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JANE STREET GROUP, LLC

Position in ERII — Energy Recovery, Inc.

CIK 1595888 NEW YORK, NY

Position in ERII

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$375,096
-$989,115 QoQ
Shares Held
41,585
-69.3% QoQ
Ownership
0.081%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#90
of 198 holders
Holding Since
Mar 2020
20 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ERII Over Time

Shares Held

Position Value (USD)

Derivatives in ERII

reported options exposure · as of Jun 30, 2026
CallValue
$707,168
CallShares
78,400
PutValue
$1,109,460
PutShares
123,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Pollution & Treatment Controls

Industrials · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $6,391,909 across 9 Pollution & Treatment Controls names. ERII ranks #6 (5.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 ERII
Energy Recovery, Inc.
This page
41,585 $375,096

All Filings in ERII

Export CSV
26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,109,460 123,000
2026-06-30 $707,168 78,400
2026-06-30 $375,096 41,585
2026-03-31 $1,364,211 135,473
2026-03-31 $177,232 17,600
2025-12-31 $1,506,468 111,673
2025-12-31 $215,840 16,000
2025-09-30 $2,376,360 154,109
2025-06-30 $536,184 41,955
2025-03-31 $1,944,442 122,369
2024-12-31 $1,165,415 79,280
2024-09-30 $540,636 31,089
2024-06-30 $1,201,455 90,403
2024-03-31 $307,841 19,496
2023-12-31 $1,784,147 94,700
2023-09-30 $545,372 25,713
2023-06-30 $1,047,202 37,467
2023-03-31 $299,073 12,975
2022-03-31 $445,094 22,100
2022-03-31 $622,124 30,890
2021-12-31 $586,677 27,300
2021-09-30 $534,743 28,100
2021-06-30 $247,595 10,869
2021-06-30 $601,392 26,400
2020-09-30 $138,932 16,943
2020-03-31 $98,572 13,249