---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-165383"
form_type: "8-K"
ticker: "CWST"
cik: "0000911177"
company_name: "CASELLA WASTE SYSTEMS INC"
filed_at: "2023-06-12T23:59:59+00:00"
generated_at: "2026-06-14T03:26:28.127838+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Casella Waste files preliminary prospectus for stock offering; updates GFL acquisition and FLSA litigation

## Summary
- Filed preliminary prospectus supplement for proposed offering of Class A common stock.
- GFL Environmental acquisition received HSR clearance; expected to close June 30, 2023.
- FLSA class action granted conditional certification; monetary damages not estimable.
- Acquired 54 solid waste businesses since 2018 with ~$303M annualized revenues.
- Twin Bridges and GFL acquisitions together expected to add ~$255M annualized revenues.

## SEC filing metadata
- accession: 0001193125-23-165383
- form_type: 8-K
- ticker: CWST
- cik: 0000911177
- company_name: CASELLA WASTE SYSTEMS INC
- filed_at: 2023-06-12T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/911177/000119312523165383/0001193125-23-165383-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/911177/000119312523165383/d435579d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-165383
- JSON: https://secwatch.observer/filing/0001193125-23-165383.json
- Plain text: https://secwatch.observer/filing/0001193125-23-165383.txt

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