# Casella Waste Systems Inc: filings

CWST · Nasdaq · CIK 911177 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/cwst.md) · [Financials](/companies/cwst/financials.md) · [Filings](/companies/cwst/filings.md) · [Insiders](/companies/cwst/insiders.md)

## Reports and events: 343 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 654, 8-K 237, 144 62, SC 13G/A 58, 10-Q 53, DEFA14A 50, UPLOAD 24, CORRESP 20, SC 13G 19, 3 18, 10-K 17, DEF 14A 17, DFAN14A 17, 4/A 15, 424B5 12, 8-K/A 9, ARS 9, 5 8, S-8 6, SC 13D/A 6, SCHEDULE 13G/A 6, EFFECT 5, SCHEDULE 13G 4, 10-K/A 3, 3/A 3, S-3 3, S-3ASR 3, S-4/A 3, 424B3 2, CT ORDER 2, DEFC14A 2, PRE 14A 2, PREC14A 2, PRRN14A 2, S-3/A 2, S-4 2, 10-KT 1, 10-KT/A 1, 144/A 1, 424B2 1, D 1, FWP 1, PRER14A 1, SC 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-01 | 12:21 ET | [8-K](/filings/0000911177-26-000052.md) | 7.01 Regulation FD disclosure | 0000911177-26-000052 |
| 2026-08-07 | 20:13 ET | [10-Q](/filings/0000911177-26-000049.md) | Quarterly report, period 2026-06-30 | 0000911177-26-000049 |
| 2026-08-06 | 20:12 ET | [8-K](/filings/0000911177-26-000041.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-26-000041 |
| 2026-07-20 | 21:19 ET | [8-K/A](/filings/0000911177-26-000038.md) | 5.02 Departure or appointment of officers or directors | 0000911177-26-000038 |
| 2026-07-01 | 12:27 ET | [8-K](/filings/0000911177-26-000035.md) | 5.02 Departure or appointment of officers or directors | 0000911177-26-000035 |
| 2026-06-08 | 20:56 ET | [8-K](/filings/0000911177-26-000033.md) | 5.07 Shareholder vote results | 0000911177-26-000033 |
| 2026-06-01 | 20:49 ET | [8-K](/filings/0000911177-26-000030.md) | 8.01 Other events | 0000911177-26-000030 |
| 2026-05-27 | 16:50 ET | [8-K](/filings/0000911177-26-000028.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-26-000028 |
| 2026-05-11 | 21:04 ET | [8-K](/filings/0000911177-26-000024.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-26-000024 |
| 2026-05-01 | 20:33 ET | [10-Q](/filings/0000911177-26-000021.md) | Quarterly report, period 2026-03-31 | 0000911177-26-000021 |
| 2026-04-30 | 20:13 ET | [8-K](/filings/0000911177-26-000018.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-26-000018 |
| 2026-04-22 | 20:43 ET | [8-K](/filings/0000911177-26-000015.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000911177-26-000015 |
| 2026-04-17 | 20:15 ET | [DEF 14A](/filings/0001193125-26-161565.md) | Proxy statement, period 2026-06-04 | 0001193125-26-161565 |
| 2026-03-10 | 12:45 ET | [8-K](/filings/0000911177-26-000011.md) | 5.02 Departure or appointment of officers or directors | 0000911177-26-000011 |
| 2026-02-20 | 21:24 ET | [10-K](/filings/0000911177-26-000008.md) | Annual report, period 2025-12-31 | 0000911177-26-000008 |
| 2026-02-19 | 21:16 ET | [8-K](/filings/0000911177-26-000006.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-26-000006 |
| 2025-10-31 | 20:19 ET | [10-Q](/filings/0000911177-25-000125.md) | Quarterly report, period 2025-09-30 | 0000911177-25-000125 |
| 2025-10-30 | 20:10 ET | [8-K](/filings/0000911177-25-000123.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-25-000123 |
| 2025-09-02 | 20:23 ET | [8-K](/filings/0000911177-25-000120.md) | 8.01 Other events | 0000911177-25-000120 |
| 2025-08-28 | 18:51 ET | [8-K](/filings/0000911177-25-000118.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-25-000118 |
| 2025-08-18 | 20:59 ET | [8-K](/filings/0000911177-25-000115.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-25-000115 |
| 2025-08-06 | 20:30 ET | [8-K](/filings/0001628280-25-038371.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-038371 |
