Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionAllianz Asset Management GmbH
Latest Disclosed Ownership40,962 shares
Latest Disclosed Value $ 11,745,034
Allianz Asset Management GmbH reports 2.56% decrease in ownership of CLH1 / Clean Harbors, Inc.

On May 11, 2026 - Allianz Asset Management GmbH filed a 13F-HR form disclosing ownership of 40,962 shares of Clean Harbors, Inc. (MX:CLH1) valued at $11,745,034 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 42,040 shares of Clean Harbors, Inc.. This represents a change in shares of -2.56% 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)
2026-05-11 2026-03-31 13F CLEAN HARBORS COM 184496107 40,962 -1,078 -2.56 11,745 19.15 0.0123
2026-02-11 2025-12-31 13F CLEAN HARBORS COM 184496107 42,040 -143,315 -77.32 9,858 -77.10 0.0100
2025-11-04 2025-09-30 13F CLEAN HARBORS COM 184496107 185,355 -8,645 -4.46 43,043 -4.02 0.0481
2025-07-28 2025-06-30 13F CLEAN HARBORS COM 184496107 194,000 -82,896 -29.94 44,849 -17.82 0.0537
2025-05-05 2025-03-31 13F CLEAN HARBORS COM 184496107 276,896 -20,170 -6.79 54,576 -20.17 0.0714
2025-02-03 2024-12-31 13F CLEAN HARBORS COM 184496107 297,066 99,591 50.43 68,367 43.23 0.0912
2024-11-13 2024-09-30 13F CLEAN HARBORS COM 184496107 197,475 80,264 68.48 47,732 80.07 0.0667
2024-08-13 2024-06-30 13F CLEAN HARBORS COM 184496107 117,211 46,132 64.90 26,507 85.26 0.0393
2024-05-14 2024-03-31 13F CLEAN HARBORS COM 184496107 71,079 3,436 5.08 14,309 21.21 0.0221
2024-02-12 2023-12-31 13F CLEAN HARBORS COM 184496107 67,643 -18,214 -21.21 11,804 -17.85 0.0193
2023-11-13 2023-09-30 13F CLEAN HARBORS COM 184496107 85,857 -4,112 -4.57 14,369 -2.87 0.0242
2023-08-14 2023-06-30 13F CLEAN HARBORS COM 184496107 89,969 -56,207 -38.45 14,794 -29.01 0.0265
2023-05-11 2023-03-31 13F CLEAN HARBORS COM 184496107 146,176 37,282 34.24 20,839 67.70 0.0370
2023-02-13 2022-12-31 13F CLEAN HARBORS COM 184496107 108,894 -52,924 -32.71 12,427 -30.18 0.0241
2022-11-08 2022-09-30 13F CLEAN HARBORS COM 184496107 161,818 -24,335 -13.07 17,796 9.04 0.0362
2022-08-12 2022-06-30 13F CLEAN HARBORS COM 184496107 186,153 -33,332 -15.19 16,320 -33.40 0.0155
2022-05-13 2022-03-31 13F CLEAN HARBORS COM 184496107 219,485 -53,039 -19.46 24,503 -9.88 0.0183
2022-02-11 2021-12-31 13F CLEAN HARBORS COM 184496107 272,524 56,103 25.92 27,190 20.95 0.0190
2021-11-10 2021-09-30 13F CLEAN HARBORS COM 184496107 216,421 94,700 77.80 22,480 98.29 0.0175
2021-08-16 2021-06-30 13F CLEAN HARBORS COM 184496107 121,721 -3,678 -2.93 11,337 7.55 0.0096
2021-05-13 2021-03-31 13F CLEAN HARBORS COM 184496107 125,399 -29,603 -19.10 10,541 -10.64 0.0102
2021-02-16 2020-12-31 13F CLEAN HARBORS COM 184496107 155,002 -183,134 -54.16 11,796 -37.74 0.0117
2020-11-13 2020-09-30 13F CLEAN HARBORS COM 184496107 338,136 -25,096 -6.91 18,946 -13.04 0.0220
2020-08-14 2020-06-30 13F CLEAN HARBORS COM 184496107 363,232 188,522 107.91 21,786 142.90 0.0252
2020-05-14 2020-03-31 13F CLEAN HARBORS COM 184496107 174,710 31,654 22.13 8,969 -26.89 0.0120
2020-02-13 2019-12-31 13F CLEAN HARBORS COM 184496107 143,056 -26,819 -15.79 12,267 -6.47 0.0112
2019-11-13 2019-09-30 13F CLEAN HARBORS COM 184496107 169,875 -18,111 -9.63 13,115 -1.88 0.0129
2019-08-08 2019-06-30 13F CLEAN HARBORS COM 184496107 187,986 1,024 0.55 13,366 -0.06 0.0124
2019-05-13 2019-03-31 13F CLEAN HARBORS COM 184496107 186,962 43,413 30.24 13,374 88.79 0.0133
2019-04-02 2018-12-31 13F/A-1 CLEAN HARBORS COM 184496107 143,549 143,549 7,084 0.0078
2019-02-13 2018-12-31 13F CLEAN HARBORS COM 184496107 143,549 7,084 0.0077
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.