# Clean Harbors Inc: overview

CLH · NYSE · CIK 822818 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/clh.md) · [Financials](/companies/clh/financials.md) · [Filings](/companies/clh/filings.md) · [Insiders](/companies/clh/insiders.md)

Latest reported revenue: [$1.46bn](/filings/0000822818-26-000020.md) for Q1 FY2026, three months to 2026-03-31, from the 10-Q filed May 6, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0000822818-26-000020).

## Last eight quarters

| Line item | Unit | Q2 FY2024 (2024-06-30) | Q3 FY2024 (2024-09-30) | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [1,553](/filings/0000822818-25-000030.md) | [1,529](/filings/0000822818-25-000040.md) | [1,431 d](/filings/0000822818-26-000009.md) | [1,432](/filings/0000822818-26-000020.md) | [1,550](/filings/0000822818-25-000030.md) | [1,549](/filings/0000822818-25-000040.md) | [1,500 d](/filings/0000822818-26-000009.md) | [1,460](/filings/0000822818-26-000020.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [13.9%](/filings/0000822818-25-000030.md) | [12.6%](/filings/0000822818-25-000040.md) | [9.6% d](/filings/0000822818-26-000009.md) | [7.8%](/filings/0000822818-26-000020.md) | [13.6%](/filings/0000822818-25-000030.md) | [12.5%](/filings/0000822818-25-000040.md) | [10.6% d](/filings/0000822818-26-000009.md) | [8.1%](/filings/0000822818-26-000020.md) |
| Net margin | % | [8.6%](/filings/0000822818-25-000040.md) | [7.5%](/filings/0000822818-25-000040.md) | [5.9% d](/filings/0000822818-26-000009.md) | [4.1%](/filings/0000822818-26-000020.md) | [8.2%](/filings/0000822818-25-000040.md) | [7.7%](/filings/0000822818-25-000040.md) | [5.8% d](/filings/0000822818-26-000009.md) | [4.3%](/filings/0000822818-26-000020.md) |
| Diluted EPS | $ per share | [2.46](/filings/0000822818-25-000030.md) | [2.12](/filings/0000822818-25-000040.md) | not reported | [1.09](/filings/0000822818-26-000020.md) | [2.36](/filings/0000822818-25-000030.md) | [2.21](/filings/0000822818-25-000040.md) | not reported | [1.19](/filings/0000822818-26-000020.md) |
| Free cash flow | $m | [80.9 d](/filings/0000822818-25-000030.md) | [142 d](/filings/0000822818-25-000040.md) | [242 d](/filings/0000822818-26-000009.md) | [(117)](/filings/0000822818-26-000020.md) | [118 d](/filings/0000822818-25-000030.md) | [208 d](/filings/0000822818-25-000040.md) | [233 d](/filings/0000822818-26-000009.md) | [(92.1)](/filings/0000822818-26-000020.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 6-month figure less the 3-month figure; 9-month figure less the 6-month figure; 12-month figure less the 9-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [3,806](/filings/0000822818-24-000008.md) | [5,167](/filings/0000822818-25-000007.md) | [5,409](/filings/0000822818-26-000009.md) | [5,890](/filings/0000822818-26-000009.md) | [6,031](/filings/0000822818-26-000009.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [9.1%](/filings/0000822818-24-000008.md) | [12.3%](/filings/0000822818-25-000007.md) | [11.3%](/filings/0000822818-26-000009.md) | [11.4%](/filings/0000822818-26-000009.md) | [11.2%](/filings/0000822818-26-000009.md) |
| Net margin | % | [5.3%](/filings/0000822818-24-000008.md) | [8.0%](/filings/0000822818-25-000007.md) | [7.0%](/filings/0000822818-26-000009.md) | [6.8%](/filings/0000822818-26-000009.md) | [6.5%](/filings/0000822818-26-000009.md) |
| Diluted EPS | $ per share | [3.71](/filings/0000822818-24-000008.md) | [7.56](/filings/0000822818-25-000007.md) | [6.95](/filings/0000822818-26-000009.md) | [7.42](/filings/0000822818-26-000009.md) | [7.28](/filings/0000822818-26-000009.md) |
| Free cash flow | $m | [304](/filings/0000822818-24-000008.md) | [281](/filings/0000822818-25-000007.md) | [312](/filings/0000822818-26-000009.md) | [346](/filings/0000822818-26-000009.md) | [442](/filings/0000822818-26-000009.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/clh/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $1.52bn | 5,076,220 |  | Added +273,728 |
| [WELLINGTON MANAGEMENT GROUP LLP](/funds/902219.md) | 2026-06-30 | $942.6m | 3,155,233 |  | Reduced −421,801 |
| [FMR LLC](/funds/315066.md) | 2026-06-30 | $897.0m | 3,002,654 |  | Added +901,475 |
| [JANUS HENDERSON GROUP PLC](/funds/1274173.md) | 2026-03-31 | $675.4m | 2,355,394 |  | Not compared |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $652.2m | 2,182,972 |  | Added +13,608 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $592.5m | 1,983,336 |  | Added +20,385 |
| [Jupiter Topco LLC](/funds/2146052.md) | 2026-06-30 | $477.6m | 1,598,574 |  | Not compared |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $472.6m | 1,582,004 |  | Added +44,707 |
| [D1 Capital Partners L.P.](/funds/1747057.md) | 2026-06-30 | $393.0m | 1,315,501 |  | Reduced −22,780 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $337.4m | 1,129,240 |  | Added +183,348 |

## Recent filings

[All 2,134 filings](/companies/clh/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-05 | 17:06 ET | [8-K](/filings/0000822818-26-000042.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000042 |
| 2026-09-18 | 11:57 ET | [8-K](/filings/0000822818-26-000040.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000040 |
| 2026-08-12 | 12:26 ET | [8-K](/filings/0000822818-26-000037.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000037 |
| 2026-07-29 | 10:56 ET | [10-Q](/filings/0000822818-26-000034.md) | Quarterly report, period 2026-06-30 | 0000822818-26-000034 |
| 2026-07-29 | 08:07 ET | [8-K](/filings/0000822818-26-000031.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-26-000031 |
| 2026-05-20 | 16:41 ET | [8-K](/filings/0000822818-26-000028.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000822818-26-000028 |
| 2026-05-20 | 16:34 ET | [8-K](/filings/0000822818-26-000027.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000822818-26-000027 |
| 2026-05-14 | 10:55 ET | [8-K](/filings/0000822818-26-000024.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0000822818-26-000024 |
| 2026-05-06 | 10:55 ET | [10-Q](/filings/0000822818-26-000020.md) | Quarterly report, period 2026-03-31 | 0000822818-26-000020 |
| 2026-05-06 | 08:12 ET | [8-K](/filings/0000822818-26-000017.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000822818-26-000017 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0000822818-26-000009.md), filed Feb 18, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 822818
- Tickers: CLH
- Exchange: NYSE
- SIC code: 4955 Hazardous Waste Management
- State of incorporation: MA
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 28, 2026, 08:18 ET. No prices; not investment advice.