Clean Harbors Inc
CLH- Exchange
- NYSE
- Industry
- Hazardous Waste Management
- SEC CIK
- 0000822818
In the last 90 days, Clean Harbors Inc insiders filed 0 open-market purchases and 5 sales; 663 institutions reported holding it in 13F filings for Q2 2026, worth $14.8B in total; D1 Capital Partners is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Clean Harbors Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 5 filings
- 3 insiders, $2.83M in total
- Insiders trading
- 3
- Net value
- −$2.83M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Clean Harbors Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Gerstenberg Eric W | CO-CEO | 56,793 | Aug 18, 2026 | 7 |
| Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | 17,620 | Aug 14, 2026 | 4 |
| Battles Michael Louis | CO-CEO | 94,355 | Aug 12, 2026 | 3 |
| Curtis George L | EXEC. VICE PRESIDENT (CHESI) | 44,291 | Aug 11, 2026 | 4 |
| Robertson Andrea | Director | 8,979 | Aug 3, 2026 | 3 |
| McKim Alan S | EXEC CHAIR, CTO. | 30,154 | Jul 20, 2026 | 5 |
| Gabriel Sharon M. | EVP/CIO (CHESI) | 20,706 | Jul 6, 2026 | 5 |
| Weber Brian P | EVP (CHESI) | 47,914 | Jul 6, 2026 | 3 |
| Underwood Rebecca | PRESIDENT & EVP FACILITIES | 18,373 | Jul 6, 2026 | 4 |
| Geer Charles H. II | EVP, Industrial Services | 10,799 | Jul 6, 2026 | 5 |
| Diderich Jeroen | EVP&President of Sales&Service | 16,152 | Jun 3, 2026 | 2 |
| States Lauren | Director | 11,359 | May 27, 2026 | 3 |
| Preston John T | Director | 7,044 | May 22, 2026 | 1 |
| Galante Edward G | Director | 25,461 | May 22, 2026 | 1 |
| Willett Robert | Director | 10,028 | May 22, 2026 | 1 |
| Stewart Shelley JR | Director | 4,523 | May 22, 2026 | 1 |
| Quirk Alison A. | Director | 3,630 | May 22, 2026 | 1 |
| Welch John R. | Director | 10,889 | May 22, 2026 | 3 |
| Reed Marcy L. | Director | 5,733 | May 22, 2026 | 2 |
| Polito Karyn | Director | 4,127 | May 22, 2026 | 2 |
| Harrison Robert W. | EVP, EHS | 6,648 | Mar 17, 2026 | 4 |
| Speights Robert | PRESIDENT, INDUSTRIAL SERVICES | 16,310 | May 28, 2025 | 0 |
| Banucci Eugene G | Director | 5,598 | Jun 12, 2023 | 0 |
| McDuffie Melkeya | EVP, HUMAN RESOURCES OFFICER | 10,094 | May 26, 2023 | 0 |
| Twohig Michael J | EVP (CHESI) | 28,857 | Mar 29, 2023 | 0 |
| Shields Thomas J | Director | 28,762 | May 26, 2022 | 0 |
| Knapp Jeffrey Herbert | EVP - HR (CHESI) | 2,853 | Dec 6, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 6, 2021 (view filing) | Aug 5 | 1 day | Robertson AndreaDirector | SSale | −2.17K | $99.14 | −$214.9K | −16.2%11.2K after | |
| Aug 9, 2021 (view filing) | Aug 5 | 4 days | Welch John R.Director | SSale | −5.50K | $99.05 | −$544.8K | −35.1%10.2K after | |
| Aug 13, 2021 (view filing) | Aug 12 | 1 day | Dugas Eric J.SVP Finance, Controller & CAO | SSale | −2.00K | $102.99 | −$206.0K | −8.5%21.5K after | |
| Aug 23, 2021 (view filing) | Aug 20 | 3 days | Gerstenberg Eric WChief Operating Officer(CHESI) | SSale | −18.0K | $100.28 | −$1.80M | −19.1%76.3K after | |
| Aug 24, 2021 (view filing) | Aug 23 | 1 day | Battles Michael LouisEVP and CFO | SSale | −5.00K | $101.75 | −$508.8K | −8.0%57.4K after | |
