CLH ▲ +0.6% - Clean Harbors, Inc. $CLH - Clean Harbors Announces $600 Million Senior Notes Offering Clean Harbors announced a $600 million senior notes offering, a debt financing move that helped lift shares 0.6% today. The company's decision to raise capital through this fixed-income offering may signal confidence in its financial position or plans for growth, deployment of capital, or debt refinancing. 17-SEP-2026 08:23 AM ET