08:41 AM EDT, 08/12/2025 (MT Newswires) -- Clean Harbors ( CLH ) was Smart Insider's stock pick of the week after Co-Chief Executive Michael Battles purchased $467,000 worth of company shares at $233.50 apiece on Aug. 1, raising his ownership by 2%.

This was Battles' fifth purchase since joining the company in 2013, Smart Insider said in a Tuesday note, adding that each of his prior purchases was "well-timed."

The latest purchase exceeds all of Battles' prior purchases combined, marking a reversal from the $2.5 million stock sale at $246 apiece in September 2024, the note added.

Smart Insider ranked the stock +1, or strong positive signal, on Aug. 5.