ERII — ENERGY RECOVERY INC

Ownership history in FOX RUN MANAGEMENT, L.L.C.  ·  6 quarters on record

This page tracks every 13F SEC filing in which FOX RUN MANAGEMENT, L.L.C. reported a position in ENERGY RECOVERY INC (ERII). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.12% (2017 Q4)
Avg. % of fund
0.08%
First filed
2016 Q3
Last filed
2025 Q3
Quarters held
6
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 14,384 -6,344 -30.6% 0.03% $222K $15.42
2024 Q4 ADDED 20,728 +1,042 +5.3% 0.06% $305K $14.70
2024 Q1 ADDED 19,686 +1,052 +5.6% 0.07% $311K $15.79
2018 Q3 REDUCED 18,634 -26,266 -58.5% 0.07% $167K $8.95
2017 Q4 ADDED 44,900 +33,300 +287.1% 0.12% $393K $8.75
2016 Q3 INITIATED 11,600 — — 0.11% $185K $15.98
% of Fund (quarterly)    ERII price (monthly, adj. close)

Other funds also holding ERII

As of 2025 Q4 — sorted by position size

Kopion Asset Management, LLC 3Y 3.23% AVENIR CORP 3Y 7Y 1.42% ACK Asset Management LLC 3Y 7Y 1.15% BROWN CAPITAL MANAGEMENT LLC 3Y 7Y 0.85% Redmond Asset Management, LLC 3Y 7Y 0.78% Montanaro Asset Management Ltd 3Y 0.48% Alpha Wave Global, LP 3Y 7Y 0.44% ESSEX INVESTMENT MANAGEMENT CO LLC 3Y 7Y 0.28% ISTHMUS PARTNERS, LLC 3Y 7Y 0.17% EntryPoint Capital, LLC 0.15%
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