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, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $32,482,721 across 3 Pollution & Treatment Controls names. ERII ranks #3 (15.9% of the industry book) .
All Filings in ERII
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,177,007 | 514,102 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $4,697,042 | 348,187 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $3,451,689 | 223,845 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $1,780,547 | 139,323 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $2,168,158 | 136,448 | Shares | Defined | 2025-05-14 | |
| 2021-12-31 | $1,361,692 | 63,364 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $2,347,026 | 123,333 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $1,015,600 | 44,583 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $5,594,782 | 305,059 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $4,194,941 | 307,547 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $1,829,141 | 223,066 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $2,328,472 | 306,378 | Shares | Defined | 2020-08-12 | |
| 2020-03-31 | $914,376 | 122,900 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||