Mueller Water Products, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionFmr Llc
Latest Disclosed Ownership964,767 shares
Latest Disclosed Value $ 26,521,458
Fmr Llc reports 19.73% increase in ownership of MWA / Mueller Water Products, Inc.

On May 15, 2026 - Fmr Llc filed a 13F-HR form disclosing ownership of 964,767 shares of Mueller Water Products, Inc. (US:MWA) valued at $26,521,445 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 805,789 shares of Mueller Water Products, Inc.. This represents a change in shares of 19.73% during the quarter. The current value of the position is $24,437,548 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MUELLER WTR PRODS COM SER A 624758108 964,767 158,978 19.73 26,521 38.18 0.0003
2026-02-17 2025-12-31 13F MUELLER WTR PRODS COM SER A 624758108 805,789 114,811 16.62 19,194 8.85 0.0010
2025-11-13 2025-09-30 13F MUELLER WTR PRODS COM SER A 624758108 690,978 -234,877 -25.37 17,634 -20.78 0.0009
2025-08-14 2025-06-30 13F MUELLER WTR PRODS COM SER A 624758108 925,855 -647,502 -41.15 22,258 -44.35 0.0013
2025-05-12 2025-03-31 13F MUELLER WTR PRODS COM SER A 624758108 1,573,357 665,031 73.22 39,995 95.69 0.0026
2025-02-13 2024-12-31 13F MUELLER WTR PRODS COM SER A 624758108 908,326 -644 -0.07 20,437 3.61 0.0012
2024-11-13 2024-09-30 13F MUELLER WTR PRODS COM SER A 624758108 908,970 37,095 4.25 19,725 26.24 0.0012
2024-08-13 2024-06-30 13F MUELLER WTR PRODS COM SER A 624758108 871,875 -1,785,584 -67.19 15,624 -63.46 0.0010
2024-05-13 2024-03-31 13F MUELLER WTR PRODS COM SER A 624758108 2,657,459 466,218 21.28 42,759 35.51 0.0029
2024-02-13 2023-12-31 13F MUELLER WTR PRODS COM SER A 624758108 2,191,241 1,871,474 585.26 31,554 678.32 0.0024
2023-11-13 2023-09-30 13F MUELLER WTR PRODS COM SER A 624758108 319,767 -247,619 -43.64 4,055 -55.97 0.0004
2023-08-11 2023-06-30 13F MUELLER WTR PRODS COM SER A 624758108 567,386 77,142 15.74 9,209 34.74 0.0008
2023-08-11 2023-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 490,244 381,536 350.97 6,834 484.60 0.0006
2023-05-11 2023-03-31 13F MUELLER WTR PRODS COM SER A 624758108 490,244 381,536 6,834 0.0001
2023-02-13 2022-12-31 13F MUELLER WTR PRODS COM SER A 624758108 108,708 59,941 122.91 1,170 133.33 0.0001
2022-11-10 2022-09-30 13F MUELLER WTR PRODS COM SER A 624758108 48,767 3,339 7.35 501 -6.00 0.0001
2022-08-12 2022-06-30 13F MUELLER WTR PRODS COM SER A 624758108 45,428 1,063 2.40 533 -7.14 0.0001
2022-05-13 2022-03-31 13F MUELLER WTR PRODS COM SER A 624758108 44,365 1,950 4.60 574 -5.90 0.0000
2022-02-14 2021-12-31 13F MUELLER WTR PRODS COM SER A 624758108 42,415 2,429 6.07 610 0.33 0.0000
2022-02-14 2021-09-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 39,986 2,086 5.50 608 11.15 0.0000
2021-11-15 2021-09-30 13F MUELLER WTR PRODS COM SER A 624758108 39,986 2,086 608 0.0000
2021-08-13 2021-06-30 13F MUELLER WTR PRODS COM SER A 624758108 37,900 4,504 13.49 547 17.89 0.0000
2021-05-14 2021-03-31 13F MUELLER WTR PRODS COM SER A 624758108 33,396 32,132 2,542.09 464 2,800.00 0.0000
2021-02-08 2020-12-31 13F MUELLER WTR PRODS COM SER A 624758108 1,264 -2,328 -64.81 16 -56.76 0.0000
2020-11-13 2020-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,592 2,531 238.55 37 270.00 0.0000
2020-08-24 2020-06-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 1,061 -424 -28.55 10 -16.67 0.0000
2020-08-13 2020-06-30 13F MUELLER WTR PRODS COM SER A 624758108 1,061 -424 10 0.2457
2020-05-14 2020-03-31 13F MUELLER WTR PRODS COM SER A 624758108 1,485 12 0.81 12 -33.33 0.0000
2020-02-07 2019-12-31 13F MUELLER WTR PRODS COM SER A 624758108 1,473 466 46.28 18 63.64 0.0000
2019-11-13 2019-09-30 13F MUELLER WTR PRODS COM SER A 624758108 1,007 480 91.08 11 120.00 0.0000
2019-08-13 2019-06-30 13F MUELLER WTR PRODS COM SER A 624758108 527 1 0.19 5 0.00 0.0000
2019-05-13 2019-03-31 13F MUELLER WTR PRODS COM SER A 624758108 526 217 70.23 5 66.67 0.0000
2019-02-13 2018-12-31 13F MUELLER WTR PRODS COM SER A 624758108 309 -413 -57.20 3 -62.50 0.0000
2018-11-09 2018-09-30 13F MUELLER WTR PRODS COM SER A 624758108 722 722 8 0.0000
2014-08-14 2014-06-30 13F MUELLER WTR PRODS COM SER A 624758108 0 -1,805,500 -100.00 0 -100.00
2014-05-15 2014-03-31 13F MUELLER WTR PRODS COM SER A 624758108 1,805,500 1,805,500 17,152 0.0024
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.