Casella Waste Systems Inc SEC filings CWST
Casella Waste Systems Inc has 1,004 filings in SEC EDGAR's recent list, going back to Jun 26, 2014. Its latest annual report, Form ARS, was filed on Apr 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 1, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 9, 2026 | — |
| 144 | Notice of proposed sale | Sep 3, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 26, 2026 |
| 144 | Notice of proposed sale | Aug 26, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Aug 13, 2026 |
| 144 | Notice of proposed sale | Aug 14, 2026 | — |
| 144 | Notice of proposed sale | Aug 13, 2026 | — |
| 144 | Notice of proposed sale | Aug 13, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 11, 2026 |
| 3 | Initial insider ownership | Jul 21, 2026 | Jul 20, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 9, 2026 | — |
| 4 | Insider transaction | Jun 10, 2026 | Jun 8, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4/A | Form 4/a | Jun 4, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | May 27, 2026 | May 26, 2026 |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 4 | Insider transaction | May 22, 2026 | May 19, 2026 |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| 144 | Notice of proposed sale | May 19, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 22, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 24, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 16, 2026 | Mar 12, 2026 |
| 3 | Initial insider ownership | Mar 16, 2026 | Mar 16, 2026 |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 144 | Notice of proposed sale | Mar 12, 2026 | — |
| 4 | Insider transaction | Mar 2, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 26, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 26, 2026 |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| 144 | Notice of proposed sale | Feb 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 7, 2026 | — |
| 4 | Insider transaction | Dec 9, 2025 | Dec 8, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 8, 2025 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 7, 2025 | Nov 5, 2025 |
| 4 | Insider transaction | Nov 6, 2025 | Nov 4, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 5, 2025 | Aug 4, 2025 |
| 144/A | Filing | Aug 4, 2025 | — |
| 144 | Notice of proposed sale | Aug 4, 2025 | — |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 5, 2025 |
| 4 | Insider transaction | Jun 4, 2025 | Jun 3, 2025 |
| 4 | Insider transaction | May 9, 2025 | May 8, 2025 |
| 144 | Notice of proposed sale | May 8, 2025 | — |
| 4 | Insider transaction | May 7, 2025 | May 6, 2025 |
| 144 | Notice of proposed sale | May 6, 2025 | — |
| 4 | Insider transaction | Apr 17, 2025 | Apr 16, 2025 |
| 144 | Notice of proposed sale | Apr 16, 2025 | — |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 4 | Insider transaction | Mar 14, 2025 | Mar 12, 2025 |
| 144 | Notice of proposed sale | Mar 13, 2025 | — |
| 144 | Notice of proposed sale | Mar 12, 2025 | — |
| 144 | Notice of proposed sale | Mar 12, 2025 | — |
| 144 | Notice of proposed sale | Mar 12, 2025 | — |
| 144 | Notice of proposed sale | Mar 12, 2025 | — |
| 4 | Insider transaction | Mar 12, 2025 | Mar 10, 2025 |
| 144 | Notice of proposed sale | Mar 10, 2025 | — |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 144 | Notice of proposed sale | Mar 3, 2025 | — |
| 4 | Insider transaction | Jan 10, 2025 | Nov 6, 2023 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 10, 2025 | — |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 4, 2024 | Dec 2, 2024 |
| 144 | Notice of proposed sale | Nov 25, 2024 | — |
| 4 | Insider transaction | Nov 25, 2024 | Nov 22, 2024 |
| 4 | Insider transaction | Nov 25, 2024 | Nov 25, 2024 |
| 144 | Notice of proposed sale | Nov 22, 2024 | — |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 144 | Notice of proposed sale | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 144 | Notice of proposed sale | Nov 12, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 12, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 6, 2024 |
| 4 | Insider transaction | Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 6, 2024 |
| 144 | Notice of proposed sale | Nov 6, 2024 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 4, 2024 |
| 144 | Notice of proposed sale | Nov 5, 2024 | — |
| 144 | Notice of proposed sale | Nov 4, 2024 | — |
| 4 | Insider transaction | Sep 3, 2024 | Sep 3, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 144 | Notice of proposed sale | Mar 13, 2024 | — |
| 144 | Notice of proposed sale | Mar 13, 2024 | — |
| 144 | Notice of proposed sale | Mar 13, 2024 | — |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 29, 2024 | Feb 27, 2024 |
| 144 | Notice of proposed sale | Feb 28, 2024 | — |
| 144 | Notice of proposed sale | Feb 28, 2024 | — |
| 144 | Notice of proposed sale | Feb 28, 2024 | — |
| 144 | Notice of proposed sale | Feb 28, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 5, 2024 | — |
| 4 | Insider transaction | Dec 14, 2023 | Dec 12, 2023 |
| 4 | Insider transaction | Nov 22, 2023 | Nov 20, 2023 |
| 4 | Insider transaction | Nov 8, 2023 | Nov 6, 2023 |
| 3 | Initial insider ownership | Nov 8, 2023 | Nov 6, 2023 |
| 4 | Insider transaction | Oct 3, 2023 | Sep 29, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Aug 24, 2023 | Aug 23, 2023 |
| 144 | Notice of proposed sale | Aug 23, 2023 | — |
| 4 | Insider transaction | Aug 17, 2023 | Aug 14, 2023 |
| 144 | Notice of proposed sale | Aug 11, 2023 | — |
| 4 | Insider transaction | Aug 11, 2023 | Aug 11, 2023 |
| 4 | Insider transaction | Aug 11, 2023 | Aug 10, 2023 |
| 144 | Notice of proposed sale | Aug 10, 2023 | — |
| 4 | Insider transaction | Aug 10, 2023 | Aug 8, 2023 |
| 144 | Notice of proposed sale | Aug 8, 2023 | — |
| 144 | Notice of proposed sale | Aug 8, 2023 | — |
| 4 | Insider transaction | Aug 4, 2023 | Aug 2, 2023 |
| 144 | Notice of proposed sale | Aug 3, 2023 | — |
| 144 | Notice of proposed sale | Aug 2, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2023 | — |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 2, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 15, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 15, 2023 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Refuse Systems (SIC 4953)
- Listed as
- CWST (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Rutland, VT
- SEC filer status
- Large accelerated filer
- SEC CIK
- 911177
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.