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.

Q2 2026 vs. Q1 2026

How the institutions holding Energy Recovery, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of ERII: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	197	2	199	+4
Shares	44.3M	30.7K	43.9M	−398.4K (−0.9%)
Value	$446.1M	$309.3K	$395.6M	−$50.2M (−11.3%)

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (41)

Institutions that held Energy Recovery, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to ERII in Q2 2026
Institution	Shares	Value	% of portfolio
Mackenzie Financial Corp	1,187,686	$10.7M	0.01%
Tudor Investment Corp Et Al	471,905	$4.26M	0.02%
Jump Financial, LLC	152,127	$1.37M	0.01%
Polymer Capital Management (US) LLC	144,705	$1.31M	0.19%
Y-Intercept (Hong Kong) Ltd	120,366	$1.09M	0.02%
Pacer Advisors, Inc.	115,956	$1.05M	0.00%
Bank of Montreal	96,072	$866.6K	0.00%
Point72 Asset Management, L.P.	82,819	$747.0K	0.00%
Milfam LLC	75,000	$676.5K	0.54%
Neuberger Berman Group LLC	58,580	$528.4K	0.00%
GWM Advisors LLC	57,456	$518.3K	0.00%
ExodusPoint Capital Management, LP	55,371	$499.4K	0.00%
Diametric Capital, LP	41,078	$370.5K	0.04%
CI Private Wealth, LLC	33,464	$301.8K	0.00%
Brevan Howard Capital Management LP	31,397	$283.2K	0.00%
Allstate Corp	31,153	$281.0K	0.00%
Prelude Capital Management, LLC	30,354	$273.8K	0.02%
Creative Planning	29,645	$267.4K	0.00%
Keebeck Alpha, LP	25,396	$229.1K	0.48%
Jupiter Topco LLC	24,175	$217.9K	0.00%
Engineers Gate Manager LP	21,100	$190.3K	0.00%
ELCO Management Co., LLC	20,686	$186.6K	0.08%
Davy Global Fund Management Ltd	18,775	$169.4K	0.01%
Cullen Capital Management LLC	18,459	$166.5K	0.00%
Inceptionr LLC	16,261	$146.7K	0.04%
Ballentine Partners, LLC	16,202	$146.1K	0.00%
Stifel Financial Corp	15,931	$143.7K	0.00%
Cerity Partners LLC	15,490	$139.7K	0.00%
Ethic Inc.	14,057	$126.8K	0.00%
Ossiam	7,439	$67.1K	0.00%
SRS Capital Advisors, Inc.	4,683	$42.2K	0.00%
Quantbot Technologies LP	3,618	$32.6K	0.00%
Persistent Asset Partners Ltd	2,413	$21.8K	0.01%
Nykredit A/S	1,431	$12.9K	0.00%
Concord Wealth Partners	500	$4.51K	0.00%
Steward Partners Investment Advisory, LLC	334	$3.01K	0.00%
Cary Street Partner Investment Advisory LLC	101	$911	0.00%
Signaturefd, LLC	76	$686	0.00%
SJS Investment Consulting Inc.	43	$388	0.00%
Strive Financial Group ,LLC	35	$316	0.00%
Clearstead Advisors, LLC	7	$64	0.00%

Sold out (37)

Institutions that held Energy Recovery, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of ERII in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Diamond Hill Capital Management Inc	673,035	$6.78M
Arrowstreet Capital, Limited Partnership	514,102	$5.18M
Select Equity Group, L.P.	394,208	$3.97M
Millennium Management LLC	322,341	$3.25M
Redmond Asset Management, LLC	214,380	$2.16M
Renaissance Technologies LLC	144,265	$1.45M
Trexquant Investment LP	135,968	$1.37M
Conestoga Capital Advisors, LLC	133,725	$1.35M
Essex Investment Management Co LLC	132,322	$1.33M
HRT Financial LP	76,500	$770.0K
XTX Topco Ltd	56,479	$568.7K
Victory Capital Management Inc	53,213	$535.9K
State of Wisconsin Investment Board	53,126	$535.0K
Connective Capital Management, LLC	49,026	$493.7K
Shelton Capital Management	46,385	$467.1K
DnB Asset Management AS	37,395	$376.6K
Dynamic Technology Lab Private Ltd	34,486	$347.3K
Quadrature Capital Ltd	33,559	$337.9K
Caxton Associates LLP	25,731	$259.1K
Aquatic Capital Management LLC	24,100	$242.7K
Fox Run Management, L.L.C.	21,067	$206.7K
VARCOV Co.	16,280	$163.9K
Campbell & CO Investment Adviser LLC	14,640	$147.4K
Mirabella Financial Services LLP	14,362	$144.6K
State of Wyoming	14,004	$141.0K
Two Sigma Securities, LLC	13,985	$140.8K
Raymond James Financial Inc	13,960	$140.6K
Premier Fund Managers Ltd	4,314	$42.0K
Essential Partners LLC	226	$2.28K
Advisory Services Network, LLC	150	$1.51K
Northwestern Mutual Wealth Management Co	100	$1.01K
Zions Bancorporation, National Association	63	$634
Investors Portfolio Services LLC	58	$481
Root Financial Partners, LLC	33	$332
Massmutual Trust Co FSB	23	$232
MAI Capital Management	20	$202
Pinnacle Wealth Planning Services, Inc.	16	$161

Not filed for Q2 2026 yet (2)

Institutions that held Energy Recovery, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ERII in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Janus Henderson Group PLC	24,175	$243.3K
CWM, LLC	6,555	$66.0K