512 filings
Page 2 of 26
ARS
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13 Apr 23
Annual report to shareholders
3:32pm
DEFA14A
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13 Apr 23
Additional proxy soliciting materials
3:24pm
8-K
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29 Mar 23
Clean Harbors Introduces 5-Year Growth Targets at 2023
8:36am
8-K
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16 Mar 23
Clean Harbors Appoints Former Massachusetts Lieutenant
8:54am
8-K
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1 Mar 23
Clean Harbors Announces Executive Leadership Update
8:12am
8-K
ax54 15b2
1 Mar 23
Clean Harbors Announces Fourth-Quarter and Full-Year 2022 Financial Results
7:51am
8-K
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25 Jan 23
Entry into a Material Definitive Agreement
9:23am
8-K
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17 Jan 23
Clean Harbors Prices Offering of Senior Notes Due 2031
8:07pm
8-K
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17 Jan 23
Clean Harbors Announces $500 Million Senior Notes Offering
8:00am
8-K
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2 Nov 22
Clean Harbors Names Longtime Executives as Co-CEOs
7:54am
8-K
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2 Nov 22
Clean Harbors Announces Third-Quarter 2022 Financial Results
7:43am
8-K
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6 Sep 22
Clean Harbors Appoints Alison Quirk and Shelley Stewart Jr. to Board of Directors
12:13pm
8-K
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3 Aug 22
Clean Harbors Announces Record Second-Quarter 2022 Financial Results
8:49am
8-K
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25 May 22
Submission of Matters to a Vote of Security Holders
2:04pm
8-K
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4 May 22
Clean Harbors Announces First-Quarter 2022 Financial Results
9:10am