| Aug 26, 2021 (view filing) | Aug 25 | 1 day | McKim Alan SChrmn.of Bd, Pres. & CEO | SSale | −25.0K | $101.76 | −$2.54M | −0.8%3.24M after | |
| Sep 1, 2021 (view filing) | Aug 30-Sep 1 | 2 days | McKim Alan SChrmn.of Bd, Pres. & CEO | SSale | −30.0K | $102.61 | −$3.08M | −0.9%3.21M after | 3 lots |
| Sep 13, 2021 (view filing) | Sep 10 | 3 days | Weber Brian PEVP (CHESI) | SSale | −2.52K | $101.42 | −$255.5K | −4.1%58.3K after | |
| Nov 24, 2021 (view filing) | Nov 23 | 1 day | Knapp Jeffrey HerbertEVP - HR (CHESI) | SSale | −503 | $109.22 | −$54.9K | −8.7%5.31K after | |
| Dec 6, 2021 (view filing) | Nov 19-Dec 1 | 17 daysLate | Knapp Jeffrey HerbertEVP - HR (CHESI) | SSale | −2.46K | $105.47 | −$259.2K | −46.3%2.85K after | 3 lots |
| Dec 14, 2021 (view filing) | Dec 10 | 4 days | Speights RobertPresident, Industrial Services | SSale | −2.12K | $99.02 | −$209.7K | −6.6%30.0K after | |
| Dec 30, 2021 (view filing) | Dec 30 | Same day | Weber Brian PEVP (CHESI) | SSale | −2.39K | $98.90 | −$236.4K | −3.9%59.3K after | |
| Feb 28, 2022 (view filing) | Feb 25 | 3 days | Robertson AndreaDirector | SSale | −1.00K | $95.30 | −$95.3K | −8.7%10.5K after | |
| Mar 21, 2022 (view filing) | Mar 17-18 | 4 days | McKim Alan SChrmn.of Bd, Pres. & CEO | SSale | −50.2K | $109.32 | −$5.49M | −1.6%3.11M after | 2 lots |
| Mar 28, 2022 (view filing) | Mar 25 | 3 days | Gerstenberg Eric WChief Operating Officer(CHESI) | SSale | −6.93K | $106.62 | −$738.6K | −7.1%90.8K after | |
| May 11, 2022 (view filing) | May 10 | 1 day | States LaurenDirector | SSale | −750 | $90.68 | −$68.0K | −5.7%12.3K after | |
| May 12, 2022 (view filing) | May 12 | Same day | Battles Michael LouisEVP and CFO | PPurchase | +2.00K | $88.35 | +$176.7K | +2.9%70.4K after | |
| Aug 8, 2022 (view filing) | Aug 5 | 3 days | Robertson AndreaDirector | SSale | −1.09K | $106.37 | −$116.5K | −9.3%10.7K after | |
| Aug 9, 2022 (view filing) | Aug 8 | 1 day | Preston John TDirector | SSale | −2.17K | $111.50 | −$241.7K | −16.0%11.4K after | |
| Sep 12, 2022 (view filing) | Sep 9 | 3 days | Weber Brian PEVP (CHESI) | SSale | −2.00K | $122.42 | −$245.2K | −3.1%62.1K after | |
| Nov 29, 2022 (view filing) | Nov 28 | 1 day | McKim Alan SCHRMN.OF BD, PRES. & CEO | SSale | −40.0K | $120.45 | −$4.82M | −1.3%3.09M after | |
| Dec 14, 2022 (view filing) | Dec 13 | 1 day | Dugas Eric J.SVP FINANCE, CONTROLLER & CAO | SSale | −3.27K | $122.39 | −$400.7K | −11.1%26.3K after | |
| Dec 22, 2022 (view filing) | Dec 21 | 1 day | Gerstenberg Eric WCHIEF OPERATING OFFICER(CHESI) | SSale | −16.4K | $116.02 | −$1.90M | −21.1%61.3K after | |
| Dec 30, 2022 (view filing) | Dec 29 | 1 day | Speights RobertPRESIDENT, INDUSTRIAL SERVICES | SSale | −3.33K | $113.71 | −$378.3K | −8.4%36.3K after | |
| Mar 3, 2023 (view filing) | Mar 2 | 1 day | Preston John TDirector | SSale | −3.75K | $134.90 | −$505.9K | −33.0%7.63K after | |
| Mar 8, 2023 (view filing) | Mar 7 | 1 day | Banucci Eugene GDirector | SSale | −5.00K | $133.97 | −$669.9K | −19.5%20.6K after | |
