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Clean Harbors Inc SEC Filings
What Clean Harbors Inc has told the SEC happened, by the 8-K items and forms it filed under: when it reported results, who joined or left, what it bought or sold, and whether its auditor or its accounts ever changed.
CLH overview →Filings on file
117
since Sep 30, 2016
Warning signs
0
none filed
Last results
Jul 29, 2026
8-K item 2.02
Industry
Hazardous Waste Management
SIC 4955
Newest first
Each label is a form type or an 8-K item as filed; each row links to the filing.
| Filed | What it reports | Document |
|---|---|---|
| May 20, 2026 | Executive or director change 8-K | Read ↗ |
| Sep 3, 2024 | Executive or director change 8-K | Read ↗ |
| May 23, 2024 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Mar 16, 2023 | Executive or director change 8-K | Read ↗ |
| Mar 1, 2023 | Executive or director change 8-K | Read ↗ |
| Nov 2, 2022 | Executive or director change 8-K | Read ↗ |
| Sep 6, 2022 | Executive or director change 8-K | Read ↗ |
| Sep 10, 2021 | Executive or director change 8-K | Read ↗ |
| Jun 3, 2021 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Jun 3, 2020 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Dec 17, 2019 | Executive or director change 8-K | Read ↗ |
| Jun 6, 2019 | Executive or director changeShareholder vote 8-K | Read ↗ |
| May 9, 2019 | Executive or director change 8-K | Read ↗ |
| Jun 9, 2017 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Sep 30, 2016 | Executive or director change 8-K | Read ↗ |
Source: Clean Harbors Inc's EDGAR filing history, the last ten years. The labels are the form types and 8-K item numbers the company filed under, not a reading of what it wrote — an item 5.02 can be a chief executive fired or a director retiring on schedule — so each row links to the filing.
More on CLH
Company overviewEverything on CLH in one place, with the price.Insider tradingWhat CLH's own officers and directors buy and sell.Who owns itEvery manager reporting a position in CLH.Funds holding itWhich funds and ETFs hold CLH, and how big a bet.LobbyingWhat CLH spends lobbying Congress, and on what.Who lobbies for itThe lobbyists on CLH's account, and who they worked for.Federal contractsWhat federal agencies pay CLH.PatentsWhat CLH is filing at the patent office.Workplace safetyWhat OSHA found at CLH's sites.