Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionAllstate Corp
Latest Disclosed Ownership5,892 shares
Latest Disclosed Value $ 1,689,413
Allstate Corp ownership in CLH1 / Clean Harbors, Inc.

On May 11, 2026 - Allstate Corp filed a 13F-HR form disclosing ownership of 5,892 shares of Clean Harbors, Inc. (MX:CLH1) valued at $1,689,413 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 16, 2022 disclosing 0 shares of Clean Harbors, Inc..

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 ORD Equity 184496107 5,892 5,892 1,689 0.0167
2022-05-16 2022-03-31 13F CLEAN HARBORS EQU 184496107 0 -7,586 -100.00 0 -100.00
2022-02-15 2021-12-31 13F CLEAN HARBORS EQU 184496107 7,586 -264 -3.36 757 -7.12 0.0145
2021-11-15 2021-09-30 13F CLEAN HARBORS EQU 184496107 7,850 0 0.00 815 11.49 0.0337
2021-08-16 2021-06-30 13F CLEAN HARBORS EQU 184496107 7,850 163 2.12 731 13.16 0.0245
2021-05-14 2021-03-31 13F CLEAN HARBORS EQU 184496107 7,687 0 0.00 646 10.43 0.0203
2021-02-12 2020-12-31 13F CLEAN HARBORS EQU 184496107 7,687 0 0.00 585 35.73 0.0182
2020-11-13 2020-09-30 13F CLEAN HARBORS EQU 184496107 7,687 738 10.62 431 3.36 0.0140
2020-08-13 2020-06-30 13F CLEAN HARBORS EQU 184496107 6,949 571 8.95 417 27.52 0.0143
2020-05-15 2020-03-31 13F CLEAN HARBORS COMMON 184496107 6,378 3,275 105.54 327 22.93 0.0128
2020-02-14 2019-12-31 13F CLEAN HARBORS COMMON 184496107 3,103 3,103 266 0.0048
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.