Eric W. Gerstenberg, Chief Operating Officer at CLEAN HARBORS INC (CLH), sold 14,300 shares at $52.77 ($755K) on 2017-12-27, disclosed to the SEC on 2017-12-28.
Seasonal sale ($755k) 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 | $52.77 | 7,150 | $377K | 50.0% |
| 2 | $52.77 | 7,150 | $377K | 50.0% |
| Total | $52.77 avg | 14,300 | $755K | 100% |
| Filing → |
| CLH | SELL | 2026-03-19 | $293K | — | Filing → |
| CLH | SELL | 2025-12-17 | $290K | — | Filing → |
| CLH | SELL | 2025-06-09 | $3.6M | — | Filing → |