Clean Harbors CLH Institutional Ownership

NYSE CLH

$320.93 +1.78 (+0.56%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

658 Institutions

Increased 306 46.5%

Unchanged 106 16.1%

Reduced 246 37.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

93.48%

▲+0.03 pp QoQ

Shares Held by Institutions

49.36Mn

of 52.81Mn outstanding

▼-0.02% QoQ

Shares Outstanding

52.81Mn

3.44Mn held outside 13F filers

Institutional Investors

658

filed 13F for Jun 2026

▲+35 vs prior quarter

Net Shares Added (QoQ)

-8.21K

distributed since last quarter

Value of Holdings

$15.84Bn

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

Updated Oct 21, 2026

Clean Harbors Inc (NYSE:CLH) counted 658 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Collectively, these holders controlled 93.48% of Clean Harbors' outstanding shares in Q2 2026, up from 93.45% in Q1 2026.
Total shares held in CLH fell 0.02% from Q1 2026; the number of holders rose 14.04% from Q2 2025.
Of these 658 holders, 306 added to their positions, 246 reduced their stakes and 106 left their positions unchanged.
The aggregate institutional position in Clean Harbors was 49.36Mn shares at the end of Q2 2026, down 8.21K from the prior quarter and up 675.07K from a year earlier.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Clean Harbors with 5.08Mn shares, or 9.61% of shares outstanding.
The largest position increases in CLH for Q2 2026 were by FMR LLC (+901.48K shares), Hood River Capital Management LLC (+374.47K shares), FIL Ltd (+367.75K shares), AQR Capital Management LLC (+297.41K shares) and Citadel Advisors LLC (+279.52K shares).
The biggest cuts to CLH positions during Q2 2026 came from Pictet Asset Management Holding SA (-633.33K shares), Wellington Management Group LLP (-421.8K shares), Select Equity Group, L.P. (-403.23K shares), Two Sigma Investments, LP (-300.92K shares) and Bessemer Group Inc (-169K shares).
Per Business Quant, the top 10 investors in CLH for the quarter ended June 30, 2026 were BlackRock, Inc. (5.08Mn shares), Wellington Management Group LLP (3.16Mn shares), FMR LLC (3Mn shares), Vanguard Capital Management LLC (2.18Mn shares), Vanguard Portfolio Management LLC (1.98Mn shares), Jupiter Topco LLC (1.6Mn shares), State Street Corp (1.58Mn shares), D1 Capital Partners L.P. (1.32Mn shares), Geode Capital Management, LLC (1.13Mn shares) and Clearbridge Investments, LLC (1.13Mn shares).

Form 13F Holdings

658 Institutional Holders

Report period 30 Jun, 2026

Total shares held 49.36Mn

Of outstanding 93.48%

#	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