Welch John R.
Related Filers (1)
Ownership (14)
4
Thursday, 5/25/2023
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/26/2022
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/5/2022
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Monday, 8/9/2021
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Monday, 6/7/2021
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/5/2020
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
5
Friday, 2/14/2020
CLEAN HARBORS INC: Annual statement of changes in beneficial ownership of securities
4
Friday, 6/7/2019
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/7/2018
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Thursday, 6/8/2017
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/10/2016
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
4
Friday, 6/12/2015
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities
3
Thursday, 6/19/2014
CLEAN HARBORS INC: Initial statement of beneficial ownership of securities
4
Thursday, 6/19/2014
CLEAN HARBORS INC: Statement of changes in beneficial ownership of securities