Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership53,110 shares
Latest Disclosed Value $ 15,228,172
Ameriprise Financial Inc reports 0.19% increase in ownership of CLH1 / Clean Harbors, Inc.

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 53,110 shares of Clean Harbors, Inc. (MX:CLH1) valued at $15,228,172 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 53,011 shares of Clean Harbors, Inc.. This represents a change in shares of 0.19% 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 53,110 99 0.19 15,228 22.52 0.0007
2026-02-17 2025-12-31 13F CLEAN HARBORS COM 184496107 53,011 -2,000 -3.64 12,430 -2.70 0.0028
2025-11-14 2025-09-30 13F CLEAN HARBORS COM 184496107 55,011 -1,460 -2.59 12,775 -2.14 0.0029
2025-08-14 2025-06-30 13F CLEAN HARBORS COM 184496107 56,471 -15 -0.03 13,055 17.30 0.0032
2025-05-14 2025-03-31 13F CLEAN HARBORS COM 184496107 56,486 -39,684 -41.26 11,130 -49.72 0.0030
2025-02-14 2024-12-31 13F CLEAN HARBORS COM 184496107 96,170 -8,424 -8.05 22,133 -12.46 0.0057
2024-11-14 2024-09-30 13F CLEAN HARBORS COM 184496107 104,594 -210,740 -66.83 25,281 -64.55 0.0065
2024-08-14 2024-06-30 13F CLEAN HARBORS COM 184496107 315,334 -86,512 -21.53 71,313 -11.85 0.0193
2024-05-15 2024-03-31 13F CLEAN HARBORS COM 184496107 401,846 27,656 7.39 80,896 23.88 0.0223
2024-02-14 2023-12-31 13F CLEAN HARBORS COM 184496107 374,190 -20,055 -5.09 65,300 -1.04 0.0195
2023-11-14 2023-09-30 13F CLEAN HARBORS COM 184496107 394,245 150,251 61.58 65,983 64.47 0.0217
2023-08-14 2023-06-30 13F CLEAN HARBORS COM 184496107 243,994 118,053 93.74 40,120 123.45 0.0126
2023-05-22 2023-03-31 13F/A-1 CLEAN HARBORS COM 184496107 125,941 -7,178 -5.39 17,955 18.19 0.0059
2023-05-15 2023-03-31 13F CLAROS MORTGAGE TRUST COM 184496107 125,941 -7,178 17,955 0.0011
2023-02-14 2022-12-31 13F CLEAN HARBORS COM 184496107 133,119 -36,353 -21.45 15,191 -18.49 0.0052
2022-11-14 2022-09-30 13F CLEAN HARBORS COM 184496107 169,472 6,759 4.15 18,638 30.66 0.0069
2022-08-15 2022-06-30 13F CLEAN HARBORS COM 184496107 162,713 -120,671 -42.58 14,264 -54.91 0.0050
2022-05-16 2022-03-31 13F CLEAN HARBORS COM 184496107 283,384 -118,772 -29.53 31,636 -21.15 0.0093
2022-02-14 2021-12-31 13F CLEAN HARBORS COM 184496107 402,156 289,529 257.07 40,122 242.92 0.0111
2021-11-15 2021-09-30 13F CLEAN HARBORS COM 184496107 112,627 -2,211 -1.93 11,700 9.39 0.0037
2021-08-16 2021-06-30 13F CLEAN HARBORS COM 184496107 114,838 -5,471 -4.55 10,696 5.76 0.0033
2021-05-17 2021-03-31 13F CLEAN HARBORS COM 184496107 120,309 7,193 6.36 10,113 17.47 0.0034
2021-02-12 2020-12-31 13F CLEAN HARBORS COM 184496107 113,116 -9,868 -8.02 8,609 24.95 0.0031
2020-11-16 2020-09-30 13F CLEAN HARBORS COM 184496107 122,984 -5,974 -4.63 6,890 -10.91 0.0028
