---
schema_version: "secwatch.filing_event.v1"
accession: "0000911177-26-000011"
form_type: "8-K"
ticker: "CWST"
cik: "0000911177"
company_name: "CASELLA WASTE SYSTEMS INC"
filed_at: "2026-03-10T23:59:59+00:00"
generated_at: "2026-05-15T17:24:24.837622+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Casella Waste COO Sean Steves resigns, effective March 20, 2026

## Summary
- Sean Steves notified company on March 6 of resignation as SVP & COO of Solid Waste Operations.
- Resignation effective March 20, 2026; he is leaving for opportunities outside waste/recycling.
- No disagreement with company operations, policies, or practices cited.
- Company has initiated search for next COO of Solid Waste Operations.

## SEC filing metadata
- accession: 0000911177-26-000011
- form_type: 8-K
- ticker: CWST
- cik: 0000911177
- company_name: CASELLA WASTE SYSTEMS INC
- filed_at: 2026-03-10T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/911177/000091117726000011/0000911177-26-000011-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/911177/000091117726000011/cwst-20260306.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000911177-26-000011
- JSON: https://secwatch.observer/filing/0000911177-26-000011.json
- Plain text: https://secwatch.observer/filing/0000911177-26-000011.txt

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