OBERWEIS ASSET MANAGEMENT INC/
Position in ZWS — Zurn Elkay Water Solutions Corp
CIK 937886
LISLE, IL
Position in ZWS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$15,791,885
+$3,425,545 QoQ
Shares Held
352,183
+32.4% QoQ
Ownership
0.211%
of shares outstanding
% of Portfolio
0.47%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ZWS 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. ZWS ranks #1 (66.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZWS |
Zurn Elkay Water Solutions Corp
This page
|
352,183 | $15,791,885 | |
| 2 | CECO |
Ceco Environmental Corp
|
135,032 | $8,045,206 |
All Filings in ZWS
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3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $15,791,885 | 352,183 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $12,366,340 | 266,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $12,509,980 | 266,000 | Shares | Sole | 2025-11-17 | |
| No filing history on record for this holder in this stock. | ||||||