---
schema_version: "secwatch.filing_event.v1"
accession: "0000911177-26-000038"
form_type: "8-K/A"
ticker: "CWST"
cik: "0000911177"
company_name: "CASELLA WASTE SYSTEMS INC"
filed_at: "2026-07-20T21:19:32+00:00"
generated_at: "2026-07-20T21:20:04.189212+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Casella Waste Systems appoints Damian A. Ribar as EVP & COO with $500K base salary

## Summary
- Employment agreement effective July 20, 2026; annual base salary of $500,000.
- Bonus eligible up to 85% of base salary, payable in cash, stock options, RSUs, or PSUs.
- Severance upon termination without cause or for good reason includes base salary, target bonus, healthcare for one year, and accelerated equity vesting.
- Appointment previously announced July 1, 2026; this amendment provides compensation details.

## SEC filing metadata
- accession: 0000911177-26-000038
- form_type: 8-K/A
- ticker: CWST
- cik: 0000911177
- company_name: CASELLA WASTE SYSTEMS INC
- filed_at: 2026-07-20T21:19:32+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/911177/000091117726000038/0000911177-26-000038-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/911177/000091117726000038/cwst-20260626.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000911177-26-000038
- JSON: https://secwatch.observer/filing/0000911177-26-000038.json
- Plain text: https://secwatch.observer/filing/0000911177-26-000038.txt

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