John T. Preston, Director at CLEAN HARBORS INC (CLH), sold 3,750 shares at $134.90 ($506K) on 2023-03-02, disclosed to the SEC on 2023-03-03.
Open-market sale of $506k CLH by Director. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| CLH | SELL | 2022-08-09 | $242K | — | Filing → |
| CLH | SELL | 2021-03-02 | $1.0M | — | Filing → |
| CLH | SELL | 2018-03-08 | $255K | — | Filing → |