Position in ZWS
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$1,077,344,711
-$26,015,096 QoQ
Shares Held
24,026,421
+1.2% QoQ
Ownership
14.4%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 97.82837818416651.ToString("F0")%
Shared 0.ToString("F0")%
None 2.171621815833494.ToString("F0")%
Common Shares in ZWS Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Mar 31, 2026BlackRock, Inc. holds $3,535,552,926 across 13 Pollution & Treatment Controls names. ZWS ranks #2 (30.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VLTO |
Veralto Corp
|
24,929,550 | $2,204,270,801 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
This page
|
24,026,421 | $1,077,344,711 | |
| 3 | CECO |
Ceco Environmental Corp
|
2,285,277 | $136,156,796 | |
| 4 | ERII |
Energy Recovery, Inc.
|
6,090,926 | $61,335,617 | |
| 5 | PCT |
PureCycle Technologies, Inc.
|
9,723,820 | $50,466,620 | |
| 6 | ARQ |
Arq, Inc.
|
2,097,522 | $5,369,653 | |
| 7 | ZONE |
CleanCore Solutions, Inc.
|
660,657 | $235,193 | |
| 8 | SCWO |
374Water Inc.
|
79,292 | $225,188 |
All Filings in ZWS
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,077,344,711 | 24,026,421 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $1,103,359,807 | 23,733,272 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $1,110,597,780 | 23,614,667 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $876,051,164 | 23,955,460 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $819,334,962 | 24,843,389 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $952,510,957 | 25,536,487 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $915,166,773 | 25,463,739 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||