CLH Insider Trading Activity and SEC Form 4 Filings
CLH insider trading summary
Over the past 12 months, insiders at Clean Harbors Inc (CLH) reported 16 sales worth $65.2M by 9 insiders and 2 open-market purchases worth $175K by 1 insider on SEC Form 4. Net insider selling was $65.0M.
Latest CLH insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Oct 29, 2026 | Karyn Polito | Insider | Buy | $39K (125 @ $314.83) |
| Aug 14, 2026 | Eric W Gerstenberg | Co-Ceo | Sell | $803K (2,500 @ $321.34) |
| Aug 3, 2026 | Andrea Robertson | Insider | Sell | $248K (789 @ $314.01) |
| May 26, 2026 | Lauren States | Insider | Sell | $226K (789 @ $286.19) |
| May 11, 2026 | Karyn Polito | Insider | Buy | $136K (460 @ $295.13) |
| Mar 18, 2026 | Eric W Gerstenberg | Co-Ceo | Sell | $293K (1,000 @ $293.00) |
| Mar 18, 2026 | Eric W Gerstenberg | Co-Ceo | Sell | $293K (1,000 @ $293.00) |
| Mar 18, 2026 | Marcy L. Reed | Insider | Sell | $241K (836 @ $287.94) |
| Mar 17, 2026 | Brian P Weber | EVP (chesi) | Sell | $1.4M (4,683 @ $293.39) |
| Mar 4, 2026 | Alan S McKim | Exec Chair, CTO. | Sell | $29.3M (100,000 @ $292.65) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.