Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionFulton Bank, N.a.
Latest Disclosed Ownership3,239 shares
Latest Disclosed Value $ 928,718
Fulton Bank, N.a. reports 8.35% decrease in ownership of CLH1 / Clean Harbors, Inc.

On April 24, 2026 - Fulton Bank, N.a. filed a 13F-HR form disclosing ownership of 3,239 shares of Clean Harbors, Inc. (MX:CLH1) valued at $928,718 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 3,534 shares of Clean Harbors, Inc.. This represents a change in shares of -8.35% 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)
2026-04-24 2026-03-31 13F CLEAN HARBORS COM 184496107 3,239 -295 -8.35 929 12.08 0.0182
2026-01-08 2025-12-31 13F CLEAN HARBORS COM 184496107 3,534 27 0.77 829 1.72 0.0159
2025-10-21 2025-09-30 13F CLEAN HARBORS COM 184496107 3,507 -230 -6.15 814 -5.68 0.0285
2025-07-10 2025-06-30 13F CLEAN HARBORS COM 184496107 3,737 -30 -0.80 864 16.31 0.0319
2025-04-09 2025-03-31 13F CLEAN HARBORS COM 184496107 3,767 -56 -1.46 742 -15.59 0.0300
2025-01-08 2024-12-31 13F CLEAN HARBORS COM 184496107 3,823 392 11.43 880 6.03 0.0339
2024-10-07 2024-09-30 13F CLEAN HARBORS COM 184496107 3,431 -158 -4.40 829 2.22 0.0317
2024-07-09 2024-06-30 13F CLEAN HARBORS COM 184496107 3,589 166 4.85 812 17.71 0.0328
2024-04-10 2024-03-31 13F CLEAN HARBORS COM 184496107 3,423 569 19.94 689 38.35 0.0282
2024-01-24 2023-12-31 13F/A-1 CLEAN HARBORS COM 184496107 2,854 464 19.41 498 24.81 0.0224
2024-01-04 2023-12-31 13F CLEAN HARBORS COM 184496107 2,854 464 498 0.0121
2023-10-04 2023-09-30 13F CLEAN HARBORS COM 184496107 2,390 290 13.81 400 15.65 0.0199
2023-07-06 2023-06-30 13F CLEAN HARBORS COM 184496107 2,100 230 12.30 345 29.70 0.0169
2023-04-06 2023-03-31 13F CLEAN HARBORS COM 184496107 1,870 1,870 267 0.0140
2019-01-03 2018-12-31 13F CLEAN HARBORS COM 184496107 0 -4,721 -100.00 0 -100.00
2018-10-03 2018-09-30 13F CLEAN HARBORS COM 184496107 4,721 -808 -14.61 338 10.10 0.0222
2018-07-10 2018-06-30 13F CLEAN HARBORS COM 184496107 5,529 -716 -11.47 307 0.66 0.0213
2018-05-02 2018-03-31 13F CLEAN HARBORS COM 184496107 6,245 -1,025 -14.10 305 -22.59 0.0214
2018-01-04 2017-12-31 13F CLEAN HARBORS COM 184496107 7,270 223 3.16 394 -1.25 0.0278
2017-10-04 2017-09-30 13F CLEAN HARBORS COM 184496107 7,047 -1,735 -19.76 399 -18.57 0.0297
2017-07-11 2017-06-30 13F CLEAN HARBORS COM 184496107 8,782 -1,020 -10.41 490 -10.09 0.0381
2017-04-06 2017-03-31 13F CLEAN HARBORS COM 184496107 9,802 -575 -5.54 545 -5.71 0.0448
2017-01-05 2016-12-31 13F CLEAN HARBORS COM 184496107 10,377 -706 -6.37 578 8.65 0.0512
2016-10-05 2016-09-30 13F CLEAN HARBORS COM 184496107 11,083 -1,351 -10.87 532 -17.90 0.0495
2016-07-06 2016-06-30 13F CLEAN HARBORS COM 184496107 12,434 -351 -2.75 648 2.69 0.0634
2016-04-07 2016-03-31 13F CLEAN HARBORS COM 184496107 12,785 -869 -6.36 631 10.90 0.0641
2016-01-06 2015-12-31 13F CLEAN HARBORS COM 184496107 13,654 379 2.85 569 -2.57 0.0591
2015-10-05 2015-09-30 13F CLEAN HARBORS COM 184496107 13,275 141 1.07 584 -17.28 0.0659
2015-07-06 2015-06-30 13F CLEAN HARBORS COM 184496107 13,134 -52 -0.39 706 -5.61 0.0733
2015-04-23 2015-03-31 13F CLEAN HARBORS COM 184496107 13,186 -372 -2.74 748 14.90 0.0790
2015-01-07 2014-12-31 13F CLEAN HARBORS COM 184496107 13,558 2,612 23.86 651 10.34 0.0721
2014-10-27 2014-09-30 13F CLEAN HARBORS COM 184496107 10,946 -125 -1.13 590 -17.02 0.0671
2014-07-02 2014-06-30 13F CLEAN HARBORS COM 184496107 11,071 1,785 19.22 711 39.69 0.0791
2014-04-03 2014-03-31 13F CLEAN HARBORS COM 184496107 9,286 1,792 23.91 509 13.11 0.0585
2014-01-08 2013-12-31 13F CLEAN HARBORS COM 184496107 7,494 -434 -5.47 450 -3.23 0.0527
2013-10-03 2013-09-30 13F CLEAN HARBORS COM 184496107 7,928 7,928 465 0.0546
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.