Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership6,726 shares
Latest Disclosed Value $ 1,928,547
Pnc Financial Services Group, Inc. reports 11.63% increase in ownership of CLH1 / Clean Harbors, Inc.

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 6,726 shares of Clean Harbors, Inc. (MX:CLH1) valued at $1,928,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 6,025 shares of Clean Harbors, Inc.. This represents a change in shares of 11.63% 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 6,726 701 11.63 1,929 36.54 0.0011
2026-02-06 2025-12-31 13F CLEAN HARBORS COM 184496107 6,025 -78 -1.28 1,413 -0.35 0.0008
2025-11-07 2025-09-30 13F CLEAN HARBORS COM 184496107 6,103 647 11.86 1,417 12.37 0.0009
2025-08-08 2025-06-30 13F CLEAN HARBORS COM 184496107 5,456 571 11.69 1,261 31.08 0.0008
2025-05-09 2025-03-31 13F CLEAN HARBORS COM 184496107 4,885 221 4.74 963 -10.34 0.0005
2025-02-07 2024-12-31 13F CLEAN HARBORS COM 184496107 4,664 -28,491 -85.93 1,073 -86.61 0.0007
2024-11-08 2024-09-30 13F CLEAN HARBORS COM 184496107 33,155 -200 -0.60 8,014 6.23 0.0051
2024-08-09 2024-06-30 13F CLEAN HARBORS COM 184496107 33,355 -72 -0.22 7,543 12.10 0.0050
2024-05-10 2024-03-31 13F CLEAN HARBORS COM 184496107 33,427 2,787 9.10 6,729 25.87 0.0047
2024-03-22 2023-12-31 13F/A-1 CLEAN HARBORS COM 184496107 30,640 -107 -0.35 5,347 3.91 0.0042
2024-02-09 2023-12-31 13F CLEAN HARBORS COM 184496107 30,640 -107 5,347 0.0009
2023-11-13 2023-09-30 13F CLEAN HARBORS COM 184496107 30,747 -68 -0.22 5,146 1.56 0.0044
2023-08-11 2023-06-30 13F CLEAN HARBORS COM 184496107 30,815 -159 -0.51 5,067 14.75 0.0043
2023-05-15 2023-03-31 13F CLEAN HARBORS COM 184496107 30,974 5 0.02 4,416 24.93 0.0039
2023-02-10 2022-12-31 13F CLEAN HARBORS COM 184496107 30,969 34 0.11 3,534 3.85 0.0034
2022-11-10 2022-09-30 13F CLEAN HARBORS COM 184496107 30,935 -82 -0.26 3,403 25.11 0.0036
2022-08-12 2022-06-30 13F CLEAN HARBORS COM 184496107 31,017 -399 -1.27 2,720 -22.44 0.0027
2022-05-12 2022-03-31 13F CLEAN HARBORS COM 184496107 31,416 864 2.83 3,507 15.02 0.0031
2022-02-11 2021-12-31 13F CLEAN HBRS Common Stock 184496107 30,552 -196 -0.64 3,049 -4.54 0.0025
2021-11-05 2021-09-30 13F CLEAN HBRS Common Stock 184496107 30,748 127 0.41 3,194 12.03 0.0030
2021-08-06 2021-06-30 13F CLEAN HARBORS COM 184496107 30,621 -34 -0.11 2,851 10.68 0.0026
2021-05-07 2021-03-31 13F CLEAN HARBORS COM 184496107 30,655 320 1.05 2,576 11.61 0.0025
2021-02-12 2020-12-31 13F CLEAN HARBORS COM 184496107 30,335 254 0.84 2,308 36.97 0.0023
2020-11-06 2020-09-30 13F CLEAN HARBORS COM 184496107 30,081 -3,297 -9.88 1,685 -15.88 0.0021
2020-08-28 2020-06-30 13F/A-1 CLEAN HARBORS COM 184496107 33,378 646 1.97 2,003 19.16 0.0027
