WELLINGTON MANAGEMENT GROUP LLP - 31 Dec 2025 SCHEDULE 13G/A Report for Clean Harbors, Inc. Common Stock (CLH)

Filing Manager
WELLINGTON MANAGEMENT GROUP LLP
Reporting Manager
Wellington Management Group LLP
Security
Clean Harbors, Inc. Common Stock
Symbol
CLH
Shares outstanding
53,428,227 shares
Disclosed Ownership
5,182,538 shares
Ownership
9.7%
Form type
SCHEDULE 13G/A
Filing time
10 Feb 2026, 11:19:49 UTC
Date of event
31 Dec 2025
Previous filing
07 May 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Wellington Management Group LLP 9.7% 5,182,538 0 4,325,963 Taisia Lowe Regulatory Analyst
Wellington Group Holdings LLP 9.7% 5,182,538 0 4,325,963 Taisia Lowe Regulatory Analyst
Wellington Investment Advisors Holdings LLP 9.7% 5,182,538 0 4,325,963 Taisia Lowe Regulatory Analyst
Wellington Management Company LLP 7.9% 5,182,538 0 4,036,402 Taisia Lowe Regulatory Analyst