13F Insight
DOSSIER · 13F Holders · Q1 2026Inflation hedgeYield
ERII

ENERGY RECOVERY INC

200 institutions still hold ENERGY RECOVERY INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 29270j100·200 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 3.5%
vs prior quarter
13F value held
$335M
71.0% inst. owned
of float
Holders
200
-57 QoQ
filers reporting
Activity
+8 / −79
+884 added · −793 reduced
this quarter
Concentration
18.31%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

200 institutions reported ERII in Q1 2026. BlackRock, Inc. leads at 18.3% of the visible book. -57 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$61M6.1M0.00%Q1 202602
AMERIPRISE FINANCIAL INC
CIK 0000820027
$53M5.3M0.01%Q1 202603
Amundi
CIK 0001330387
$38M3.7M0.01%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$22M2.2M0.00%Q1 202605
FIL Ltd
CIK 0000318989
$20M2.0M0.02%Q1 202606
Legal & General Group Plc
CIK 0000764068
$19M1.9M0.00%Q1 202607
STATE STREET CORP
CIK 0000093751
$18M1.8M0.00%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$13M1.3M0.00%Q1 202609
Vanguard Portfolio Management
CIK 0002100121· Index
$13M1.3M0.00%Q1 202610
Select Equity Group, L.P.
CIK 0001592643
$10M774K0.04%Q4 202511
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$9M877K0.00%Q1 202612
Invesco Ltd.
CIK 0000914208
$8M826K0.00%Q1 202613
AVENIR CORP
CIK 0001033475
$8M818K1.00%Q1 202614
MORGAN STANLEY
CIK 0000895421
$8M793K0.00%Q1 202615
DIAMOND HILL CAPITAL MANAGEMENT INC
CIK 0001217541
$7M673K0.04%Q1 202616
CITADEL ADVISORS LLC
CIK 0001423053
$6M470K0.00%Q4 202517
BROWN CAPITAL MANAGEMENT LLC
CIK 0000885062
$5M538K0.77%Q1 202618
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$5M514K0.00%Q1 202619
Kopion Asset Management, LLC
CIK 0001728689
$5M507K3.97%Q1 202620
ArrowMark Colorado Holdings LLC
CIK 0001483859
$5M377K0.11%Q4 2025
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