516 filings
Page 15 of 26
UPLOAD
hbt5g112xdiwd
23 Feb 11
Letter from SEC
12:00am
8-K
ddjqb9071i2
23 Feb 11
Clean Harbors Reports Fourth-Quarter and Year-End 2010 Financial Results
12:00am
CORRESP
xzcz3s
14 Feb 11
Correspondence with SEC
12:00am
UPLOAD
zn5ijnrrmvpcb3vk
3 Feb 11
Letter from SEC
12:00am
8-K
9nw3z
28 Jan 11
Entry into a Material Definitive Agreement
12:00am
CORRESP
8yle hzzoi
20 Jan 11
Correspondence with SEC
12:00am
UPLOAD
064zbdrl 3b72b
6 Jan 11
Letter from SEC
12:00am
CORRESP
12bkqqqspavxauw
21 Dec 10
Correspondence with SEC
12:00am
UPLOAD
95qvc y4twq
7 Dec 10
Letter from SEC
12:00am
8-K
yzx6nl3u34xk7t
3 Nov 10
Clean Harbors Reports Record Third-Quarter
12:00am
8-K
qac6in kcej5
23 Sep 10
Departure of Directors or Certain Officers
12:00am
8-K
xyhcvzt93kg8927ij
4 Aug 10
Clean Harbors Reports Record Second-Quarter
12:00am
S-8
36xvsq7usv
19 May 10
Registration of securities for employees
12:00am
8-K
vo0sel kx15
14 May 10
Departure of Directors or Certain Officers
12:00am
8-K
5fp7jzs7jn
5 May 10
Clean Harbors Reports First-Quarter
12:00am
ARS
qgzku
12 Apr 10
Annual report to shareholders
12:00am