Michael Louis Battles, CO-CEO at CLEAN HARBORS INC (CLH), bought 2,000 shares at $233.50 ($467K) on 2025-08-01, disclosed to the SEC on 2025-08-04.
Seasonal purchase ($467k) by CO-CEO — this insider has traded CLH in August in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| Filing → |
| CLH | SELL | 2023-07-06 | $2.1M | — | Filing → |
| CLH | SELL | 2023-03-17 | $171K | — | Filing → |
| CLH | BUY | 2022-05-12 | $177K | — | Filing → |