json
- Plain text: https://secwatch.observer/filing/0001437749-22-010177.txt

## Key facts
- Executive change
  Michael J. Tamburelli resigned as Board of Directors at BUTLER NATIONAL CORP.
  - Action: resigned
  - Role: Board of Directors
  source text: On April 28, 2022, Michael J. Tamburelli notified Butler National Corporation (“Company”) of his resignation from the Board of Directors (“Board”), effective April 29, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/15847/000143774922010177/0001437749-22-010177-index.htm

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