Clean Harbors, Inc.
US ˙ NYSE ˙ US1844961078

SecurityCLH / Clean Harbors, Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Algert Global Llc closes position in CLH / Clean Harbors, Inc.

On February 17, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 0 shares of Clean Harbors, Inc. (US:CLH) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 13,966 shares of Clean Harbors, Inc.. The current value of the position is $0 USD.

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)
2026-02-17 2025-12-31 13F CLEAN HARBORS COM 184496107 0 -100.00 0
2025-11-14 2025-09-30 13F CLEAN HARBORS COM 184496107 13,966 2,130 18.00 3 50.00 0.0543
2025-08-14 2025-06-30 13F LEAN HARBORS COM 184496107 11,836 0 0.00 3 0.00 0.0573
2025-05-13 2025-03-31 13F CLEAN HARBORS COM 184496107 11,836 -14,320 -54.75 2 -66.67 0.0577
2025-02-14 2024-12-31 13F CLEAN HARBORS COM 184496107 26,156 -19,803 -43.09 6 -45.45 0.1417
2024-11-12 2024-09-30 13F CLEAN HARBORS COM 184496107 45,959 22,082 92.48 11 120.00 0.2987
2024-08-15 2024-06-30 13F CLEAN HARBORS COM 184496107 23,877 17,730 288.43 5 400.00 0.1796
2024-05-15 2024-03-31 13F CLEAN HARBORS COM 184496107 6,147 580 10.42 1 0.0484
2024-02-14 2023-12-31 13F CLEAN HARBORS COM 184496107 5,567 -11,190 -66.78 1 -100.00 0.0391
2023-11-13 2023-09-30 13F CLEAN HARBORS COM 184496107 16,757 -9,360 -35.84 3 -50.00 0.1318
2023-08-14 2023-06-30 13F CLEAN HARBORS COM 184496107 26,117 -1,240 -4.53 4 33.33 0.1869
2023-05-12 2023-03-31 13F CLEAN HARBORS COM 184496107 27,357 -24,417 -47.16 4 -40.00 0.1841
2023-02-14 2022-12-31 13F CLEAN HARBORS COM 184496107 51,774 926 1.82 6 -99.91 0.3273
2022-11-15 2022-09-30 13F CLEAN HARBORS COM 184496107 50,848 19,496 62.18 5,592 103.42 0.3379
2022-08-15 2022-06-30 13F CLEAN HARBORS COM 184496107 31,352 0 0.00 2,749 -21.46 0.2067
2022-05-16 2022-03-31 13F CLEAN HARBORS COM 184496107 31,352 27,624 740.99 3,500 840.86 0.2291
2022-02-14 2021-12-31 13F CLEAN HARBORS COM 184496107 3,728 -3,700 -49.81 372 -51.81 0.0465
2021-11-15 2021-09-30 13F CLEAN HARBORS COM 184496107 7,428 7,428 772 0.1027
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.