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Clean Harbors Inc (CLH)
NYSE: CLH · Real-Time Price · USD
Industrials · Waste Management
319.98+1.21 (+0.38%)
Insider Score
––Not scored
CLH Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
CLH Stock Insider Trading Activity
CLH stock’s insider trading shows 3 sales on the open market for an estimated $1.28M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| GERSTENBERG ERIC W CEO | Sell | 2,500 | $321.34 | $803.35K | 4.2% | 56,793 | Aug 14, 2026 | — | Form 4 |
| Robertson Andrea Director | Sell | 789 | $314.01 | $247.75K | 8.1% | 8,979 | Aug 3, 2026 | — | Form 4 |
| MCKIM ALAN S Director | Tax withheld | 1,265 | $310.58 | $392.88K | 4.0% | 30,154 | Jul 17, 2026 | — | Form 4 |
| Geer Charles H. II Other | Tax withheld | 40 | $290.74 | $11.63K | 0.4% | 10,799 | Jul 1, 2026 | — | Form 4 |
| Dugas Eric J. CFO | Tax withheld | 447 | $290.74 | $129.96K | 2.5% | 17,620 | Jul 1, 2026 | — | Form 4 |
| GERSTENBERG ERIC W CEO | Tax withheld | 564 | $290.74 | $163.98K | 1.5% | 38,313 | Jul 1, 2026 | — | Form 4 |
| MCKIM ALAN S Director | Tax withheld | 1,343 | $290.74 | $390.46K | 4.1% | 31,419 | Jul 1, 2026 | — | Form 4 |
| Battles Michael Louis CEO | Tax withheld | 1,032 | $290.74 | $300.04K | 1.1% | 94,355 | Jul 1, 2026 | — | Form 4 |
| CURTIS GEORGE L Other | Tax withheld | 1,757 | $290.74 | $510.83K | 3.8% | 44,291 | Jul 1, 2026 | — | Form 4 |
| Gabriel Sharon M. Other | Tax withheld | 359 | $290.74 | $104.38K | 1.7% | 20,706 | Jul 1, 2026 | — | Form 4 |
| Weber Brian P Other | Tax withheld | 814 | $290.74 | $236.66K | 1.7% | 47,914 | Jul 1, 2026 | — | Form 4 |
| Dugas Eric J. CFO | Tax withheld | 447 | $290.74 | $129.96K | 3.2% | 13,532 | Jul 1, 2026 | — | Form 4 |
| GERSTENBERG ERIC W CEO | Tax withheld | 564 | $290.74 | $163.98K | 0.9% | 59,293 | Jul 1, 2026 | — | Form 4 |
| Underwood Rebecca Other | Tax withheld | 311 | $290.74 | $90.42K | 1.7% | 18,373 | Jul 1, 2026 | — | Form 4 |
| Diderich Jeroen Other | Tax withheld | 1,717 | $281.00 | $482.48K | 9.6% | 16,152 | Jun 1, 2026 | — | Form 4 |
| States Lauren Director | Sell | 789 | $286.19 | $225.80K | 6.5% | 11,359 | May 26, 2026 | — | Form 4 |
| Robertson Andrea Director | Award | 652 | — | — | 7.2% | 9,768 | May 20, 2026 | — | Form 4 |
| Reed Marcy L. Director | Award | 652 | — | — | 12.8% | 5,733 | May 20, 2026 | — | Form 4 |
| Quirk Alison A. Director | Award | 652 | — | — | 21.9% | 3,630 | May 20, 2026 | — | Form 4 |
| PRESTON JOHN T Director | Award | 652 | — | — | 10.2% | 7,044 | May 20, 2026 | — | Form 4 |
| GALANTE EDWARD G Director | Award | 652 | — | — | 2.6% | 25,461 | May 20, 2026 | — | Form 4 |
| Polito Karyn Director | Award | 652 | — | — | 18.8% | 4,127 | May 20, 2026 | — | Form 4 |
| Willett Robert Director | Award | 652 | — | — | 7.0% | 10,028 | May 20, 2026 | — | Form 4 |
| Stewart Shelley JR Director | Award | 652 | — | — | 16.8% | 4,523 | May 20, 2026 | — | Form 4 |
| Welch John R. Director | Award | 652 | — | — | 6.4% | 10,889 | May 20, 2026 | — | Form 4 |
| States Lauren Director | Award | 652 | — | — | 5.7% | 12,148 | May 20, 2026 | — | Form 4 |
| Robertson Andrea Director | Gift | 342 | — | — | 3.6% | 9,116 | May 11, 2026 | — | Form 4 |
| Polito Karyn Director | Award | 460 | $295.13 | $135.76K | 15.3% | 3,475 | May 11, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.