Clean Harbors, Inc.
US ˙ NYSE ˙ US1844961078

SecurityCLH / Clean Harbors, Inc.
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership209 shares
Latest Disclosed Value $ 48,316
First Horizon Advisors, Inc. reports 23.72% decrease in ownership of CLH / Clean Harbors, Inc.

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 209 shares of Clean Harbors, Inc. (US:CLH) valued at $48,317 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 274 shares of Clean Harbors, Inc.. This represents a change in shares of -23.72% during the quarter. The current value of the position is $59,962 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)
2025-08-06 2025-06-30 13F CLEAN HARBORS COMMON STOCK 184496107 209 -65 -23.72 48 -11.11 0.0013
2025-04-28 2025-03-31 13F CLEAN HARBORS COMMON STOCK 184496107 274 1 0.37 54 -12.90 0.0015
2025-02-03 2024-12-31 13F CLEAN HARBORS COMMON STOCK 184496107 273 29 11.89 63 6.90 0.0018
2024-11-08 2024-09-30 13F CLEAN HARBORS COMMON STOCK 184496107 244 35 16.75 59 23.40 0.0016
2024-07-19 2024-06-30 13F CLEAN HARBORS COMMON STOCK 184496107 209 -31 -12.92 47 -2.08 0.0014
2024-04-26 2024-03-31 13F CLEAN HARBORS COMMON STOCK 184496107 240 -30 -11.11 48 2.13 0.0015
2024-02-06 2023-12-31 13F CLEAN HARBORS COMMON STOCK 184496107 270 -34 -11.18 47 -6.00 0.0016
2023-10-27 2023-09-30 13F CLEAN HARBORS COMMON STOCK 184496107 304 78 34.51 51 35.14 0.0018
2023-08-03 2023-06-30 13F CLEAN HARBORS COMMON STOCK 184496107 226 0 0.00 37 15.63 0.0013
2023-05-15 2023-03-31 13F CLEAN HARBORS COMMON STOCK 184496107 226 0 0.00 32 28.00 0.0012
2023-02-10 2022-12-31 13F CLEAN HARBORS COMMON STOCK 184496107 226 -90 -28.48 26 -26.47 0.0010
2022-11-09 2022-09-30 13F CLEAN HARBORS COMMON STOCK 184496107 316 -23 -6.78 34 17.24 0.0014
2022-08-02 2022-06-30 13F CLEAN HARBORS COMMON STOCK 184496107 339 203 149.26 29 93.33 0.0010
2022-05-10 2022-03-31 13F CLEAN HBRS COMMON STOCK 184496107 136 12 9.68 15 25.00 0.0006
2022-02-09 2021-12-31 13F CLEAN HBRS COMMON STOCK 184496107 124 0 0.00 12 -7.69 0.0004
2021-11-15 2021-09-30 13F/A-1 CLEAN HBRS COMMON STOCK 184496107 124 124 13 0.0004
2021-11-09 2021-09-30 13F CLEAN HBRS COMMON STOCK 184496107 124 124 13 0.0002
2017-05-02 2017-03-31 13F CLEAN HBRS COMMON STOCK 184496107 0 -606 -100.00 0 -100.00
2017-02-13 2016-12-31 13F CLEAN HBRS COMMON STOCK 184496107 606 0 0.00 28 0.00 0.0036
2016-10-28 2016-09-30 13F CLEAN HBRS COMMON STOCK 184496107 606 200 49.26 28 33.33 0.0036
2016-07-29 2016-06-30 13F CLEAN HBRS COMMON STOCK 184496107 406 -265 -39.49 21 -32.26 0.0028
2016-05-09 2016-03-31 13F CLEAN HBRS COMMON STOCK 184496107 671 138 25.89 31 40.91 0.0035
2016-02-08 2015-12-31 13F CLEAN HBRS COMMON STOCK 184496107 533 -781 -59.44 22 -61.40 0.0039
2015-11-06 2015-09-30 13F CLEAN HBRS COMMON STOCK 184496107 1,314 0 0.00 57 -18.57 0.0088
2015-08-03 2015-06-30 13F/A-1 CLEAN HBRS COMMON STOCK 184496107 1,314 -113 -7.92 70 -12.50 0.0102
2015-07-31 2015-06-30 13F CLEAN HBRS COMMON STOCK 184496107 9 70
2015-05-04 2015-03-31 13F CLEAN HBRS COMMON STOCK 184496107 1,427 1,427 0.00 80 0.0116
2015-02-05 2014-12-31 13F CLEAN HBRS COMMON STOCK 184496107 0 -1,133 -100.00 0 -100.00
2014-11-13 2014-09-30 13F/A-1 CLEAN HBRS COMMON STOCK 184496107 1,133 358 46.19 61 35.56 0.0095
2014-11-13 2014-09-30 13F CLEAN HBRS COMMON STOCK 184496107 1,133 358 61 0.0062
2014-08-07 2014-06-30 13F CLEAN HBRS COMMON STOCK 184496107 775 -33 -4.08 45 4.65 0.0065
2014-05-02 2014-03-31 13F CLEAN HARBORS COMMON STOCK 184496107 808 715 768.82 43 975.00 0.0060
2014-02-07 2013-12-31 13F CLEAN HARBORS COMMON STOCK 184496107 93 93 4 0.0006
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.