Mueller Water Products, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership113,205 shares
Latest Disclosed Value $ 3,112,005
Asset Management One Co., Ltd. reports 16.53% increase in ownership of MWA / Mueller Water Products, Inc.

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 113,205 shares of Mueller Water Products, Inc. (US:MWA) valued at $3,112,005 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 97,147 shares of Mueller Water Products, Inc.. This represents a change in shares of 16.53% during the quarter. The current value of the position is $2,867,483 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)
2026-05-08 2026-03-31 13F MUELLER WTR PRODS COM SER A 624758108 113,205 16,058 16.53 3,112 30.32 0.0092
2026-01-27 2025-12-31 13F MUELLER WTR PRODS COM SER A 624758108 97,147 -19,978 -17.06 2,389 -20.11 0.0066
2025-10-22 2025-09-30 13F MUELLER WTR PRODS COM SER A 624758108 117,125 0 0.00 2,989 6.18 0.0087
2025-07-31 2025-06-30 13F MUELLER WTR PRODS COM SER A 624758108 117,125 -55,377 -32.10 2,816 -35.80 0.0088
2025-04-23 2025-03-31 13F MUELLER WTR PRODS COM SER A 624758108 172,502 22,279 14.83 4,385 29.16 0.0152
2025-01-30 2024-12-31 13F MUELLER WTR PRODS COM SER A 624758108 150,223 64,163 74.56 3,395 81.84 0.0117
2024-10-30 2024-09-30 13F MUELLER WTR PRODS COM SER A 624758108 86,060 -11,228 -11.54 1,868 7.11 0.0066
2024-07-18 2024-06-30 13F MUELLER WTR PRODS COM SER A 624758108 97,288 0 0.00 1,743 11.37 0.0067
2024-05-02 2024-03-31 13F MUELLER WTR PRODS COM SER A 624758108 97,288 -13,116 -11.88 1,565 -2.86 0.0060
2024-01-24 2023-12-31 13F MUELLER WTR PRODS COM SER A 624758108 110,404 0 0.00 1,612 15.15 0.0065
2023-10-19 2023-09-30 13F MUELLER WTR PRODS COM SER A 624758108 110,404 0 0.00 1,400 -21.89 0.0062
2023-07-31 2023-06-30 13F MUELLER WTR PRODS COM SER A 624758108 110,404 -12,870 -10.44 1,792 4.25 0.0076
2023-04-25 2023-03-31 13F MUELLER WTR PRODS COM SER A 624758108 123,274 -15,096 -10.91 1,718 14.46 0.0078
2023-02-06 2022-12-31 13F MUELLER WTR PRODS COM SER A 624758108 138,370 0 0.00 1,501 5.63 0.0073
2022-11-04 2022-09-30 13F MUELLER WTR PRODS COM SER A 624758108 138,370 -17,567 -11.27 1,421 -22.31 0.0072
2022-07-29 2022-06-30 13F MUELLER WTR PRODS COM SER A 624758108 155,937 -20,596 -11.67 1,829 -19.78 0.0086
2022-05-13 2022-03-31 13F MUELLER WTR PRODS COM SER A 624758108 176,533 0 0.00 2,280 -10.90 0.0089
2022-02-09 2021-12-31 13F MUELLER WTR PRODS COM SER A 624758108 176,533 0 0.00 2,559 -4.73 0.0089
2021-11-02 2021-09-30 13F MUELLER WTR PRODS COM SER A 624758108 176,533 0 0.00 2,686 5.54 0.0103
2021-08-03 2021-06-30 13F MUELLER WTR PRODS COM SER A 624758108 176,533 99,430 128.96 2,545 137.85 0.0095
2021-05-14 2021-03-31 13F MUELLER WTR PRODS COM SER A 624758108 77,103 0 0.00 1,070 14.81 0.0042
2021-02-12 2020-12-31 13F MUELLER WTR PRODS COM SER A 624758108 77,103 0 0.00 932 16.35 0.0038
2020-11-13 2020-09-30 13F MUELLER WTR PRODS COM SER A 624758108 77,103 0 0.00 801 10.18 0.0037
2020-08-14 2020-06-30 13F MUELLER WTR PRODS COM SER A 624758108 77,103 0 0.00 727 17.64 0.0036
2020-05-14 2020-03-31 13F MUELLER WTR PRODS COM SER A 624758108 77,103 0 0.00 618 -33.12 0.0036
2020-02-14 2019-12-31 13F MUELLER WTR PRODS COM SER A 624758108 77,103 -22,869 -22.88 924 -17.79 0.0042
2019-11-14 2019-09-30 13F MUELLER WTR PRODS COM SER A 624758108 99,972 -16,844 -14.42 1,124 -2.01 0.0054
2019-08-14 2019-06-30 13F MUELLER WTR PRODS COM SER A 624758108 116,816 -24,678 -17.44 1,147 -19.28 0.0056
2019-05-15 2019-03-31 13F MUELLER WTR PRODS COM SER A 624758108 141,494 0 0.00 1,421 8.89 0.0077
2019-02-13 2018-12-31 13F MUELLER WTR PRODS COM SER A 624758108 141,494 -39,389 -21.78 1,305 -37.20 0.0031
2018-11-14 2018-09-30 13F MUELLER WTR PRODS COM SER A 624758108 180,883 -22,121 -10.90 2,078 -11.91 0.0043
2018-08-14 2018-06-30 13F MUELLER WTR PRODS COM SER A 624758108 203,004 0 0.00 2,359 6.89 0.0052
2018-05-14 2018-03-31 13F MUELLER WTR PRODS COM SER A 624758108 203,004 203,004 2,207 0.0050
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.