Robert W. Harrison, EVP, EHS at CLEAN HARBORS INC (CLH), sold 122 shares at $166.86 ($20K) on 2023-12-01, disclosed to the SEC on 2023-12-05.
Open-market sale of $20k CLH by EVP, EHS. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.