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Clean Harbors
CLH

Overview Fund Activity

568 hedge funds and large institutions have $11.3B invested in Clean Harbors in 2025 Q2 according to their latest regulatory filings, with 74 funds opening new positions, 167 increasing their positions, 222 reducing their positions, and 58 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
568
Holders Change
+12
Holders Change %
+2.16%
% of All Funds
7.62%
Holding in Top 10
13
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-13.33%
% of All Funds
0.17%
New
74
Increased
167
Reduced
222
Closed
58
Calls
$30.7M
Puts
$56.4M
Net Calls
-$25.7M
Net Calls Change
-$9.9M

Top Buyers

1
DCP
1
D1 Capital Partners
New York
$334M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$1.33B
3
William Blair Investment Management
3
William Blair Investment Management
Illinois
$95.1M
4
VNIM
4
Vaughan Nelson Investment Management
Texas
$59.1M
5
Citadel Advisors
5
Citadel Advisors
Florida
$55.5M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$56.1M
2
Millennium Management
2
Millennium Management
New York
$16.1M
3
HRCM
3
Hood River Capital Management
Florida
$30.4M
4
UBS AM
4
UBS AM
Illinois
$167M
5
Select Equity Group
5
Select Equity Group
New York
$219M
Name Holding Trade Value Shares
Change 		Shares
Change %
QCM
601
Qsemble Capital Management
New York
– -$276K -1,399 Closed
MC
602
Machina Capital
France
– -$271K -1,374 Closed
AFCM
603
Applied Finance Capital Management
Puerto Rico
– -$252K -1,279 Closed
AWS
604
Atria Wealth Solutions
New York
– -$211K -1,072 Closed
HEIP
605
Hudson Edge Investment Partners
New Jersey
– -$210K -1,064 Closed
RWM
606
Ritholtz Wealth Management
New York
– -$202K -1,023 Closed
Walleye Capital
607
Walleye Capital
New York
– -$192K -972 Closed
Simplex Trading
608
Simplex Trading
Illinois
– -$185K -942 Closed
OAM
609
Ostrum Asset Management
France
– -$157K -795 Closed
QC
610
Quent Capital
New York
– -$147K -747 Closed
CIAM
611
Caitong International Asset Management
Hong Kong
– -$92K -467 Closed
AIP
612
Arrowpoint Investment Partners
Singapore
– -$58.1K -295 Closed
CWC
613
Carolinas Wealth Consulting
North Carolina
– -$51.6K -262 Closed
BC
614
Bayforest Capital
United Kingdom
– -$24K -122 Closed
CIM
615
Contravisory Investment Management
Massachusetts
– -$14K -71 Closed
Optiver Holding
616
Optiver Holding
Netherlands
– -$13.8K -70 Closed
RS
617
Rakuten Securities
Japan
– -$9.86K -50 Closed
BF
618
BOK Financial
Oklahoma
– -$6.7K -34 Closed
WWM
619
Wolff Wiese Magana
California
– -$4.73K -24 Closed
MG
620
Mather Group
Illinois
– -$3.15K -16 Closed
RBC
621
Roble Belko & Company
Pennsylvania
– -$3K -13 Closed
GFPC
622
Global Financial Private Client
Florida
– -$1.77K -9 Closed
PCTC
623
Perkins Coie Trust Company
Washington
– -$394 -2 Closed
RIL
624
Rothschild Investment LLC
Illinois
– -$197 -1 Closed
SFG
625
Stonebridge Financial Group
Pennsylvania
– -$197 -1 Closed
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