Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership945,892 shares
Latest Disclosed Value $ 271,278,985
Geode Capital Management, Llc reports 3.06% increase in ownership of CLH1 / Clean Harbors, Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 945,892 shares of Clean Harbors, Inc. (MX:CLH1) valued at $271,278,985 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 917,779 shares of Clean Harbors, Inc.. This represents a change in shares of 3.06% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CLEAN HARBORS COM 184496107 945,892 28,113 3.06 271,279 26.03 0.0090
2026-02-09 2025-12-31 13F CLEAN HARBORS COM 184496107 917,779 11,020 1.22 215,247 2.20 0.0133
2025-11-12 2025-09-30 13F CLEAN HARBORS COM 184496107 906,759 17,333 1.95 210,607 2.41 0.0134
2025-08-08 2025-06-30 13F CLEAN HARBORS COM 184496107 889,426 -2,601 -0.29 205,651 16.93 0.0144
2025-05-13 2025-03-31 13F CLEAN HARBORS COM 184496107 892,027 43,049 5.07 175,873 -10.01 0.0138
2025-02-12 2024-12-31 13F CLEAN HARBORS COM 184496107 848,978 1,263 0.15 195,445 -4.64 0.0151
2024-11-12 2024-09-30 13F CLEAN HARBORS COM 184496107 847,715 11,808 1.41 204,955 8.39 0.0166
2024-08-09 2024-06-30 13F CLEAN HARBORS COM 184496107 835,907 22,099 2.72 189,092 15.40 0.0166
2024-05-13 2024-03-31 13F CLEAN HARBORS COM 184496107 813,808 33,514 4.30 163,861 20.32 0.0152
2024-02-13 2023-12-31 13F CLEAN HARBORS COM 184496107 780,294 24,934 3.30 136,191 7.71 0.0142
2023-11-13 2023-09-30 13F CLEAN HARBORS COM 184496107 755,360 6,896 0.92 126,439 2.74 0.0151
2023-08-11 2023-06-30 13F CLEAN HARBORS COM 184496107 748,464 38,702 5.45 123,070 21.63 0.0145
2023-05-15 2023-03-31 13F CLEAN HARBORS COM 184496107 709,762 22,781 3.32 101,184 129,621.79 0.0131
2023-02-13 2022-12-31 13F CLEAN HARBORS COM 184496107 686,981 33,874 5.19 78 -99.89 0.0110
2022-11-14 2022-09-30 13F CLEAN HARBORS COM 184496107 653,107 6,680 1.03 71,828 26.74 0.0109
2022-08-12 2022-06-30 13F CLEAN HARBORS COM 184496107 646,427 -7,342 -1.12 56,672 -22.35 0.0083
2022-05-13 2022-03-31 13F CLEAN HARBORS COM 184496107 653,769 6,860 1.06 72,986 13.08 0.0091
2022-02-11 2021-12-31 13F CLEAN HARBORS COM 184496107 646,909 -94,489 -12.74 64,542 -16.19 0.0078
2021-11-12 2021-09-30 13F CLEAN HARBORS COM 184496107 741,398 48,258 6.96 77,009 19.28 0.0104
2021-08-13 2021-06-30 13F CLEAN HARBORS COM 184496107 693,140 87,612 14.47 64,559 26.83 0.0089
2021-05-12 2021-03-31 13F CLEAN HARBORS COM 184496107 605,528 9,218 1.55 50,900 12.17 0.0078
2021-02-12 2020-12-31 13F CLEAN HARBORS COM 184496107 596,310 39,530 7.10 45,379 45.46 0.0076
2020-11-13 2020-09-30 13F CLEAN HARBORS COM 184496107 556,780 -27,123 -4.65 31,196 -10.92 0.0061
2020-08-13 2020-06-30 13F CLEAN HARBORS COM 184496107 583,903 -4,983 -0.85 35,022 15.84 0.0075
2020-05-14 2020-03-31 13F CLEAN HARBORS COM 184496107 588,886 18,837 3.30 30,232 -38.15 0.0079
