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CLH gains on strong waste-services demand, acquisitions and solid cash flow, while competition, currency risks and no dividend remain concerns.

The transaction was valued at $803,350. The sale reduced the Co-CEO's total direct equity holdings by 4%.

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Algert Global LLC acquired a new stake in Clean Harbors, Inc. (NYSE: CLH) during the undefined quarter, according to the company in its most recent filing with the SEC. The institutional investor acquired 9,250 shares of the business services provider's stock, valued at approximately $2,763,000. Other institutional investors also recently modified their holdings

Clean Harbors (CLH) reported earnings 30 days ago. What's next for the stock?

Callan Family Office LLC bought a new position in shares of Clean Harbors, Inc. (NYSE: CLH) during the undefined quarter, according to its most recent disclosure with the Securities and Exchange Commission. The firm bought 3,058 shares of the business services provider's stock, valued at approximately $914,000. A number of other hedge funds

BlackRock Inc. acquired a new position in shares of Clean Harbors, Inc. (NYSE: CLH) during the undefined quarter, according to its most recent filing with the SEC. The institutional investor acquired 5,076,220 shares of the business services provider's stock, valued at approximately $1,516,521,000. BlackRock Inc. owned 9.62% of Clean Harbors at the end