Robert A. Johnston

President, Clean Harbors.

Companies

Clean HarborsPres.-Oil&Gas of Subsidiaries Apr 16, 2019 to Jan 13, 2021¹
Clean HarborsPresident Jan 26, 2018 to Apr 16, 2019²

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARClean Harbors, Pres.-Oil&Gas of Subsidiaries
2
SEC EDGARClean Harbors, President