Clean Harbors, Inc.
US ˙ NYSE ˙ US1844961078

SecurityCLH / Clean Harbors, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership7,228 shares
Latest Disclosed Value $ 2,072,441
Creative Planning reports 21.79% increase in ownership of CLH / Clean Harbors, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 7,228 shares of Clean Harbors, Inc. (US:CLH) valued at $2,072,484 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,935 shares of Clean Harbors, Inc.. This represents a change in shares of 21.79% during the quarter. The current value of the position is $2,071,762 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)
2026-05-12 2026-03-31 13F CLEAN HARBORS COM 184496107 7,228 1,293 21.79 2,072 48.96 0.0014
2026-02-17 2025-12-31 13F CLEAN HARBORS COM 184496107 5,935 -119 -1.97 1,392 -1.00 0.0010
2025-11-14 2025-09-30 13F CLEAN HARBORS COM 184496107 6,054 698 13.03 1,406 13.49 0.0011
2025-08-08 2025-06-30 13F CLEAN HARBORS COM 184496107 5,356 1,325 32.87 1,238 55.92 0.0011
2025-05-15 2025-03-31 13F CLEAN HARBORS COM 184496107 4,031 650 19.23 795 2.06 0.0007
2025-02-14 2024-12-31 13F CLEAN HARBORS COM 184496107 3,381 234 7.44 778 2.37 0.0008
2024-10-11 2024-09-30 13F CLEAN HARBORS COM 184496107 3,147 308 10.85 761 18.38 0.0008
2024-08-15 2024-06-30 13F CLEAN HARBORS COM 184496107 2,839 496 21.17 642 36.31 0.0007
2024-05-13 2024-03-31 13F CLEAN HARBORS COM 184496107 2,343 81 3.58 472 19.54 0.0005
2024-02-14 2023-12-31 13F CLEAN HARBORS COM 184496107 2,262 -150 -6.22 395 -2.23 0.0007
2023-11-16 2023-09-30 13F CLEAN HARBORS COM 184496107 2,412 -707 -22.67 404 -21.29 0.0005
2023-07-21 2023-06-30 13F CLEAN HARBORS COM 184496107 3,119 453 16.99 513 34.74 0.0007
2023-05-15 2023-03-31 13F CLEAN HARBORS COM 184496107 2,666 288 12.11 380 40.22 0.0005
2023-02-10 2022-12-31 13F CLEAN HARBORS COM 184496107 2,378 -1,235 -34.18 271 -31.74 0.0004
2022-11-03 2022-09-30 13F CLEAN HARBORS COM 184496107 3,613 697 23.90 397 55.08 0.0007
2022-08-15 2022-06-30 13F CLEAN HARBORS COM 184496107 2,916 47 1.64 256 -20.00 0.0004
2022-05-16 2022-03-31 13F CLEAN HARBORS COM 184496107 2,869 -121 -4.05 320 7.38 0.0005
2022-02-11 2021-12-31 13F CLEAN HARBORS COM 184496107 2,990 141 4.95 298 0.68 0.0005
2021-11-10 2021-09-30 13F CLEAN HARBORS COM 184496107 2,849 2,849 296 0.0005
2019-02-12 2018-12-31 13F/A-1 CLEAN HARBORS COM 184496107 0 -2,974 -100.00 0 -100.00
2018-10-25 2018-09-30 13F CLEAN HARBORS COM 184496107 2,974 2,974 213 0.0008
2017-10-17 2017-09-30 13F CLEAN HARBORS COM 184496107 0 -230 -100.00 0 -100.00
2017-07-12 2017-06-30 13F CLEAN HARBORS COM 184496107 230 -11 -4.56 13 0.00 0.0001
2017-04-07 2017-03-31 13F CLEAN HARBORS COM 184496107 241 -338 -58.38 13 -59.37 0.0001
2017-01-09 2016-12-31 13F CLEAN HARBORS COM 184496107 579 49 9.25 32 28.00 0.0002
2016-10-12 2016-09-30 13F CLEAN HARBORS COM 184496107 530 0 0.00 25 -10.71 0.0002
2016-07-12 2016-06-30 13F CLEAN HARBORS COM 184496107 530 0 0.00 28 7.69 0.0002
2016-04-08 2016-03-31 13F CLEAN HARBORS COM 184496107 530 -69 -11.52 26 4.00 0.0002
2016-01-11 2015-12-31 13F CLEAN HARBORS COM 184496107 599 422 238.42 25 212.50 0.0002
2015-10-09 2015-09-30 13F CLEAN HARBORS COM 184496107 177 177 0.00 8 0.0001
2015-07-09 2015-06-30 13F CLEAN HARBORS COM 184496107 0 -126 -100.00 0 -100.00
2015-04-13 2015-03-31 13F CLEAN HARBORS COM 184496107 126 126 0.00 7 0.0001
2015-01-29 2014-12-31 13F CLEAN HARBORS COM 184496107 0 -158 -100.00 0 -100.00
2014-10-10 2014-09-30 13F CLEAN HARBORS COM 184496107 158 7 4.64 9 -10.00 0.0001
2014-08-20 2014-06-30 13F CLEAN HARBORS COM 184496107 151 43 39.81 10 66.67 0.0001
2014-04-11 2014-03-31 13F CLEAN HARBORS COM 184496107 108 0 0.00 6 0.00 0.0001
2014-01-06 2013-12-31 13F CLEAN HARBORS COM 184496107 108 0 0.00 6 0.00 0.0001
2013-10-10 2013-09-30 13F CLEAN HARBORS COM 184496107 108 108 6 0.0001
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.