News Releases Keyword Search Year None 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Date Title September 17, 2026 Clean Harbors Prices Offering of Senior Notes Due 2034 September 17, 2026 Clean Harbors Announces $600 Million Senior Notes Offering August 12, 2026 Clean Harbors to Acquire EnviroServe for $470 Million July 29, 2026 Clean Harbors Announces Second-Quarter 2026 Financial Results July 16, 2026 Clean Harbors Appoints Robert Willett Chairman of the Board July 8, 2026 Clean Harbors to Announce Second-Quarter 2026 Financial Results on July 29 May 27, 2026 Clean Harbors to Participate in Upcoming Investor Conferences May 20, 2026 Clean Harbors Announces Retirement of Founder and Executive Chairman Alan S. McKim May 14, 2026 Clean Harbors Announces Acquisition of Terra Nova Solutions May 6, 2026 Clean Harbors Announces First-Quarter 2026 Financial Results April 23, 2026 Clean Harbors to Participate in 21st Annual Oppenheimer Industrial Growth Conference on May 7 April 15, 2026 Clean Harbors to Announce First-Quarter 2026 Financial Results on May 6 April 1, 2026 Clean Harbors Formally Releases PFAS Disposal and Treatment Guidance Standards to Assist Customers and Communities with Decision Making February 19, 2026 Clean Harbors to Participate in Raymond James Investor Conference on March 3 February 18, 2026 Clean Harbors Announces Fourth-Quarter and Full-Year 2025 Financial Results January 28, 2026 Clean Harbors to Announce Fourth-Quarter and Full-Year 2025 Financial Results on February 18 January 6, 2026 Clean Harbors to Participate in Upcoming Investor Conferences
