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Energy Recovery
ERII

Overview Fund Activity

200 hedge funds and large institutions have $706M invested in Energy Recovery in 2025 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 53 increasing their positions, 71 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
200
Holders Change
+14
Holders Change %
+7.53%
% of All Funds
2.72%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
37
Increased
53
Reduced
71
Closed
20
Calls
$1.84M
Puts
$1.35M
Net Calls
+$483K
Net Calls Change
+$139K

Top Buyers

1
Select Equity Group
Select Equity Group
New York
+$8.5M
2
BlackRock
BlackRock
New York
+$6.03M
3
Vanguard Group
Vanguard Group
Pennsylvania
+$3.85M
4
Citadel Advisors
Citadel Advisors
Florida
+$3.72M
5
Legal & General Group
Legal & General Group
United Kingdom
+$3.07M

Top Sellers

1
Diamond Hill Capital Management
Diamond Hill Capital Management
Ohio
-$6.71M
2
UM
UniSuper Management
Australia
-$6.02M
3
BCM
Brown Capital Management
Maryland
-$5.14M
4
Invesco
Invesco
Georgia
-$4.04M
5
MAM
Montanaro Asset Management
United Kingdom
-$3.27M
Name Holding Trade Value Shares
Change 		Shares
Change %
AWG
26
Alpha Wave Global
New York
$4.89M -$1.75M -110,413 -26%
Deutsche Bank
27
Deutsche Bank
Germany
$4.7M -$72.4K -4,557 -2%
Citadel Advisors
28
Citadel Advisors
Florida
$4.48M +$3.72M +234,127 +489%
PA
29
Pinnacle Associates
New York
$4.44M -$178K -11,200 -4%
D.E. Shaw & Co
30
D.E. Shaw & Co
New York
$4.17M -$1.86M -116,779 -31%
DPIM
31
Duff & Phelps Investment Management
Illinois
$3.96M -$150K -9,448 -4%
RBI
32
Raiffeisen Bank International
Austria
$3.91M +$160K +10,000 +4%
Renaissance Technologies
33
Renaissance Technologies
New York
$3.84M +$812K +51,100 +27%
RHJA
34
Rice Hall James & Associates
California
$3.81M -$13.3K -836 -0.3%
NL
35
Nuveen LLC
North Carolina
$3.8M +$3.8M +239,242 New
RAM
36
Redmond Asset Management
Virginia
$3.79M +$29.9K +1,881 +0.8%
JPMorgan Chase & Co
37
JPMorgan Chase & Co
New York
$3.77M -$522K -32,873 -12%
MAM
38
Montanaro Asset Management
United Kingdom
$3.44M -$3.27M -205,700 -49%
UM
39
UniSuper Management
Australia
$3.42M -$6.02M -378,896 -64%
Bank of America
40
Bank of America
North Carolina
$3.42M +$309K +19,448 +10%
UBS AM
41
UBS AM
Illinois
$3.27M +$318K +19,992 +11%
Qube Research & Technologies (QRT)
42
Qube Research & Technologies (QRT)
United Kingdom
$2.97M -$746K -46,926 -20%
EIM
43
Essex Investment Management
Massachusetts
$2.85M -$632K -39,767 -18%
Millennium Management
44
Millennium Management
New York
$2.8M +$674K +42,445 +32%
CS
45
Candriam SCA
Luxembourg
$2.59M – – –
Bank of New York Mellon
46
Bank of New York Mellon
New York
$2.58M -$2.42K -152 -0.1%
Assenagon Asset Management
47
Assenagon Asset Management
Luxembourg
$2.33M -$58K -3,652 -2%
State of Wisconsin Investment Board
48
State of Wisconsin Investment Board
Wisconsin
$2.23M +$37.8K +2,376 +2%
Arrowstreet Capital
49
Arrowstreet Capital
Massachusetts
$2.17M +$2.17M +136,448 New
Nordea Investment Management
50
Nordea Investment Management
Sweden
$2.08M +$84.2K +5,315 +4%
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