Clean Harbors Inc
CLHNYSECIK 822818UtilitiesFiscal year ends Dec 31
Reports and events: 278 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-0517:06 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000042 |
| 2026-09-1811:57 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000040 |
| 2026-08-1212:26 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000037 |
| 2026-07-2910:56 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0000822818-26-000034 |
| 2026-07-2908:07 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-26-000031 |
| 2026-05-2016:41 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000822818-26-000028 |
| 2026-05-2016:34 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000822818-26-000027 |
| 2026-05-1410:55 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000024 |
| 2026-05-0610:55 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0000822818-26-000020 |
| 2026-05-0608:12 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-26-000017 |
| 2026-04-1014:52 ET | DEF 14A | Proxy statementPeriod 2026-05-20 | 0000822818-26-000013 |
| 2026-02-1813:02 ET | 10-K | Annual reportPeriod 2025-12-31 | 0000822818-26-000009 |
| 2026-02-1808:59 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-26-000004 |
| 2025-10-2910:58 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0000822818-25-000040 |
| 2025-10-2907:42 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-25-000038 |
| 2025-10-1014:00 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000822818-25-000036 |
| 2025-09-2619:20 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-25-000034 |
| 2025-07-3011:10 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0000822818-25-000030 |
| 2025-07-3007:45 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-25-000028 |
| 2025-05-2115:09 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000822818-25-000023 |
| 2025-04-3010:53 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0000822818-25-000019 |
| 2025-04-3007:37 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-25-000017 |
| 2025-04-1111:03 ET | DEF 14A | Proxy statementPeriod 2025-05-21 | 0000822818-25-000011 |
| 2025-02-1914:04 ET | 10-K | Annual reportPeriod 2024-12-31 | 0000822818-25-000007 |
| 2025-02-1909:10 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-25-000004 |
| 2024-10-3010:33 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0000822818-24-000045 |
| 2024-10-3008:17 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-24-000043 |
| 2024-10-1114:29 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000822818-24-000040 |
| 2024-09-0308:48 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000822818-24-000037 |
| 2024-07-3110:11 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0000822818-24-000035 |
| 2024-07-3107:55 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-24-000032 |
| 2024-07-0214:59 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000822818-24-000028 |
| 2024-05-2312:44 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000822818-24-000023 |
| 2024-05-0110:26 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0000822818-24-000021 |
| 2024-05-0108:28 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-24-000019 |
| 2024-04-1014:40 ET | DEF 14A | Proxy statementPeriod 2024-05-22 | 0000822818-24-000015 |
| 2024-03-2515:54 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-24-000011 |
| 2024-02-2111:39 ET | 10-K | Annual reportPeriod 2023-12-31 | 0000822818-24-000008 |
| 2024-02-2108:21 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-24-000005 |
| 2024-02-0609:13 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-24-000002 |
| 2023-12-2809:38 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000822818-23-000053 |
| 2023-12-0709:08 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-23-000050 |
| 2023-11-0111:32 ET | 10-Q | Quarterly reportPeriod 2023-09-30 | 0000822818-23-000047 |
| 2023-11-0107:59 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-23-000045 |
| 2023-08-0211:05 ET | 10-Q | Quarterly reportPeriod 2023-06-30 | 0000822818-23-000040 |
| 2023-08-0207:50 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-23-000038 |
| 2023-05-2413:55 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000822818-23-000035 |
| 2023-05-0311:01 ET | 10-Q | Quarterly reportPeriod 2023-03-31 | 0000822818-23-000033 |
| 2023-05-0307:55 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-23-000031 |
| 2023-04-1315:22 ET | DEF 14A | Proxy statement | 0000822818-23-000025 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 28, 2026, 08:18 ET. Listed shows no prices and gives no investment advice.