뮬러 워터 프로덕츠, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership6,232,171 shares
Latest Disclosed Value $ 171,322,381
State Street Corp reports 1.08% increase in ownership of MWA / Mueller Water Products, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 6,232,171 shares of Mueller Water Products, Inc. (US:MWA) valued at $171,322,381 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,165,849 shares of Mueller Water Products, Inc.. This represents a change in shares of 1.08% during the quarter. The current value of the position is $157,860,891 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 6,232,171 66,322 1.08 171,322 16.65 0.0059
2026-02-13 2025-12-31 13F MUELLER WTR PRODS COM SER A 624758108 6,165,849 250,461 4.23 146,871 -2.71 0.0049
2025-11-14 2025-09-30 13F MUELLER WTR PRODS COM SER A 624758108 5,915,388 -49,657 -0.83 150,961 5.27 0.0052
2025-08-14 2025-06-30 13F MUELLER WTR PRODS COM SER A 624758108 5,965,045 -42,253 -0.70 143,400 -6.09 0.0054
2025-05-15 2025-03-31 13F MUELLER WTR PRODS COM SER A 624758108 6,007,298 2,117,237 54.43 152,706 74.47 0.0063
2025-02-14 2024-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,890,061 -41,601 -1.06 87,526 2.59 0.0035
2024-11-14 2024-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,931,662 12,438 0.32 85,317 21.48 0.0035
2024-08-14 2024-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,919,224 296,285 8.18 70,232 20.48 0.0031
2024-05-15 2024-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,622,939 44,796 1.25 58,293 13.14 0.0026
2024-02-14 2023-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,578,143 174,630 5.13 51,525 19.39 0.0025
2023-11-14 2023-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,403,513 23,651 0.70 43,157 -21.33 0.0024
2023-08-14 2023-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,379,862 -90,496 -2.61 54,855 13.39 0.0029
2023-05-15 2023-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,470,358 25,548 0.74 48,377 30.51 0.0027
2023-05-15 2022-12-31 13F/A-99 MUELLER WTR PRODS COM SER A 624758108 3,444,810 78,664 2.34 37,066 7.22 0.0022
2023-05-15 2022-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,444,810 78,664 37,066 0.0022
2022-11-15 2022-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,366,146 -33,887 -1.00 34,570 -13.32 0.0022
2022-08-15 2022-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,400,033 -83,071 -2.38 39,882 -11.38 0.0024
2022-05-16 2022-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,483,104 109,494 3.25 45,002 -7.37 0.0022
2022-02-14 2021-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,373,610 -3,471 -0.10 48,580 -5.48 0.0023
2021-11-15 2021-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,377,081 14,662 0.44 51,399 6.01 0.0027
2021-08-16 2021-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,362,419 75,276 2.29 48,486 6.19 0.0026
2021-07-09 2021-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 3,287,143 -64,528 -1.93 45,658 10.04 0.0026
2021-05-17 2021-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,287,143 -64,528 45,658 0.0026
2021-02-16 2020-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,351,671 982 0.03 41,494 19.19 0.0025
2020-11-10 2020-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,350,689 -119,086 -3.43 34,814 6.40 0.0024
2020-08-14 2020-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,469,775 -8,249 -0.24 32,720 17.45 0.0024
2020-06-19 2020-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 3,478,024 72,245 2.12 27,859 -31.72 0.0024
2020-05-11 2020-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,478,024 72,245 27,859 2,446.5811
2020-02-06 2019-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,405,779 -685 -0.02 40,801 6.56 0.0028
2019-11-14 2019-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,406,464 64,664 1.94 38,289 16.68 0.0029
2019-08-14 2019-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,341,800 133,661 4.17 32,816 1.88 0.0024
2019-05-15 2019-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,208,139 97,366 3.13 32,210 13.78 0.0025
2019-02-12 2018-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,110,773 22,566 0.73 28,308 -20.37 0.0026
2018-11-09 2018-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 3,088,207 74,842 2.48 35,549 0.65 0.0027
2018-08-14 2018-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 3,013,365 -21,719 -0.72 35,319 7.06 0.0030
2018-05-15 2018-03-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 3,035,084 -50,745 -1.64 32,990 -14.67 0.0028
2018-02-14 2017-12-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 3,085,829 121,225 4.09 38,662 1.88 0.0031
2017-11-14 2017-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,964,604 -35,198 -1.17 37,948 8.31 0.0033
2017-08-14 2017-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,999,802 169,956 6.01 35,037 4.76 0.0031
2017-05-15 2017-03-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,829,846 -123,064 -4.17 33,445 -14.90 0.0030
2017-02-09 2016-12-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,952,910 63,829 2.21 39,303 8.40 0.0037
2017-01-13 2016-09-30 13F/A-1 MUELLER WATER PRODUCTS Common equity shares 624758108 2,889,081 61,932 2.19 36,257 12.31 0.0037
2016-11-14 2016-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,889,081 36,257
2016-08-12 2016-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,827,149 -39,026 -1.36 32,284 14.01 0.0035
2016-05-20 2016-03-31 13F/A-1 MUELLER WATER PRODUCTS Common equity shares 624758108 2,866,175 163,171 6.04 28,318 21.81 0.0031
2016-05-12 2016-03-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,866,175 28,318
2016-02-16 2015-12-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,703,004 24,275 0.91 23,247 13.32 0.0025
2015-11-16 2015-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,678,729 -67,359 -2.45 20,514 -17.91 0.0024
2015-08-13 2015-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,746,088 4,784 0.17 24,991 -7.46 0.0027
2015-05-15 2015-03-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,741,304 20,135 0.74 27,007 -3.08 0.0028
2015-02-11 2014-12-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,721,169 -17,827 -0.65 27,865 22.89 0.0028
2014-11-12 2014-09-30 13F/A-1 MUELLER WATER PRODUCTS Common equity shares 624758108 2,738,996 -108,472 -3.81 22,674 -7.84 0.0024
2014-11-10 2014-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,738,996 22,674
2014-08-12 2014-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,847,468 -44,453 -1.54 24,604 -10.45 0.0027
2014-05-15 2014-03-31 13F/A-1 MUELLER WATER PRODUCTS Common equity shares 624758108 2,891,921 -12,012 -0.41 27,475 0.98 0.0031
2014-05-13 2014-03-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,891,921 27,475
2014-02-06 2013-12-31 13F/A-1 MUELLER WATER PRODUCTS Common equity shares 624758108 2,903,933 -21,659 -0.74 27,208 16.39 0.0030
2014-02-06 2013-12-31 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,882,209 16,168
2013-11-12 2013-09-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,925,592 3,459 0.12 23,377 15.79 0.0029
2013-08-08 2013-06-30 13F MUELLER WATER PRODUCTS Common equity shares 624758108 2,922,133 2,922,133 20,189 0.0026
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.