Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership800 shares
Latest Disclosed Value $ 239,712
Whittier Trust Co ownership in CLH1 / Clean Harbors, Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 800 shares of Clean Harbors, Inc. (MX:CLH1) valued at $239,712 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 800 shares of Clean Harbors, Inc.. This represents a change in shares of 0.00% 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)
2026-04-28 2026-03-31 13F CLEAN HARBORS common 184496107 800 0 0.00 240 22.56 0.0027
2026-01-26 2025-12-31 13F CLEAN HARBORS common 184496107 800 0 0.00 196 7.14 0.0021
2025-10-31 2025-09-30 13F CLEAN HARBORS common 184496107 800 -36 -4.31 183 -5.70 0.0021
2025-07-30 2025-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 836 36 4.50 193 22.93 0.0023
2025-05-02 2025-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 158 -14.67 0.0022
2025-02-11 2024-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 184 -4.66 0.0024
2024-10-21 2024-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 193 7.22 0.0026
2024-07-29 2024-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 181 11.80 0.0026
2024-05-02 2024-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 161 15.83 0.0023
2024-01-11 2023-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 140 4.51 0.0023
2023-10-27 2023-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 134 1.53 0.0024
2023-07-24 2023-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 132 14.91 0.0023
2023-04-21 2023-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 114 25.27 0.0021
2023-01-25 2022-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 0 0.00 91 3.41 0.0018
2022-10-21 2022-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 800 500 166.67 88 238.46 0.0018
2022-07-28 2022-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 26 -21.21 0.0005
2022-04-29 2022-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 33 10.00 0.0006
2022-01-19 2021-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 30 -3.23 0.0005
2021-11-01 2021-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 31 10.71 0.0006
2021-07-29 2021-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 28 12.00 0.0005
2021-04-26 2021-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 25 8.70 0.0005
2021-01-29 2020-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 0 0.00 23 35.29 0.0005
2020-10-30 2020-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 300 -135 -31.03 17 -34.62 0.0004
2020-07-10 2020-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 26 18.18 0.0007
2020-04-27 2020-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 22 -40.54 0.0007
2020-01-31 2019-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 37 8.82 0.0010
2019-10-18 2019-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 34 9.68 0.0010
2019-07-23 2019-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 31 0.00 0.0009
2019-04-29 2019-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 31 47.62 0.0009
2019-02-07 2018-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 21 -32.26 0.0007
2018-10-23 2018-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 31 29.17 0.0010
2018-07-27 2018-06-30 13F/A-1 CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 24 14.29 0.0008
2018-07-20 2018-06-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 1,260 825 81
2018-05-01 2018-03-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 21 -12.50 0.0007
2018-02-07 2017-12-31 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 24 -4.00 0.0008
2017-10-23 2017-09-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 25 4.17 0.0009
2017-07-20 2017-06-30 13F CLEAN HARBORS INC COM US SMALL-CAP EQUITIES 184496107 435 0 0.00 24 0.00 0.0009
2017-04-26 2017-03-31 13F CLEAN HARBORS US SMALL AND MID-CAP EQUITIES 184496107 435 0 0.00 24 0.00 0.0010
2017-01-18 2016-12-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 435 0 0.00 24 14.29 0.0010
2016-11-10 2016-09-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 435 0 0.00 21 -8.70 0.0009
2016-07-28 2016-06-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 435 -510 -53.97 23 -51.06 0.0010
2016-04-28 2016-03-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 945 435 85.29 47 123.81 0.0021
2016-02-10 2015-12-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 510 -435 -46.03 21 -50.00 0.0010
2015-11-12 2015-09-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 945 0 0.00 42 -17.65 0.0020
2015-08-13 2015-06-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 945 0 0.00 51 -5.56 0.0023
2015-05-05 2015-03-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 945 945 0.00 54 0.0025
2015-02-04 2014-12-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 0 -1,260 -100.00 0 -100.00
2014-11-07 2014-09-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 1,260 0 0.00 68 -16.05 0.0033
2014-08-04 2014-06-30 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 1,260 510 68.00 81 97.56 0.0040
2014-05-01 2014-03-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 750 0 0.00 41 -8.89 0.0021
2014-02-05 2013-12-31 13F CLEAN HARBORS INC COM US SMALL AND MID-CAP EQUITIES 184496107 750 750 45 0.0023
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.