Position in ZWS
as of Mar 31, 2026
· filed May 12, 2026
Position Value
$512,117
+$70,555 QoQ
Shares Held
11,421
+20.2% QoQ
Ownership
0.007%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 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, 2026GREAT LAKES ADVISORS, LLC holds $6,571,779 across 4 Pollution & Treatment Controls names. ZWS ranks #2 (7.8% of the industry book) .
All Filings in ZWS
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $512,117 | 11,421 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $441,562 | 9,498 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $371,913 | 7,908 | Shares | Sole | 2025-11-03 | |
| 2025-06-30 | $308,175 | 8,427 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $209,225 | 6,344 | Shares | Sole | 2025-05-16 | |
| 2024-12-31 | $281,242 | 7,540 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $302,003 | 8,403 | Shares | Sole | 2024-11-04 | |
| No filing history on record for this holder in this stock. | ||||||