Financial reports
ARS
2023 FY
Annual report to shareholders
15 Apr 24
10-K
2023 FY
Annual report
21 Feb 24
10-Q
2023 Q3
Quarterly report
1 Nov 23
10-Q
2023 Q2
Quarterly report
2 Aug 23
10-Q
2023 Q1
Quarterly report
3 May 23
ARS
2022 FY
Annual report to shareholders
13 Apr 23
10-K
2022 FY
Annual report
1 Mar 23
10-Q
2022 Q3
Quarterly report
2 Nov 22
10-Q
2022 Q2
Quarterly report
3 Aug 22
10-Q
2022 Q1
Quarterly report
4 May 22
Current reports
8-K
Clean Harbors Completes Acquisition of HEPACO
25 Mar 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
8-K
Clean Harbors Announces Third-Quarter 2023 Financial Results
1 Nov 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
8-K
Clean Harbors Announces First-Quarter 2023 Financial Results
3 May 23
8-K
Clean Harbors Introduces 5-Year Growth Targets at 2023
29 Mar 23
Registration and prospectus
S-8
Registration of securities for employees
3 Jun 20
424B3
Prospectus supplement
19 May 16
424B3
Prospectus supplement
15 Apr 13
424B2
Prospectus for primary offering
28 Nov 12
S-3ASR
Automatic shelf registration
26 Nov 12
424B5
Prospectus supplement for primary offering
26 Nov 12
424B3
Prospectus supplement
16 Oct 12
Proxies
DEFA14A
Additional proxy soliciting materials
10 Apr 24
DEF 14A
Definitive proxy
10 Apr 24
DEFA14A
Additional proxy soliciting materials
13 Apr 23
DEF 14A
Definitive proxy
13 Apr 23
DEFA14A
Additional proxy soliciting materials
14 Apr 22
DEF 14A
Definitive proxy
14 Apr 22
DEFA14A
Additional proxy soliciting materials
28 Apr 21
DEF 14A
Definitive proxy
23 Apr 21
PRE 14A
Preliminary proxy
13 Apr 21
DEFA14A
Additional proxy soliciting materials
24 Apr 20
Other
EFFECT
Notice of effectiveness
19 May 16
CORRESP
Correspondence with SEC
16 May 16
UPLOAD
Letter from SEC
16 May 16
CORRESP
Correspondence with SEC
16 May 16
UPLOAD
Letter from SEC
2 Jun 15
CORRESP
Correspondence with SEC
19 May 15
UPLOAD
Letter from SEC
11 May 15
EFFECT
Notice of effectiveness
15 Apr 13
UPLOAD
Letter from SEC
13 Mar 13
CORRESP
Correspondence with SEC
1 Mar 13
Ownership
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