TESTONI LOUIS L
Related Filers (1)
Ownership (16)
4
Monday, 5/8/2023
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 5/1/2023
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 5/5/2022
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 5/7/2021
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 5/7/2020
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 5/6/2019
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/9/2018
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 6/2/2017
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 5/24/2016
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 5/13/2016
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 5/15/2015
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 4/22/2015
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 5/12/2014
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 4/24/2014
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities
3
Monday, 5/13/2013
Koppers Holdings Inc.: Initial statement of beneficial ownership of securities
4
Monday, 5/13/2013
Koppers Holdings Inc.: Statement of changes in beneficial ownership of securities