| Mar 13, 2023 (view filing) | Mar 9 | 4 days | Gabriel Sharon M.EVP/CIO (CHESI) | SSale | −3.81K | $138.92 | −$529.3K | −11.4%29.6K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Weber Brian PEVP (CHESI) | SSale | −527 | $133.07 | −$70.1K | −0.7%73.0K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Twohig Michael JEVP (CHESI) | SSale | −290 | $133.07 | −$38.6K | −0.9%30.9K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Speights RobertPRESIDENT, INDUSTRIAL SERVICES | SSale | −1.36K | $133.07 | −$181.4K | −3.2%41.4K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | McKim Alan SCHRMN.OF BD, PRES. & CEO | SSale | −1.16K | $133.07 | −$154.5K | 0.0%2.99M after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | McDuffie MelkeyaEVP, HUMAN RESOURCES OFFICER | SSale | −231 | $133.07 | −$30.7K | −2.1%10.8K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Gerstenberg Eric WCHIEF OPERATING OFFICER(CHESI) | SSale | −488 | $133.07 | −$64.9K | −0.6%87.3K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Gabriel Sharon M.EVP/CIO (CHESI) | SSale | −274 | $133.07 | −$36.5K | −0.9%29.3K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Dugas Eric J.SVP FINANCE, CONTROLLER & CAO | SSale | −305 | $133.07 | −$40.6K | −1.0%30.5K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Curtis George LEXEC. VICE PRESIDENT (CHESI) | SSale | −221 | $133.07 | −$29.4K | −0.4%59.1K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Battles Michael LouisEVP AND CFO | SSale | −644 | $133.07 | −$85.7K | −0.7%90.9K after | |
| Mar 29, 2023 (view filing) | Mar 27 | 2 days | Twohig Michael JEVP (CHESI) | SSale | −2.00K | $134.42 | −$268.8K | −6.5%28.9K after | |
| Apr 4, 2023 (view filing) | Apr 1 | 3 days | Dugas Eric J.SVP FINANCE, CONTROLLER & CAO | SSale | −346 | $142.56 | −$49.3K | −1.1%30.2K after | |
| Apr 4, 2023 (view filing) | Apr 1 | 3 days | Gabriel Sharon M.EVP/CIO (CHESI) | SSale | −196 | $142.56 | −$27.9K | −0.7%29.1K after | |
| May 5, 2023 (view filing) | May 4 | 1 day | States LaurenDirector | SSale | −510 | $136.13 | −$69.4K | −3.7%13.4K after | |
| May 17, 2023 (view filing) | May 15-16 | 2 days | McKim Alan SEXEC CHAIR, CTO. | SSale | −70.0K | $139.15 | −$9.74M | −2.4%2.82M after | 2 lots |
| May 26, 2023 (view filing) | May 24 | 2 days | McDuffie MelkeyaEVP, HUMAN RESOURCES OFFICER | SSale | −714 | $144.29 | −$103.0K | −6.6%10.1K after | |
| May 30, 2023 (view filing) | May 25 | 5 days | Weber Brian PEVP (CHESI) | SSale | −3.13K | $142.63 | −$446.6K | −4.3%69.8K after | |
| May 31, 2023 (view filing) | May 26 | 5 days | Banucci Eugene GDirector | SSale | −10.0K | $144.59 | −$1.45M | −48.5%10.6K after | |
| Jun 5, 2023 (view filing) | Jun 2 | 3 days | Welch John R.Director | SSale | −1.00K | $150.43 | −$150.4K | −7.4%12.4K after | |
| Jun 12, 2023 (view filing) | Jun 9 | 3 days | Banucci Eugene GDirector | SSale | −5.02K | $156.09 | −$783.6K | −47.3%5.60K after | |
| Jun 12, 2023 (view filing) | Jun 9 | 3 days | Gabriel Sharon M.EVP/CIO (CHESI) | SSale | −3.23K | $155.71 | −$503.7K | −11.1%25.8K after | |
| Jul 6, 2023 (view filing) | Jul 3 | 3 days | Battles Michael LouisCO-CEO | SSale | −6.47K | $164.43 | −$1.06M | −7.1%84.5K after | |
| Jul 6, 2023 (view filing) | Jul 3 | 3 days | Curtis George LEXEC. VICE PRESIDENT (CHESI) | SSale | −717 | $164.43 | −$117.9K | −1.2%58.4K after |