2020-08-14 2020-06-30 13F CLEAN HARBORS COM 184496107 128,958 -14,210 -9.93 7,734 5.22 0.0033
2020-05-15 2020-03-31 13F CLEAN HARBORS COM 184496107 143,168 -1,706 -1.18 7,350 -40.84 0.0039
2020-02-14 2019-12-31 13F CLEAN HARBORS COM 184496107 144,874 25,684 21.55 12,423 34.99 0.0052
2019-11-14 2019-09-30 13F CLEAN HARBORS COM 184496107 119,190 -3,959 -3.21 9,203 5.11 0.0041
2019-08-14 2019-06-30 13F CLEAN HARBORS COM 184496107 123,149 -3,510 -2.77 8,756 -3.36 0.0039
2019-05-15 2019-03-31 13F CLEAN HARBORS COM 184496107 126,659 -5,432 -4.11 9,060 38.98 0.0042
2019-02-14 2018-12-31 13F CLEAN HARBORS COM 184496107 132,091 -27,083 -17.01 6,519 -42.79 0.0033
2018-11-14 2018-09-30 13F CLEAN HARBORS COM 184496107 159,174 18,282 12.98 11,394 45.57 0.0040
2018-08-14 2018-06-30 13F CLEAN HARBORS COM 184496107 140,892 1,792 1.29 7,827 15.27 0.0035
2018-05-14 2018-03-31 13F CLEAN HARBORS COM 184496107 139,100 -3,254 -2.29 6,790 -11.99 0.0031
2018-02-12 2017-12-31 13F CLEAN HARBORS COM 184496107 142,354 -6,641 -4.46 7,715 -8.68 0.0035
2017-11-07 2017-09-30 13F CLEAN HARBORS COM 184496107 148,995 2,323 1.58 8,448 3.16 0.0040
2017-08-10 2017-06-30 13F CLEAN HARBORS COM 184496107 146,672 4,116 2.89 8,189 3.28 0.0041
2017-05-05 2017-03-31 13F CLEAN HARBORS COM 184496107 142,556 2,865 2.05 7,929 1.99 0.0041
2017-02-03 2016-12-31 13F CLEAN HARBORS COM 184496107 139,691 1,612 1.17 7,774 17.34 0.0042
2016-11-08 2016-09-30 13F CLEAN HARBORS COM 184496107 138,079 3,828 2.85 6,625 -5.30 0.0037
2016-08-08 2016-06-30 13F CLEAN HARBORS COM 184496107 134,251 2,055 1.55 6,996 7.25 0.0041
2016-05-12 2016-03-31 13F CLEAN HARBORS COM 184496107 132,196 -42,646 -24.39 6,523 -10.42 0.0039
2016-02-11 2015-12-31 13F CLEAN HARBORS COM 184496107 174,842 -16,683 -8.71 7,282 -13.53 0.0043
2015-11-12 2015-09-30 13F CLEAN HARBORS COM 184496107 191,525 -22,841 -10.66 8,421 -26.90 0.0052
2015-08-13 2015-06-30 13F CLEAN HARBORS COM 184496107 214,366 928 0.43 11,520 -4.94 0.0066
2015-05-14 2015-03-31 13F CLEAN HARBORS COM 184496107 213,438 13,480 6.74 12,119 26.13 0.0070
2015-02-13 2014-12-31 13F CLEAN HARBORS COM 184496107 199,958 -69,500 -25.79 9,608 -33.87 0.0056
2014-11-14 2014-09-30 13F CLEAN HARBORS COM 184496107 269,458 -6,055 -2.20 14,529 -17.92 0.0087
2014-08-13 2014-06-30 13F CLEAN HARBORS COM 184496107 275,513 -39,534 -12.55 17,702 2.55 0.0104
2014-05-14 2014-03-31 13F CLEAN HARBORS COM 184496107 315,047 3,149 1.01 17,261 -7.70 0.0104
2014-02-14 2013-12-31 13F CLEAN HARBORS COM 184496107 311,898 141,199 82.72 18,701 86.77 0.0113
2013-11-14 2013-09-30 13F CLEAN HARBORS COM 184496107 170,699 11,185 7.01 10,013 24.23 0.0066
2013-08-14 2013-06-30 13F CLEAN HARBORS COM 184496107 159,514 159,514 8,060 0.0056
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.