Position in CECO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$57,178,806
+$25,723,622 QoQ
Shares Held
959,698
+82.6% QoQ
Ownership
2.68%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2020
22 quarters on record
Voting authority
Sole 98.7391867024835.ToString("F0")%
Shared 0.ToString("F0")%
None 1.2608132975165105.ToString("F0")%
Common Shares in CECO Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Mar 31, 2026TWO SIGMA INVESTMENTS, LP holds $74,757,505 across 7 Pollution & Treatment Controls names. CECO ranks #1 (76.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CECO |
Ceco Environmental Corp
This page
|
959,698 | $57,178,806 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
|
346,173 | $15,522,397 | |
| 3 | ERII |
Energy Recovery, Inc.
|
88,899 | $895,212 | |
| 4 | VLTO |
Veralto Corp
|
8,332 | $736,715 | |
| 5 | ADUR |
Aduro Clean Technologies Inc.
|
29,762 | $312,203 | |
| 6 | ARQ |
Arq, Inc.
|
28,700 | $73,472 | |
| 7 | SCWO |
374Water Inc.
|
13,627 | $38,700 |
All Filings in CECO
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22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $57,178,806 | 959,698 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $31,455,184 | 525,567 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $15,497,779 | 302,691 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $230,301 | 8,135 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $1,261,227 | 55,317 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $1,454,607 | 48,118 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,648,769 | 58,467 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $4,529,074 | 156,987 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $3,658,338 | 158,920 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $3,545,674 | 174,836 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $3,562,795 | 223,093 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $3,495,122 | 261,611 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $4,140,872 | 295,988 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $2,815,008 | 241,011 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $2,878,639 | 325,270 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $738,231 | 123,450 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $297,486 | 54,187 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $257,747 | 41,372 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $204,138 | 28,997 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $411,964 | 57,537 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $810,192 | 102,168 | Shares | Sole | 2021-05-17 | |
| 2020-09-30 | $116,122 | 15,929 | Shares | Sole | 2020-11-16 | |
| No filing history on record for this holder in this stock. | ||||||