Position in ZWS
as of Mar 31, 2026
· filed Apr 24, 2026
Position Value
$1,681,500
-$61,875 QoQ
Shares Held
37,500
0.0% QoQ
Ownership
0.022%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2021
18 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ZWS Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Mar 31, 2026STRS OHIO holds $4,083,286 across 4 Pollution & Treatment Controls names. ZWS ranks #2 (41.2% of the industry book) .
All Filings in ZWS
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,681,500 | 37,500 | Shares | Sole | 2026-04-24 | |
| 2025-12-31 | $1,743,375 | 37,500 | Shares | Sole | 2026-02-02 | |
| 2025-09-30 | $1,260,404 | 26,800 | Shares | Sole | 2025-10-30 | |
| 2025-06-30 | $650,946 | 17,800 | Shares | Sole | 2025-08-04 | |
| 2025-03-31 | $438,634 | 13,300 | Shares | Sole | 2025-05-28 | |
| 2024-12-31 | $496,090 | 13,300 | Shares | Sole | 2025-05-28 | |
| 2024-09-30 | $438,468 | 12,200 | Shares | Sole | 2024-11-01 | |
| 2024-06-30 | $346,920 | 11,800 | Shares | Sole | 2024-08-05 | |
| 2024-03-31 | $1,362,229 | 40,700 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $1,361,683 | 46,300 | Shares | Sole | 2024-01-30 | |
| 2023-09-30 | $386,676 | 13,800 | Shares | Sole | 2023-10-26 | |
| 2023-06-30 | $311,924 | 11,600 | Shares | Sole | 2023-07-31 | |
| 2023-03-31 | $74,760 | 3,500 | Shares | Sole | 2023-08-02 | |
| 2022-12-31 | $126,900 | 6,000 | Shares | Sole | 2023-01-26 | |
| 2022-09-30 | $188,650 | 7,700 | Shares | Sole | 2022-10-27 | |
| 2022-06-30 | $253,332 | 9,300 | Shares | Sole | 2022-07-25 | |
| 2022-03-31 | $1,331,040 | 37,600 | Shares | Sole | 2022-04-21 | |
| 2021-12-31 | $1,368,640 | 37,600 | Shares | Sole | 2022-01-24 | |
| No filing history on record for this holder in this stock. | ||||||