# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000822818-26-000015
Filing Date
2026-04-10
Accepted
2026-04-10 14:55:36
Documents
6

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | e-proxynoticex2025.htm | DEFA14A | 12025
2 | IMAGE | cleanharborsinc_autoxregxn.jpg | GRAPHIC | 1675917
3 |  | cleanharborsinc_autoxregxna.jpg | GRAPHIC | 1246874
4 |  | clhlogoa.jpg | GRAPHIC | 28274
5 |  | proxycheckboximagea.jpg | GRAPHIC | 1445
6 |  | proxyuncheckimagea.jpg | GRAPHIC | 1059
| Complete submission text file | 0000822818-26-000015.txt |  | 4081661

Mailing Address 42 LONGWATER DRIVE NORWELL MA 02061-9149
Business Address 42 LONGWATER DRIVE P.O. BOX 9149 NORWELL MA 02061-9149 781-792-5000
CLEAN HARBORS INC (Filer) CIK: 0000822818 (see all company filings)

EIN.: 042997780 | State of Incorp.: MA | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-34223 | Film No.: 26854452
SIC: 4955 Hazardous Waste Management
(CF Office: 01 Energy & Transportation)