Clean Harbors CLH Institutional Ownership

NYSE CLH

$309.39 -0.84 (-0.27%)

As of: Oct 1, 2026 · 11:28 AM EDT

Institutions by Trading Activity

659 Institutions

Increased 308 46.7%

Unchanged 105 15.9%

Reduced 246 37.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

94.40%

▲+0.94 pp QoQ

Shares Held by Institutions

49.85Mn

of 52.81Mn outstanding

▲+11.00% QoQ

Shares Outstanding

52.81Mn

2.95Mn held outside 13F filers

Institutional Investors

659

filed 13F for Jun 2026

▲+37 vs prior quarter

Net Shares Added (QoQ)

+4.94Mn

accumulated since last quarter

Value of Holdings

$15.47Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Clean Harbors Inc (NYSE:CLH) has 659 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 94.4% of outstanding stock in June 2026, up from 93.5% the prior quarter.
Their total shares held in CLH increased 11.0% from the prior quarter, while the number of investors in Clean Harbors increased 13.62% year over year.
Of these 659 funds, 308 grew their exposure to Clean Harbors, 246 cut back, and 105 maintained positions.
In total, institutional investors held 49.85Mn shares in Clean Harbors as of June 2026, up by 4.94Mn shares quarter on quarter, and up 1.16Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Clean Harbors with 5.08Mn shares, accounting for 9.61% of total shares outstanding.
The biggest buyers of Clean Harbors for the quarter ending June 2026 included Jupiter Topco LLC (1.6Mn), FMR LLC (901.48K), NORGES BANK (632.1K), Sixth Street Partners Management Company, L.P. (473.99K), Hood River Capital Management LLC (374.47K).
The biggest sellers of Clean Harbors for the quarter ending June 2026 included Pictet Asset Management Holding SA (633.33K), WELLINGTON MANAGEMENT GROUP LLP (421.8K), Select Equity Group, L.P. (403.23K), TWO SIGMA INVESTMENTS, LP (300.92K), BESSEMER GROUP INC (169.0K).
Per Business Quant data, the top 10 holders of Clean Harbors for the quarter ending June 2026 are BlackRock, Inc. (5.08Mn), WELLINGTON MANAGEMENT GROUP LLP (3.16Mn), FMR LLC (3.0Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.18Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.98Mn), Jupiter Topco LLC (1.6Mn), State Street Corp (1.58Mn), D1 Capital Partners L.P. (1.32Mn), GEODE CAPITAL MANAGEMENT, LLC (1.13Mn), Clearbridge Investments, LLC (1.13Mn).

Form 13F Holdings

658 Institutional Holders

Report period 30 Jun, 2026

Total shares held 49.85Mn

Of outstanding 94.40%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	5,076,220	9.61%	▲273,728	+5.70%	$1.52Bn
2	WELLINGTON MANAGEMENT GROUP LLP	0000902219	3,155,233	5.98%	▼421,801	-11.79%	$942.63Mn
3	FMR LLC	0000315066	3,002,654	5.69%	▲901,475	+42.90%	$897.04Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,182,972	4.13%	▲13,608	+0.63%	$652.16Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,983,336	3.76%	▲20,385	+1.04%	$592.52Mn
6	Jupiter Topco LLC	0002146052	1,598,574	3.03%	▲1,598,574	0.00%	$477.57Mn
7	State Street Corp	0000093751	1,582,004	3.00%	▲44,707	+2.91%	$472.62Mn
8	D1 Capital Partners L.P.	0001747057	1,315,501	2.49%	▼22,780	-1.70%	$393.01Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,129,240	2.14%	▲183,348	+19.38%	$337.43Mn
10	Clearbridge Investments, LLC	0001348883	1,126,744	2.13%	▼76,033	-6.32%	$336.61Mn
11	FIRST TRUST ADVISORS LP	0001125816	993,170	1.88%	▲214,729	+27.58%	$296.71Mn
12	SNYDER CAPITAL MANAGEMENT L P	0001050477	922,182	1.75%	▼7,145	-0.77%	$275.50Mn
13	Goldman Sachs Group Inc	0000886982	900,225	1.70%	▼28,852	-3.11%	$268.94Mn
14	Durable Capital Partners LP	0001798849	892,405	1.69%	▼158,568	-15.09%	$266.61Mn
15	FIL Ltd	0000318989	877,433	1.66%	▲367,754	+72.15%	$262.13Mn
16	BESSEMER GROUP INC	0001054074	763,028	1.44%	▼168,999	-18.13%	$227.95K
17	Select Equity Group, L.P.	0001592643	728,374	1.38%	▼403,228	-35.63%	$217.60Mn
18	NORGES BANK	0001374170	632,096	1.20%	▲632,096	0.00%	$188.84Mn
19	Pictet Asset Management Holding SA	0001993888	608,808	1.15%	▼633,334	-50.99%	$181.89Mn
20	DIMENSIONAL FUND ADVISORS LP	0000354204	606,181	1.15%	▼2,528	-0.42%	$181.10Mn

Showing 1 to 20 of 658 holders