Clean Harbors, Inc.
MX ˙ BMV ˙ US1844961078
SecurityMX:CLH1 / Clean Harbors, Inc.
InstitutionIcon Wealth Advisors, LLC
Latest Disclosed Ownership1,122 shares
Latest Disclosed Value $ 343,826
Icon Wealth Advisors, LLC reports 1.72% increase in ownership of CLH1 / Clean Harbors, Inc.

On May 12, 2026 - Icon Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 1,122 shares of Clean Harbors, Inc. (MX:CLH1) valued at $343,826 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,103 shares of Clean Harbors, Inc.. This represents a change in shares of 1.72% 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)
2026-05-12 2026-03-31 13F CLEAN HARBORS INC COM Stock 184496107 1,122 19 1.72 344 32.95 0.0223
2026-02-13 2025-12-31 13F CLEAN HARBORS INC COM Stock 184496107 1,103 13 1.19 259 1.98 0.0172
2025-11-14 2025-09-30 13F CLEAN HARBORS INC COM Stock 184496107 1,090 139 14.62 253 15.53 0.0172
2025-08-14 2025-06-30 13F CLEAN HARBORS INC COM Stock 184496107 951 315 49.53 220 75.20 0.0157
2025-05-15 2025-03-31 13F CLEAN HARBORS INC COM Stock 184496107 636 55 9.47 125 -6.02 0.0103
2025-02-14 2024-12-31 13F CLEAN HARBORS INC COM Stock 184496107 581 0 0.00 134 -5.00 0.0110
2024-11-14 2024-09-30 13F/A-1 CLEAN HARBORS INC COM Stock 184496107 581 45 8.40 140 10.24 0.0117
2024-11-12 2024-09-30 13F CLEAN HARBORS INC COM Stock 184496107 3,288 2,752 116 0.0097
2024-08-14 2024-06-30 13F CLEAN HARBORS INC COM Stock 184496107 536 536 128 0.0114
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.