2020-08-07 2020-06-30 13F CLEAN HARBORS COM 184496107 33,378 646 2,003 415.8997
2020-05-08 2020-03-31 13F CLEAN HARBORS COM 184496107 32,732 358 1.11 1,681 -39.42 0.0021
2020-02-07 2019-12-31 13F CLEAN HARBORS COM 184496107 32,374 197 0.61 2,775 11.76 0.0027
2019-11-08 2019-09-30 13F CLEAN HARBORS COM 184496107 32,177 166 0.52 2,483 9.14 0.0025
2019-08-09 2019-06-30 13F CLEAN HARBORS COM 184496107 32,011 516 1.64 2,275 0.98 0.0022
2019-05-10 2019-03-31 13F CLEAN HARBORS COM 184496107 31,495 587 1.90 2,253 47.74 0.0023
2019-02-08 2018-12-31 13F CLEAN HARBORS COM 184496107 30,908 536 1.76 1,525 -29.85 0.0017
2018-11-09 2018-09-30 13F CLEAN HARBORS COM 184496107 30,372 -4,927 -13.96 2,174 10.86 0.0021
2018-08-10 2018-06-30 13F CLEAN HARBORS COM 184496107 35,299 357 1.02 1,961 15.01 0.0019
2018-05-11 2018-03-31 13F CLEAN HARBORS COM 184496107 34,942 -6,639 -15.97 1,705 -24.36 0.0017
2018-02-09 2017-12-31 13F CLEAN HARBORS COM 184496107 41,581 271 0.66 2,254 -3.76 0.0022
2017-11-13 2017-09-30 13F CLEAN HARBORS COM 184496107 41,310 -767 -1.82 2,342 -0.30 0.0024
2017-08-11 2017-06-30 13F CLEAN HARBORS COM 184496107 42,077 473 1.14 2,349 1.47 0.0025
2017-05-12 2017-03-31 13F CLEAN HARBORS COM 184496107 41,604 119 0.29 2,315 0.26 0.0026
2017-02-10 2016-12-31 13F CLEAN HARBORS COM 184496107 41,485 25 0.06 2,309 16.09 0.0026
2016-11-04 2016-09-30 13F CLEAN HARBORS COM 184496107 41,460 44 0.11 1,989 -7.83 0.0023
2016-08-05 2016-06-30 13F CLEAN HARBORS COM 184496107 41,416 196 0.48 2,158 6.10 0.0025
2016-05-06 2016-03-31 13F CLEAN HARBORS COM 184496107 41,220 -243 -0.59 2,034 17.78 0.0024
2016-02-05 2015-12-31 13F CLEAN HARBORS COM 184496107 41,463 398 0.97 1,727 -4.37 0.0020
2015-11-06 2015-09-30 13F CLEAN HARBORS COM 184496107 41,065 -88 -0.21 1,806 -18.32 0.0022
2015-08-05 2015-06-30 13F CLEAN HARBORS COM 184496107 41,153 174 0.42 2,211 -4.98 0.0025
2015-05-08 2015-03-31 13F CLEAN HARBORS COM 184496107 40,979 9,989 32.23 2,327 56.28 0.0026
2015-02-06 2014-12-31 13F/A-1 CLEAN HARBORS COM 184496107 30,990 -9,977 -24.35 1,489 -32.59 0.0016
2015-02-06 2014-12-31 13F CLEAN HARBORS COM 184496107 30,990 1,489
2014-11-07 2014-09-30 13F CLEAN HARBORS COM 184496107 40,967 464 1.15 2,209 -15.10 0.0026
2014-08-08 2014-06-30 13F CLEAN HARBORS COM 184496107 40,503 6,895 20.52 2,602 41.34 0.0033
2014-05-09 2014-03-31 13F CLEAN HARBORS COM 184496107 33,608 -5,086 -13.14 1,841 -20.68 0.0024
2014-02-07 2013-12-31 13F CLEAN HARBORS COM 184496107 38,694 12,315 46.68 2,321 49.84 0.0031
2013-11-01 2013-09-30 13F CLEAN HARBORS COM 184496107 26,379 900 3.53 1,549 20.36 0.0023
2013-08-02 2013-06-30 13F CLEAN HARBORS COM 184496107 25,479 25,479 1,287 0.0019
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.