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Who owns Energy Recovery (ERII) stock

187 funds reported Energy Recovery (ERII) shares in their latest 13F filings, worth $410M in all. The largest holder is BlackRock ($57.2M). Last quarter 110 funds added to their stakes and 76 cut them.

Largest holders of ERII (13F)Largest holders of ERII (13F)BlackRock$57.2MVanguard Group$52.0MAmundi$24.0MVanguard Capital Management LLC$19.7MLegal & General Group$18.6MFIL$15.5MGeode Capital Management, LLC$15.3MState Street$14.7MVanguard Portfolio Management LLC$11.4MMorgan Stanley$11.2M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock6,344,252$57.2Mincrease2026-06-30
Vanguard Group3,852,438$52.0Mincrease2025-12-31
Amundi3,588,117$24.0Mdecrease2026-09-30
Vanguard Capital Management LLC2,183,718$19.7Mdecrease2026-06-30
Legal & General Group2,059,764$18.6Mincrease2026-06-30
FIL1,715,722$15.5Mdecrease2026-06-30
Geode Capital Management, LLC1,697,550$15.3Mincrease2026-06-30
State Street1,625,893$14.7Mdecrease2026-06-30
Vanguard Portfolio Management LLC1,263,667$11.4Mincrease2026-06-30
Morgan Stanley1,237,003$11.2Mincrease2026-06-30
Invesco925,550$8.3Mincrease2026-06-30
Dimensional Fund Advisors LP878,724$7.9Mincrease2026-06-30
ArrowMark Colorado Holdings LLC847,000$7.6Mincrease2026-06-30
Kopion Asset Management, LLC1,018,133$6.8Mincrease2026-09-30
Royce & Associates LP752,812$6.8Mincrease2026-06-30

Energy Recovery's latest quarter

Energy Recovery, Q3 2026: revenue $11.2M (-65% year over year), operating margin -87.5%, net loss $6.3M, operating cash flow −$9.2M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most ERII stock?

By the latest 13F filings: BlackRock ($57.2M); Vanguard Group ($52.0M); Amundi ($24.0M); Vanguard Capital Management LLC ($19.7M); Legal & General Group ($18.6M).

What is the short interest in ERII?

3,201,538 shares were sold short at the 2026-10-15 settlement, -3.61% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.