Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionVictory Capital Management Inc
Latest Disclosed Ownership73,660 shares
Latest Disclosed Value $ 21,120,532
Victory Capital Management Inc reports 43.03% decrease in ownership of CLH1 / Clean Harbors, Inc.

On May 15, 2026 - Victory Capital Management Inc filed a 13F-HR form disclosing ownership of 73,660 shares of Clean Harbors, Inc. (MX:CLH1) valued at $21,120,532 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 129,301 shares of Clean Harbors, Inc.. This represents a change in shares of -43.03% 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 73,660 -55,641 -43.03 21,121 -30.34 0.0101
2026-02-13 2025-12-31 13F CLEAN HARBORS COM 184496107 129,301 -29,859 -18.76 30,318 -17.97 0.0171
2025-11-12 2025-09-30 13F CLEAN HARBORS COM 184496107 159,160 -83,605 -34.44 36,960 -34.14 0.0216
2025-08-13 2025-06-30 13F CLEAN HARBORS COM 184496107 242,765 -4,629 -1.87 56,122 15.10 0.0362
2025-05-02 2025-03-31 13F CLEAN HARBORS COM 184496107 247,394 -97,811 -28.33 48,761 -38.62 0.0499
2025-02-06 2024-12-31 13F CLEAN HARBORS COM 184496107 345,205 10,320 3.08 79,445 -1.85 0.0781
2024-11-05 2024-09-30 13F CLEAN HARBORS COM 184496107 334,885 7,053 2.15 80,945 9.18 0.0780
2024-08-05 2024-06-30 13F CLEAN HARBORS COM 184496107 327,832 5,187 1.61 74,139 14.15 0.0743
2024-05-03 2024-03-31 13F CLEAN HARBORS COM 184496107 322,645 -69,579 -17.74 64,952 -5.11 0.0634
2024-02-05 2023-12-31 13F CLEAN HARBORS COM 184496107 392,224 -20,035 -4.86 68,447 -0.79 0.0720
2023-11-06 2023-09-30 13F CLEAN HARBORS COM 184496107 412,259 -77,046 -15.75 68,996 -14.25 0.0793
2023-07-27 2023-06-30 13F CLEAN HARBORS COM 184496107 489,305 -156,014 -24.18 80,456 -12.54 0.0885
2023-05-02 2023-03-31 13F CLEAN HARBORS COM 184496107 645,319 -131,541 -16.93 91,997 3.77 0.1033
2023-04-25 2022-12-31 13F/A-3 CLEAN HARBORS COM 184496107 776,860 130,089 20.11 88,655 24.63 0.1020
2023-03-10 2022-12-31 13F/A-2 CLEAN HARBORS COM 184496107 776,860 130,089 88,655 0.0968
2023-02-10 2022-12-31 13F/A-1 CLEAN HARBORS COM 184496107 776,860 130,089 88,655 0.0611
2023-02-09 2022-12-31 13F CLEAN HARBORS COM 184496107 774,564 127,793 89,944 0.0611
2022-11-02 2022-09-30 13F CLEAN HARBORS COM 184496107 646,771 218,711 51.09 71,132 89.54 0.0830
2022-08-01 2022-06-30 13F CLEAN HARBORS COM 184496107 428,060 16,073 3.90 37,528 -18.23 0.0428
2022-05-04 2022-03-31 13F CLEAN HARBORS COM 184496107 411,987 68,412 19.91 45,892 33.88 0.0459
2022-02-07 2021-12-31 13F CLEAN HARBORS COM 184496107 343,575 -54,570 -13.71 34,279 -17.11 0.0315
2021-11-02 2021-09-30 13F CLEAN HARBORS COM 184496107 398,145 -13,815 -3.35 41,355 7.78 0.0405
2021-08-03 2021-06-30 13F CLEAN HARBORS COM 184496107 411,960 -29,785 -6.74 38,370 3.33 0.0368
2021-05-04 2021-03-31 13F CLEAN HARBORS COM 184496107 441,745 -24,616 -5.28 37,133 4.63 0.0381
2021-02-01 2020-12-31 13F CLEAN HARBORS COM 184496107 466,361 -30,334 -6.11 35,490 27.53 0.0395
2020-11-09 2020-09-30 13F Clean Harbors COM 184496107 496,695 -39,528 -7.37 27,829 -13.48 0.0357
2020-08-07 2020-06-30 13F CLEAN HARBORS COM 184496107 536,223 95,576 21.69 32,163 42.17 0.0436
2020-05-12 2020-03-31 13F/A-1 CLEAN HARBORS COM 184496107 440,647 -612,359 -58.15 22,623 -74.95 0.0379
2020-05-04 2020-03-31 13F CLEAN HARBORS COM 184496107 440,647 -612,359 22,623 24,758.5746
2020-02-06 2019-12-31 13F/A-1 CLEAN HARBORS COM 184496107 1,053,006 -317,209 -23.15 90,295 -14.64 0.1096
2020-02-04 2019-12-31 13F CLEAN HARBORS COM 184496107 1,075,473 -294,742 88,426 105,995.4191
2019-11-12 2019-09-30 13F CLEAN HARBORS COM 184496107 1,370,215 -202,360 -12.87 105,780 -5.39 0.1361
2019-08-15 2019-06-30 13F CLEAN HARBORS COM 184496107 1,572,575 -9,959 -0.63 111,810 -1.23 0.2255
2019-05-03 2019-03-31 13F CLEAN HARBORS COM 184496107 1,582,534 502,754 46.56 113,198 112.43 0.2575
2019-05-02 2018-12-31 13F/A-1 CLEAN HARBORS COM 184496107 1,079,780 442,425 69.42 53,288 16.80 0.1338
2019-02-05 2018-12-31 13F CLEAN HARBORS COM 184496107 1,079,780 442,425 53,288
2018-11-01 2018-09-30 13F CLEAN HARBORS COM 184496107 637,355 637,355 45,622 0.0941
2018-02-01 2017-12-31 13F CLEAN HARBORS COM 184496107 0 -672,846 -100.00 0 -100.00
2017-10-27 2017-09-30 13F CLEAN HARBORS COM 184496107 672,846 -169,075 -20.08 38,150 -18.84 0.0857
2017-08-07 2017-06-30 13F CLEAN HARBORS COM 184496107 841,921 -141,804 -14.42 47,004 -14.09 0.1100
2017-05-10 2017-03-31 13F CLEAN HARBORS COM 184496107 983,725 188,798 23.75 54,715 23.68 0.1303
2017-02-09 2016-12-31 13F Clean Harbors COM 184496107 794,927 100,839 14.53 44,238 32.84 0.1116
2016-11-02 2016-09-30 13F CLEAN HBRS INC COM COM 184496107 694,088 694,088 0.00 33,302 0.0933
2015-02-11 2014-12-31 13F CLEAN HARBORS Common Stock 184496107 0 -447,400 -100.00 0 -100.00
2014-10-16 2014-09-30 13F CLEAN HARBORS Common Stock 184496107 447,400 -6,400 -1.41 24,125 -17.26 0.1818
2014-08-08 2014-06-30 13F Clean Harbors Common Stock 184496107 453,800 -110,000 -19.51 29,158 -5.61 0.1977
2014-05-06 2014-03-31 13F Clean Harbors Common Stock 184496107 563,800 150,600 36.45 30,891 24.69 0.2096
2014-02-12 2013-12-31 13F Clean Harbors Common Stock 184496107 413,200 413,200 24,775 0.1747
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.