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MARSHALL WACE, LLP

Position in ERII — Energy Recovery, Inc.

CIK 1318757 LONDON, X0

Position in ERII

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$6,108,775
+$5,038,366 QoQ
Shares Held
677,248
+537.1% QoQ
Ownership
1.33%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#17
of 198 holders
Holding Since
Mar 2021
16 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in ERII Over Time

Shares Held

Position Value (USD)

Position in Pollution & Treatment Controls

Industrials · as of Jun 30, 2026

MARSHALL WACE, LLP holds $16,079,873 across 6 Pollution & Treatment Controls names. ERII ranks #1 (38.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ERII
Energy Recovery, Inc.
This page
677,248 $6,108,775

All Filings in ERII

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16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,108,775 677,248
2026-03-31 $1,070,409 106,297
2025-12-31 $1,475,670 109,390
2025-09-30 $3,691,377 239,389
2025-06-30 $641,734 50,214
2025-03-31 $751,341 47,284
2024-12-31 $2,611,160 177,630
2024-03-31 $1,938,996 122,799
2023-03-31 $2,810,578 121,934
2022-12-31 $399,186 19,482
2022-09-30 $1,017,432 46,800
2022-06-30 $1,197,107 61,643
2022-03-31 $424,047 21,055
2021-09-30 $2,972,828 156,218
2021-06-30 $2,361,807 103,679
2021-03-31 $774,846 42,249