512 filings
S-8
CLH
Clean Harbors, Inc.
23 May 24
Registration of securities for employees
3:38pm
8-K
CLH
Clean Harbors, Inc.
23 May 24
Departure of Directors or Certain Officers
12:44pm
10-Q
2024 Q1
CLH
Clean Harbors, Inc.
Quarterly report
1 May 24
10:26am
8-K
CLH
Clean Harbors, Inc.
1 May 24
Clean Harbors Announces First-Quarter 2024 Financial Results
8:28am
ARS
2023 FY
CLH
Clean Harbors, Inc.
15 Apr 24
Annual report to shareholders
8:58am
DEFA14A
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10 Apr 24
Additional proxy soliciting materials
2:41pm
8-K
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25 Mar 24
Clean Harbors Completes Acquisition of HEPACO
3:54pm
8-K
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21 Feb 24
Clean Harbors Announces Fourth-Quarter and Full-Year 2023 Financial Results
8:21am
8-K
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6 Feb 24
Clean Harbors to Acquire HEPACO for $400 Million
9:13am
8-K
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28 Dec 23
Entry into a Material Definitive Agreement
9:38am
8-K
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7 Dec 23
Clean Harbors Announces $500 Million Expansion
9:08am
8-K
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1 Nov 23
Clean Harbors Announces Third-Quarter 2023 Financial Results
7:59am
8-K
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2 Aug 23
Clean Harbors Announces Second-Quarter 2023 Financial Results
7:50am
8-K
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24 May 23
Submission of Matters to a Vote of Security Holders
1:55pm
8-K
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3 May 23
Clean Harbors Announces First-Quarter 2023 Financial Results
7:55am