Position in CECO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$8,045,206
-$663,447 QoQ
Shares Held
135,032
-7.2% QoQ
Ownership
0.376%
of shares outstanding
% of Portfolio
0.24%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2022
12 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CECO Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Mar 31, 2026OBERWEIS ASSET MANAGEMENT INC/ holds $23,837,091 across 2 Pollution & Treatment Controls names. CECO ranks #2 (33.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZWS |
Zurn Elkay Water Solutions Corp
|
352,183 | $15,791,885 | |
| 2 | CECO |
Ceco Environmental Corp
This page
|
135,032 | $8,045,206 |
All Filings in CECO
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12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $8,045,206 | 135,032 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $8,708,653 | 145,508 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $4,710,809 | 92,008 | Shares | Sole | 2025-11-17 | |
| 2024-09-30 | $5,679,480 | 201,400 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $11,387,095 | 394,700 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $10,667,468 | 463,400 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $8,653,476 | 426,700 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,654,699 | 416,700 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $5,245,136 | 392,600 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $3,114,174 | 222,600 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $2,126,928 | 182,100 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $1,391,220 | 157,200 | Shares | Sole | 2022-11-14 | |
| No filing history on record for this holder in this stock. | ||||||