| 2025-08-01 | 20:04 ET | [8-K](/filings/0001628280-25-037228.md) | 8.01 Other events | 0001628280-25-037228 |
| 2025-08-01 | 11:00 ET | [8-K](/filings/0001628280-25-037133.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-037133 |
| 2025-07-31 | 20:06 ET | [10-Q](/filings/0001628280-25-036993.md) | Quarterly report, period 2025-06-30 | 0001628280-25-036993 |
| 2025-07-31 | 20:03 ET | [8-K](/filings/0001628280-25-036991.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-036991 |
| 2025-07-17 | 20:08 ET | [8-K](/filings/0001628280-25-035205.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-035205 |
| 2025-06-06 | 19:49 ET | [8-K](/filings/0000911177-25-000092.md) | 5.07 Shareholder vote results | 0000911177-25-000092 |
| 2025-05-02 | 20:02 ET | [10-Q](/filings/0000911177-25-000082.md) | Quarterly report, period 2025-03-31 | 0000911177-25-000082 |
| 2025-05-01 | 20:36 ET | [8-K](/filings/0000911177-25-000079.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-25-000079 |
| 2025-04-18 | 20:18 ET | [DEF 14A](/filings/0001193125-25-085775.md) | Proxy statement, period 2025-06-05 | 0001193125-25-085775 |
| 2025-03-11 | 20:26 ET | [8-K](/filings/0000911177-25-000046.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000911177-25-000046 |
| 2025-03-06 | 19:13 ET | [8-K](/filings/0000911177-25-000043.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-25-000043 |
| 2025-02-28 | 21:09 ET | [8-K](/filings/0000911177-25-000013.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-25-000013 |
| 2025-02-18 | 21:22 ET | [10-K](/filings/0000911177-25-000010.md) | Annual report, period 2024-12-31 | 0000911177-25-000010 |
| 2025-02-12 | 21:22 ET | [8-K](/filings/0000911177-25-000005.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-25-000005 |
| 2024-12-23 | 21:31 ET | [8-K](/filings/0000911177-24-000129.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000911177-24-000129 |
| 2024-12-17 | 20:06 ET | [8-K](/filings/0000911177-24-000124.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-24-000124 |
| 2024-12-10 | 21:27 ET | [8-K](/filings/0000911177-24-000120.md) | 8.01 Other events | 0000911177-24-000120 |
| 2024-11-21 | 21:10 ET | [8-K](/filings/0000911177-24-000112.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000911177-24-000112 |
| 2024-10-31 | 20:31 ET | [10-Q](/filings/0000911177-24-000090.md) | Quarterly report, period 2024-09-30 | 0000911177-24-000090 |
| 2024-10-30 | 20:27 ET | [8-K](/filings/0000911177-24-000088.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-24-000088 |
| 2024-09-30 | 12:09 ET | [8-K](/filings/0001193125-24-228456.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-228456 |
| 2024-09-18 | 20:11 ET | [8-K](/filings/0001193125-24-221391.md) | 1.01 Entry into a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-221391 |
| 2024-09-06 | 20:43 ET | [8-K](/filings/0000911177-24-000084.md) | 8.01 Other events | 0000911177-24-000084 |
| 2024-08-02 | 20:32 ET | [10-Q](/filings/0000911177-24-000079.md) | Quarterly report, period 2024-06-30 | 0000911177-24-000079 |
| 2024-08-01 | 20:46 ET | [8-K](/filings/0000911177-24-000076.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000911177-24-000076 |
| 2024-06-10 | 20:10 ET | [8-K](/filings/0000911177-24-000069.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000911177-24-000069 |
| 2024-04-26 | 20:39 ET | [10-Q](/filings/0000911177-24-000051.md) | Quarterly report, period 2024-03-31 | 0000911177-24-000051 |
| 2024-04-25 | 21:02 ET | [8-K](/filings/0000911177-24-000049.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000911177-24-000049 |

Page 1 of 7. [Older](/companies/cwst/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:00 ET. No prices; not investment advice.