Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionLegal & General Group Plc
Latest Disclosed Ownership68,746 shares
Latest Disclosed Value $ 19,711,541
Legal & General Group Plc reports 7.82% decrease in ownership of CLH1 / Clean Harbors, Inc.

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 68,746 shares of Clean Harbors, Inc. (MX:CLH1) valued at $19,711,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 74,578 shares of Clean Harbors, Inc.. This represents a change in shares of -7.82% 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)
2026-05-08 2026-03-31 13F CLEAN HARBORS COM 184496107 68,746 -5,832 -7.82 19,712 12.72 0.0046
2026-02-09 2025-12-31 13F CLEAN HARBORS COM 184496107 74,578 -12,816 -14.66 17,487 -13.83 0.0039
2025-11-13 2025-09-30 13F CLEAN HARBORS COM 184496107 87,394 -2,226 -2.48 20,295 -2.05 0.0046
2025-08-12 2025-06-30 13F CLEAN HARBORS COM 184496107 89,620 999 1.13 20,718 18.61 0.0051
2025-05-15 2025-03-31 13F CLEAN HARBORS COM 184496107 88,621 2,113 2.44 17,467 -12.26 0.0048
2025-02-13 2024-12-31 13F CLEAN HARBORS COM 184496107 86,508 105 0.12 19,909 -4.67 0.0053
2025-02-28 2024-09-30 13F/A-2 CLEAN HARBORS COM 184496107 86,403 1,376 1.62 20,884 8.61 0.0055
2024-11-14 2024-09-30 13F/A-1 CLEAN HARBORS COM 184496107 94,272 1,376 22,786 0.0047
2024-11-14 2024-09-30 13F CLEAN HARBORS COM 184496107 94,272 1,376 22,786 0.0024
2025-05-29 2024-06-30 13F/A-1 CLEAN HARBORS COM 184496107 85,027 -3,402 -3.85 19,229 8.02 0.0054
2024-08-14 2024-06-30 13F CLEAN HARBORS COM 184496107 92,896 1,827 21,008 0.0047
2025-05-29 2024-03-31 13F/A-2 CLEAN HARBORS COM 184496107 88,429 -2,914 -3.19 17,802 11.68 0.0051
2024-07-01 2024-03-31 13F/A-1 CLEAN HARBORS COM 184496107 91,069 -2,914 18,333 0.0043
2024-05-14 2024-03-31 13F CLEAN HARBORS COM 184496107 90,936 -3,047 18,306 0.0022
2025-05-29 2023-12-31 13F/A-1 CLEAN HARBORS COM 184496107 91,343 1,065 1.18 15,940 5.51 0.0050
2024-02-15 2023-12-31 13F CLEAN HARBORS COM 184496107 93,983 3,705 16,401 0.0042
2023-11-14 2023-09-30 13F CLEAN HARBORS COM 184496107 90,278 -1,423 -1.55 15,109 0.20 0.0053
2023-08-14 2023-06-30 13F CLEAN HARBORS COM 184496107 91,701 -6,196 -6.33 15,078 8.04 0.0049
2023-05-15 2023-03-31 13F CLEAN HARBORS COM 184496107 97,897 2,612 2.74 13,956 28.35 0.0050
2023-02-14 2022-12-31 13F CLEAN HARBORS COM 184496107 95,285 912 0.97 10,874 4.76 0.0042
2022-11-14 2022-09-30 13F CLEAN HARBORS COM 184496107 94,373 -2,867 -2.95 10,379 21.75 0.0041
2022-08-22 2022-06-30 13F CLEAN HARBORS COM 184496107 97,240 -22,938 -19.09 8,525 -36.46 0.0030
2022-05-16 2022-03-31 13F CLEAN HARBORS COM 184496107 120,178 3,583 3.07 13,417 15.34 0.0041
2022-02-14 2021-12-31 13F CLEAN HARBORS COM 184496107 116,595 2,932 2.58 11,633 -1.47 0.0035
2021-11-15 2021-09-30 13F CLEAN HARBORS COM 184496107 113,663 870 0.77 11,806 12.37 0.0038
2021-08-12 2021-06-30 13F CLEAN HARBORS COM 184496107 112,793 -13,858 -10.94 10,506 -1.32 0.0035
