Clean Harbors Inc (CLH) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

890,703Shares held by institutions

$249,628,423Value of institutional holdings

91.66%Institutional ownership %

0.99%Shares Changed QoQ

578No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Clean Harbors Inc (NYSE:CLH) showed up in the 13F filings of 551 institutional investors as of December 2025.

They owned 96.2% of outstanding stock in December 2025, up from 94.2% the prior quarter.
Their total shares held in CLH increased 5.61% from the prior quarter, while the number of investors in Clean Harbors decreased 2.3% year over year.
Of these 551 holders, 244 added to their stakes in Clean Harbors, 217 trimmed positions, and 90 made no changes.
The aggregate institutional position in Clean Harbors amounted to 51.65Mn shares as of December 2025, up by 2.74Mn shares quarter on quarter, and up 945.76K shares year over year.
WELLINGTON MANAGEMENT GROUP LLP holds the largest position in CLH at 5.18Mn shares as of December 31, 2025, or 9.65% of shares outstanding.
Top purchasers of CLH stock for the quarter ending December 2025 included LONE PINE CAPITAL LLC (1.38Mn), NORGES BANK (649.08K), Palestra Capital Management LLC (569.99K), NORDEA INVESTMENT MANAGEMENT AB (569.39K), UBS Group AG (363.72K).
Top sellers of CLH stock for the quarter ending December 2025 included Bank Of America Corp /De/ (497.12K), WELLINGTON MANAGEMENT GROUP LLP (391.61K), Handelsbanken Fonder AB (287.5K), Jpmorgan Chase & Co (240.23K), AMERICAN CENTURY COMPANIES INC (204.77K).
Clean Harbors's 10 largest shareholders as of December 2025 include WELLINGTON MANAGEMENT GROUP LLP (5.18Mn), BlackRock, Inc. (4.6Mn), VANGUARD GROUP INC (4.49Mn), D1 Capital Partners L.P. (2.78Mn), Janus Henderson Group Plc (2.38Mn), Pictet Asset Management Holding SA (1.89Mn), State Street Corp (1.5Mn), LONE PINE CAPITAL LLC (1.38Mn), Clearbridge Investments, LLC (1.33Mn), SNYDER CAPITAL MANAGEMENT L P (1.15Mn) per Business Quant data.

551 Institutional Holders

890,703 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	66,733	1.47%	$0.00
WELLINGTON MANAGEMENT GROUP LLP	31 Dec, 2025	-391,614	-7.03%	$0.00
D1 Capital Partners L.P.	31 Dec, 2025	336,299	13.75%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	49,321	94.13%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-62,721	-1.38%	$0.00
Pictet Asset Management Holding SA	31 Dec, 2025	-185,786	-8.97%	$0.00
Danica Pension, Livsforsikringsaktieselskab	31 Dec, 2025	-41,930	-50.00%	$0.00
Janus Henderson Group Plc	31 Dec, 2025	215,659	9.98%	$0.00
Durable Capital Partners LP	31 Dec, 2025	261,097	45.51%	$0.00
Barclays Plc	31 Dec, 2025	-41,353	-50.46%	$0.00
State Street Corp	31 Dec, 2025	-12,525	-0.83%	$0.00
UBS Group AG	31 Dec, 2025	363,715	188.96%	$0.00
LONE PINE CAPITAL LLC	31 Dec, 2025	1,378,125	0.00%	$0.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	-45,007	-11.71%	$0.00
Clearbridge Investments, LLC	31 Dec, 2025	-96,925	-6.80%	$0.00
Quantinno Capital Management LP	31 Dec, 2025	234,180	243.78%	$0.00
SNYDER CAPITAL MANAGEMENT L P	31 Dec, 2025	1,684	0.15%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	238,709	0.00%	$0.00
NORDEA INVESTMENT MANAGEMENT AB	31 Dec, 2025	569,388	120.84%	$0.00
12th Street Asset Management Company, LLC	31 Dec, 2025	-3,872	-1.81%	$0.00

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