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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 %
TI
51
Trexquant Investment
Connecticut
$2M +$64.5K +4,056 +3%
Jane Street
52
Jane Street
New York
$1.94M +$685K +43,089 +54%
BNP Paribas Financial Markets
53
BNP Paribas Financial Markets
France
$1.88M +$1.25M +78,849 +199%
Voloridge Investment Management
54
Voloridge Investment Management
Florida
$1.79M -$774K -48,725 -30%
Swiss National Bank
55
Swiss National Bank
Switzerland
$1.78M – – –
DFCM
56
Dark Forest Capital Management
Puerto Rico
$1.76M +$1.24M +78,326 +241%
SIG
57
Sargent Investment Group
Maryland
$1.72M -$1.39M -87,697 -45%
ECM
58
ExodusPoint Capital Management
New York
$1.57M +$1.57M +99,033 New
VanEck Associates
59
VanEck Associates
New York
$1.57M +$10K +630 +0.6%
SCM
60
Shelton Capital Management
Colorado
$1.44M – – –
CCA
61
Conestoga Capital Advisors
Pennsylvania
$1.42M – – –
Balyasny Asset Management
62
Balyasny Asset Management
Illinois
$1.35M +$1.35M +85,257 New
RhumbLine Advisers
63
RhumbLine Advisers
Massachusetts
$1.32M +$91.9K +5,781 +7%
Susquehanna International Group
64
Susquehanna International Group
Pennsylvania
$1.29M +$805K +50,630 +165%
Barclays
65
Barclays
United Kingdom
$1.25M -$448K -28,211 -26%
Janus Henderson Group
66
Janus Henderson Group
United Kingdom
$1.24M +$850K +53,281 +220%
LIM
67
Lagoda Investment Management
New York
$1.18M -$1.85M -116,663 -61%
GF
68
Gabelli Funds
New York
$1.18M – – –
IEFM
69
IQ EQ Fund Management
Ireland
$1.09M -$10.2K -640 -0.9%
HF
70
HRT Financial
New York
$997K +$274K +17,265 +38%
UBS Group
71
UBS Group
Switzerland
$990K -$205K -12,894 -17%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
72
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$980K – – –
NSEDCP
73
NJ State Employees Deferred Compensation Plan
New Jersey
$938K – – –
EGM
74
Engineers Gate Manager
New York
$912K -$342K -21,499 -27%
AllianceBernstein
75
AllianceBernstein
Tennessee
$862K -$213K -13,435 -20%
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