Eric W. Gerstenberg, Chief Operating Officer at CLEAN HARBORS INC (CLH), sold 10,286 shares at $53.04 ($546K) on 2017-12-26, disclosed to the SEC on 2017-12-27.
Seasonal sale ($546k) by Chief Operating Officer — this insider has traded CLH in December in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $53.04 | 5,143 | $273K | 50.0% |
| 2 | $53.04 | 5,143 | $273K | 50.0% |
| Total | $53.04 avg | 10,286 | $546K | 100% |
| Filing → |
| CLH | SELL | 2026-03-19 | $293K | — | Filing → |
| CLH | SELL | 2025-12-17 | $290K | — | Filing → |
| CLH | SELL | 2025-06-09 | $3.6M | — | Filing → |