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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in ERII — Energy Recovery, Inc.

CIK 1164508 BOSTON, MA

Position in ERII

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$5,177,007
+$479,965 QoQ
Shares Held
514,102
+47.7% QoQ
Ownership
0.997%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ERII Over Time

Shares Held

Position Value (USD)

Position in Pollution & Treatment Controls

Industrials · as of Mar 31, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $32,482,721 across 3 Pollution & Treatment Controls names. ERII ranks #3 (15.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 ERII
Energy Recovery, Inc.
This page
514,102 $5,177,007

All Filings in ERII

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13 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $5,177,007 514,102
2025-12-31 $4,697,042 348,187
2025-09-30 $3,451,689 223,845
2025-06-30 $1,780,547 139,323
2025-03-31 $2,168,158 136,448
2021-12-31 $1,361,692 63,364
2021-09-30 $2,347,026 123,333
2021-06-30 $1,015,600 44,583
2021-03-31 $5,594,782 305,059
2020-12-31 $4,194,941 307,547
2020-09-30 $1,829,141 223,066
2020-06-30 $2,328,472 306,378
2020-03-31 $914,376 122,900