Latest filings (excl ownership)
10-Q
2024 Q1
Quarterly report
1 May 24
8-K
Clean Harbors Announces First-Quarter 2024 Financial Results
1 May 24
ARS
2023 FY
Annual report to shareholders
15 Apr 24
DEFA14A
Additional proxy soliciting materials
10 Apr 24
DEF 14A
Definitive proxy
10 Apr 24
8-K
Clean Harbors Completes Acquisition of HEPACO
25 Mar 24
10-K
2023 FY
Annual report
21 Feb 24
8-K
Clean Harbors Announces Fourth-Quarter and Full-Year 2023 Financial Results
21 Feb 24
8-K
Clean Harbors to Acquire HEPACO for $400 Million
6 Feb 24
8-K
Entry into a Material Definitive Agreement
28 Dec 23
8-K
Clean Harbors Announces $500 Million Expansion
7 Dec 23
10-Q
2023 Q3
Quarterly report
1 Nov 23
8-K
Clean Harbors Announces Third-Quarter 2023 Financial Results
1 Nov 23
10-Q
2023 Q2
Quarterly report
2 Aug 23
8-K
Clean Harbors Announces Second-Quarter 2023 Financial Results
2 Aug 23
8-K
Submission of Matters to a Vote of Security Holders
24 May 23
10-Q
2023 Q1
Quarterly report
3 May 23
8-K
Clean Harbors Announces First-Quarter 2023 Financial Results
3 May 23
ARS
2022 FY
Annual report to shareholders
13 Apr 23
DEFA14A
Additional proxy soliciting materials
13 Apr 23
DEF 14A
Definitive proxy
13 Apr 23
8-K
Clean Harbors Introduces 5-Year Growth Targets at 2023
29 Mar 23
8-K
Clean Harbors Appoints Former Massachusetts Lieutenant
16 Mar 23
10-K
2022 FY
Annual report
1 Mar 23
8-K
Clean Harbors Announces Executive Leadership Update
1 Mar 23
8-K
Clean Harbors Announces Fourth-Quarter and Full-Year 2022 Financial Results
1 Mar 23
8-K
Entry into a Material Definitive Agreement
25 Jan 23
8-K
Clean Harbors Prices Offering of Senior Notes Due 2031
17 Jan 23
8-K
Clean Harbors Announces $500 Million Senior Notes Offering
17 Jan 23
10-Q
2022 Q3
Quarterly report
2 Nov 22
8-K
Clean Harbors Names Longtime Executives as Co-CEOs
2 Nov 22
8-K
Clean Harbors Announces Third-Quarter 2022 Financial Results
2 Nov 22
8-K
Clean Harbors Appoints Alison Quirk and Shelley Stewart Jr. to Board of Directors
6 Sep 22
10-Q
2022 Q2
Quarterly report
3 Aug 22
8-K
Clean Harbors Announces Record Second-Quarter 2022 Financial Results
3 Aug 22
8-K
Submission of Matters to a Vote of Security Holders
25 May 22
10-Q
2022 Q1
Quarterly report
4 May 22
8-K
Clean Harbors Announces First-Quarter 2022 Financial Results
4 May 22
DEFA14A
Additional proxy soliciting materials
14 Apr 22
DEF 14A
Definitive proxy
14 Apr 22
Latest ownership filings
144
Notice of proposed sale of securities
3 May 24
4
Eric J. Dugas
3 Apr 24
4
Brian P Weber
28 Mar 24
144
Notice of proposed sale of securities
27 Mar 24
4/A
Sharon M. Gabriel
27 Mar 24
4
ALAN S MCKIM
19 Mar 24
4
Brian P Weber
19 Mar 24
4
Rebecca Underwood
19 Mar 24
4
Robert Speights
19 Mar 24
4
Robert W. Harrison
19 Mar 24
4
ERIC W GERSTENBERG
19 Mar 24
4
Sharon M. Gabriel
19 Mar 24
4
Eric J. Dugas
19 Mar 24
4
GEORGE L CURTIS
19 Mar 24
4
Michael Louis Battles
19 Mar 24
4
ERIC W GERSTENBERG
18 Mar 24
4
JOHN T PRESTON
15 Mar 24
144
Notice of proposed sale of securities
15 Mar 24
144
Notice of proposed sale of securities
14 Mar 24
4
ALAN S MCKIM
28 Feb 24
4
John R. Welch
27 Feb 24
144
Notice of proposed sale of securities
26 Feb 24
SC 13G/A
Select Equity Group, L.P.
14 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
SC 13G/A
WELLINGTON MANAGEMENT GROUP LLP
8 Feb 24
4
Robert W. Harrison
5 Feb 24
4
Brian P Weber
5 Feb 24
4
Rebecca Underwood
5 Feb 24
4
Robert Speights
5 Feb 24
4
Sharon M. Gabriel
5 Feb 24
4
GEORGE L CURTIS
5 Feb 24
4
Eric J. Dugas
5 Feb 24
4
ERIC W GERSTENBERG
5 Feb 24
4
Michael Louis Battles
5 Feb 24
SC 13G/A
BlackRock Inc.
25 Jan 24
4
Sharon M. Gabriel
3 Jan 24
4
ALAN S MCKIM
22 Dec 23
144
Notice of proposed sale of securities
20 Dec 23
4
Rebecca Underwood
19 Dec 23
4
ERIC W GERSTENBERG
19 Dec 23