Position in CECO
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$141,598,499
+$103,473,734 QoQ
Shares Held
1,560,486
+143.9% QoQ
Ownership
2.66%
of shares outstanding
% of Portfolio
0.82%
of 13F equity value
Holder Rank
#7
of 343 holders
Holding Since
Dec 2023
11 quarters on record
Voting authority
Sole 78%
Shared 0%
None 22%
Common Shares in CECO Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Jun 30, 2026Driehaus Capital Management LLC holds $202,017,725 across 2 Pollution & Treatment Controls names. CECO ranks #1 (70.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CECO |
Ceco Environmental Corp
This page
|
1,560,486 | $141,598,499 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
|
1,195,710 | $60,419,226 |
All Filings in CECO
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $141,598,499 | 1,560,486 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $38,124,765 | 639,892 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $34,710,007 | 579,950 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $26,548,019 | 518,516 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $17,270,458 | 610,048 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $13,262,304 | 581,680 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $17,650,269 | 583,866 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $16,652,128 | 590,501 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $16,913,283 | 586,249 | Shares | Sole | 2024-08-15 | |
| 2024-03-31 | $9,824,107 | 426,764 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $7,621,284 | 375,803 | Shares | Sole | 2024-02-14 | |
| No filing history on record for this holder in this stock. | ||||||