Energy Recovery, Inc.

ERII

Exchange: Nasdaq
Industry: Special Industry Machinery, NEC
SEC CIK: 0001421517

SEC filings (opens in a new tab)

In the last 90 days, Energy Recovery, Inc. insiders filed 0 open-market purchases and 2 sales; 199 institutions reported holding it in 13F filings for Q2 2026, worth $395.6M in total; no superinvestor holds it.

Q3 2025 vs. Q2 2025

How the institutions holding Energy Recovery, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025 All holders in Q2 2025

13F holders of ERII: Q2 2025 compared with Q3 2025
Measure	Q2 2025	Of which not filed for Q3 2025	Q3 2025	Change
Holders	186	1	192	+7
Shares	45.4M	28.0K	43.9M	−1.44M (−3.2%)
Value	$580.1M	$357.8K	$677.5M	+$97.8M (+16.9%)

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (31)

Institutions that held Energy Recovery, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Institutions new to ERII in Q3 2025
Institution	Shares	Value	% of portfolio
Royce & Associates LP	317,645	$4.90M	0.05%
Wellington Management Group LLP	302,525	$4.66M	0.00%
Mackenzie Financial Corp	117,228	$1.81M	0.00%
Bank of Montreal	36,792	$567.3K	0.00%
HSBC Holdings PLC	31,504	$484.3K	0.00%
Teton Advisors, LLC	28,000	$431.8K	0.27%
Polymer Capital Management (US) LLC	24,058	$371.0K	0.05%
Inceptionr LLC	18,147	$279.8K	0.07%
Lingohr & Partner Asset Management GmbH	15,603	$241.0K	0.42%
MQS Management LLC	15,122	$233.2K	0.14%
Fox Run Management, L.L.C.	14,384	$221.8K	0.03%
Great Lakes Advisors, LLC	14,367	$221.5K	0.00%
Axq Capital, LP	12,938	$199.5K	0.08%
Envestnet Asset Management Inc	11,934	$184.0K	0.00%
Petrus Trust Company, LTA	11,643	$179.5K	0.02%
Cornerstone Investment Partners, LLC	11,054	$170.5K	0.01%
Quadrature Capital Ltd	10,747	$165.6K	0.00%
Man Group plc	10,511	$162.1K	0.00%
Acadian Asset Management LLC	3,282	$50.0K	0.00%
State of Alaska, Department of Revenue	3,016	$46.0K	0.00%
Wexford Capital LP	1,731	$26.7K	0.01%
Rockefeller Capital Management L.P.	1,628	$25.1K	0.00%
Stance Capital LLC	1,539	$23.7K	0.01%
SRS Capital Advisors, Inc.	1,215	$18.7K	0.00%
Versant Capital Management, Inc	276	$4.26K	0.00%
Advisory Services Network, LLC	150	$2.31K	0.00%
OP Asset Management Ltd	132	$2.04K	0.00%
Bessemer Group Inc	82	$1.00K	0.00%
GAMMA Investing LLC	25	$386	0.00%
Essential Partners LLC	17	$262	0.00%
Larson Financial Group LLC	3	$46	0.00%

Sold out (24)

Institutions that held Energy Recovery, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of ERII in Q3 2025
Institution	Shares, Q2 2025	Value, Q2 2025
Robeco Schweiz AG	562,689	$7.19M
ExodusPoint Capital Management, LP	124,001	$1.58M
Walleye Capital LLC	75,513	$965.1K
Healthcare of Ontario Pension Plan Trust Fund	61,700	$788.5K
Brevan Howard Capital Management LP	60,093	$768.0K
XTX Topco Ltd	49,246	$629.4K
Two Sigma Advisers, LP	32,612	$416.8K
Thrivent Financial for Lutherans	30,424	$389.0K
Squarepoint Ops LLC	25,893	$330.9K
Nebula Research & Development LLC	24,475	$312.8K
Graham Capital Management, L.P.	24,461	$312.6K
Aristides Capital LLC	19,998	$255.6K
Versor Investments LP	19,000	$242.8K
Centiva Capital, LP	18,811	$240.4K
Magnetar Financial LLC	16,762	$214.2K
PharVision Advisers, LLC	16,155	$206.5K
ProShare Advisors LLC	10,929	$139.7K
FNY Investment Advisers, LLC	6,316	$80.0K
Quarry LP	5,656	$72.3K
Simplex Trading, LLC	1,595	$20.0K
Towarzystwo Funduszy Inwestycyjnych Pzu SA	400	$5.11K
Vision Financial Markets LLC	100	$1.28K
Northwestern Mutual Wealth Management Co	74	$946
Kozak & Associates, Inc.	0	$6

Not filed for Q3 2025 yet (1)

Institutions that held Energy Recovery, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ERII in Q2 2025 that haven't filed for Q3 2025
Institution	Shares, Q2 2025	Value, Q2 2025
Teton Advisors, Inc.	28,000	$357.8K