2020-02-20 2019-12-31 13F/A-1 CLEAN HARBORS COM 184496107 570,049 20,017 3.64 48,881 15.12 0.0102
2020-02-13 2019-12-31 13F CLEAN HARBORS COM 184496107 570,049 20,017 48,881 6,229.4549
2019-11-12 2019-09-30 13F CLEAN HARBORS COM 184496107 550,032 11,304 2.10 42,462 10.86 0.0099
2019-08-14 2019-06-30 13F CLEAN HARBORS COM 184496107 538,728 14,952 2.85 38,303 2.24 0.0093
2019-05-14 2019-03-31 13F CLEAN HARBORS COM 184496107 523,776 21,092 4.20 37,465 51.03 0.0097
2019-03-06 2018-12-31 13F/A-1 CLEAN HARBORS COM 184496107 502,684 25,277 5.29 24,807 -27.41 0.0077
2019-02-13 2018-12-31 13F CLEAN HARBORS COM 184496107 502,684 25,277 24,807
2018-11-13 2018-09-30 13F CLEAN HARBORS COM 184496107 477,407 17,320 3.76 34,172 33.71 0.0096
2018-08-14 2018-06-30 13F CLEAN HARBORS COM 184496107 460,087 24,516 5.63 25,557 20.21 0.0079
2018-05-15 2018-03-31 13F CLEAN HARBORS COM 184496107 435,571 9,478 2.22 21,260 -7.94 0.0069
2018-02-13 2017-12-31 13F CLEAN HARBORS COM 184496107 426,093 -6,156 -1.42 23,094 -5.77 0.0078
2017-11-14 2017-09-30 13F CLEAN HARBORS COM 184496107 432,249 17,937 4.33 24,508 5.95 0.0090
2017-08-14 2017-06-30 13F CLEAN HARBORS COM 184496107 414,312 9,813 2.43 23,131 2.81 0.0091
2017-06-21 2017-03-31 13F/A-1 CLEAN HARBORS INC COM COM 184496107 404,499 27,024 7.16 22,498 7.10 0.0092
2017-05-12 2017-03-31 13F CLEAN HARBORS INC COM COM 184496107 404,499 22,498
2017-02-14 2016-12-31 13F CLEAN HARBORS INC COM COM 184496107 377,475 13,199 3.62 21,006 20.19 0.0098
2016-11-10 2016-09-30 13F CLEAN HARBORS INC COM COM 184496107 364,276 21,335 6.22 17,477 -2.20 0.0088
2016-08-12 2016-06-30 13F CLEAN HARBORS INC COM COM 184496107 342,941 22,672 7.08 17,870 13.09 0.0097
2016-05-13 2016-03-31 13F CLEAN HARBORS INC COM COM 184496107 320,269 14,563 4.76 15,802 24.11 0.0084
2016-02-12 2015-12-31 13F CLEAN HARBORS INC COM COM 184496107 305,706 -849 -0.28 12,732 -5.54 0.0073
2015-11-13 2015-09-30 13F CLEAN HARBORS INC COM COM 184496107 306,555 6,904 2.30 13,479 -16.30 0.0082
2015-08-14 2015-06-30 13F CLEAN HARBORS INC COM COM 184496107 299,651 14,237 4.99 16,103 -0.63 0.0092
2015-05-14 2015-03-31 13F CLEAN HARBORS INC COM COM 184496107 285,414 2,633 0.93 16,205 19.27 0.0093
2015-02-12 2014-12-31 13F CLEAN HARBORS INC COM COM 184496107 282,781 1,020 0.36 13,587 -10.56 0.0081
2014-11-14 2014-09-30 13F CLEAN HARBORS INC COM COM 184496107 281,761 1,216 0.43 15,192 -15.72 0.0098
2014-08-13 2014-06-30 13F CLEAN HARBORS INC COM COM 184496107 280,545 14,187 5.33 18,025 23.52 0.0117
2014-05-14 2014-03-31 13F CLEAN HARBORS INC COM COM 184496107 266,358 6,768 2.61 14,593 -6.24 0.0098
2014-02-14 2013-12-31 13F CLEAN HARBORS INC COM COM 184496107 259,590 19,686 8.21 15,565 10.60 0.0108
2013-11-14 2013-09-30 13F CLEAN HARBORS INC COM COM 184496107 239,904 30,254 14.43 14,073 32.84 0.0113
2013-08-14 2013-06-30 13F CLEAN HARBORS INC COM COM 184496107 209,650 209,650 10,594 0.0093
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.