2021-05-17 2021-03-31 13F CLEAN HARBORS COM 184496107 126,651 1,370 1.09 10,647 11.69 0.0040
2021-02-12 2020-12-31 13F CLEAN HARBORS COM 184496107 125,281 -13,391 -9.66 9,533 22.69 0.0037
2020-11-13 2020-09-30 13F CLEAN HARBORS COM 184496107 138,672 3,465 2.56 7,770 -4.18 0.0035
2020-08-14 2020-06-30 13F CLEAN HARBORS COM 184496107 135,207 -7,405 -5.19 8,109 10.76 0.0039
2020-05-14 2020-03-31 13F CLEAN HARBORS COM 184496107 142,612 4,015 2.90 7,321 -38.40 0.0043
2020-02-13 2019-12-31 13F CLEAN HARBORS COM 184496107 138,597 7,429 5.66 11,885 27.44 0.0057
2019-08-14 2019-06-30 13F CLEAN HARBORS COM 184496107 131,168 47,728 57.20 9,326 56.24 0.0050
2019-05-15 2019-03-31 13F CLEAN HARBORS COM 184496107 83,440 3,088 3.84 5,969 50.54 0.0034
2019-02-15 2018-12-31 13F CLEAN HARBORS COM 184496107 80,352 3,217 4.17 3,965 -28.18 0.0031
2018-11-20 2018-09-30 13F CLEAN HARBORS COM 184496107 77,135 -432 -0.56 5,521 28.13 0.0040
2018-08-10 2018-06-30 13F CLEAN HARBORS COM 184496107 77,567 -5,306 -6.40 4,309 6.53 0.0033
2018-05-17 2018-03-31 13F CLEAN HARBORS COM 184496107 82,873 5,920 7.69 4,045 -2.97 0.0031
2018-02-13 2017-12-31 13F CLEAN HARBORS COM 184496107 76,953 5,578 7.82 4,169 3.01 0.0030
2017-11-09 2017-09-30 13F CLEAN HARBORS COM 184496107 71,375 6,352 9.77 4,047 11.46 0.0030
2017-08-03 2017-06-30 13F CLEAN HARBORS COM 184496107 65,023 7,019 12.10 3,631 12.59 0.0029
2017-05-12 2017-03-31 13F CLEAN HARBORS COM 184496107 58,004 13,441 30.16 3,225 30.04 0.0027
2017-02-13 2016-12-31 13F CLEAN HARBORS COM 184496107 44,563 7,240 19.40 2,480 38.55 0.0023
2016-10-12 2016-09-30 13F CLEAN HARBORS COM 184496107 37,323 8,907 31.35 1,790 21.03 0.0018
2016-08-16 2016-06-30 13F CLEAN HARBORS COM 184496107 28,416 6,755 31.19 1,479 38.35 0.0016
2016-05-16 2016-03-31 13F CLEAN HARBORS COM 184496107 21,661 -5,516 -20.30 1,069 -5.65 0.0012
2016-02-16 2015-12-31 13F CLEAN HARBORS COM 184496107 27,177 -807 -2.88 1,133 -7.96 0.0013
2015-11-13 2015-09-30 13F CLEAN HARBORS COM 184496107 27,984 -5,535 -16.51 1,231 -31.61 0.0015
2015-07-31 2015-06-30 13F CLEAN HARBORS COM 184496107 33,519 -4,500 -11.84 1,800 -16.59 0.0021
2015-05-14 2015-03-31 13F CLEAN HARBORS COM 184496107 38,019 16,672 78.10 2,158 110.33 0.0026
2015-02-20 2014-12-31 13F/A-1 CLEAN HARBORS COM 184496107 21,347 -507 -2.32 1,026 -12.98 0.0012
2015-02-17 2014-12-31 13F CLEAN HARBORS COM 184496107 21,347 -507 1,026 0.0013
2014-11-14 2014-09-30 13F CLEAN HARBORS COM 184496107 21,854 1,685 8.35 1,179 -9.03 0.0014
2014-08-13 2014-06-30 13F CLEAN HARBORS COM 184496107 20,169 -164 -0.81 1,296 16.34 0.0015
2014-05-14 2014-03-31 13F CLEAN HARBORS COM 184496107 20,333 411 2.06 1,114 -6.78 0.0014
2014-02-07 2013-12-31 13F CLEAN HARBORS COM 184496107 19,922 2,225 12.57 1,195 15.13 0.0014
2013-11-12 2013-09-30 13F CLEAN HARBORS COM 184496107 17,697 4,650 35.64 1,038 57.51 0.0014
2013-08-01 2013-06-30 13F CLEAN HARBORS COM 184496107 13,047 13,047 659 0.0009
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.