Position in ERII
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$2,100,117
+$1,204,905 QoQ
Shares Held
232,829
+161.9% QoQ
Ownership
0.456%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#38
of 198 holders
Holding Since
Dec 2021
15 quarters on record
Voting authority
Sole 99%
Shared 0%
None 1%
Common Shares in ERII Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Jun 30, 2026TWO SIGMA INVESTMENTS, LP holds $127,483,908 across 9 Pollution & Treatment Controls names. ERII ranks #4 (1.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CECO |
Ceco Environmental Corp
|
1,013,412 | $91,957,004 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
|
496,887 | $25,107,700 | |
| 3 | VLTO |
Veralto Corp
|
71,038 | $6,299,649 | |
| 4 | ERII |
Energy Recovery, Inc.
This page
|
232,829 | $2,100,117 | |
| 5 | ARQ |
Arq, Inc.
|
251,777 | $642,031 | |
| 6 | ADUR |
Aduro Clean Technologies Inc.
|
40,616 | $640,108 | |
| 7 | FTEK |
Fuel Tech, Inc.
|
168,457 | $372,289 | |
| 8 | PCT |
PureCycle Technologies, Inc.
|
41,815 | $339,119 |
All Filings in ERII
Export CSV
15 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $2,100,117 | 232,829 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $895,212 | 88,899 | Shares | Sole | 2026-05-15 | |
| 2025-03-31 | $849,177 | 53,441 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $228,805 | 15,565 | Shares | Sole | 2025-02-14 | |
| 2024-06-30 | $896,410 | 67,450 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $1,169,928 | 74,093 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $2,281,071 | 121,076 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $961,385 | 45,327 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,000,381 | 71,570 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $1,710,010 | 74,187 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $2,188,065 | 106,787 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $5,075,007 | 233,441 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,011,135 | 103,560 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $1,400,374 | 69,532 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $378,095 | 17,594 | Shares | Sole | 2022-02-14 | |
| No filing history on record for this holder in this stock. | ||||||