Mueller Water Products, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership44,940 shares
Latest Disclosed Value $ 1,235
Amalgamated Bank reports 1.02% decrease in ownership of MWA / Mueller Water Products, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 44,940 shares of Mueller Water Products, Inc. (US:MWA) valued at $1,235,401 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 45,403 shares of Mueller Water Products, Inc.. This represents a change in shares of -1.02% during the quarter. The current value of the position is $1,138,330 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 WATER PRODUCTS INC-A COM 624758108 44,940 -463 -1.02 1 0.00 0.0095
2026-02-05 2025-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 45,403 812 1.82 1 0.00 0.0078
2025-10-29 2025-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 44,591 23 0.05 1 0.00 0.0081
2025-08-04 2025-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 44,568 1 0.00 1 0.00 0.0083
2025-04-25 2025-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 44,567 39,269 741.20 1 0.0097
2025-02-04 2024-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 5,298 -154 -2.82 0 0.0010
2024-10-30 2024-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 5,452 0 0.00 0 0.0010
2024-08-12 2024-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 5,452 115 2.15 0 0.0008
2024-04-23 2024-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 5,337 -17,302 -76.43 0 0.0007
2024-02-06 2023-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 22,639 -1,588 -6.55 0 0.0026
2023-11-08 2023-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 24,227 550 2.32 0 0.0026
2023-08-11 2023-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 23,677 1,568 7.09 0 0.0031
2023-05-02 2023-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 22,109 -3,821 -14.74 0 0.0026
2023-02-10 2022-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 25,930 846 3.37 0 -100.00 0.0025
2022-11-09 2022-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 25,084 398 1.61 258 -11.03 0.0025
2022-08-15 2022-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 24,686 5,231 26.89 290 15.54 0.0027
2022-08-25 2022-03-31 13F/A-1 MUELLER WATER PRODUCTS INC-A COM 624758108 19,455 -1,454 -6.95 251 -16.61 0.0019
2022-06-30 2022-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 19,455 -1,454 251 0.0020
2022-02-15 2021-12-31 13F/A-1 MUELLER WATER PRODUCTS INC-A COM 624758108 20,909 -222 -1.05 301 -6.52 0.0022
2022-02-15 2021-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 20,909 -222 301 0.0022
2021-10-29 2021-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 21,131 -1,504 -6.64 322 -1.23 0.0027
2021-08-16 2021-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 22,635 9,426 71.36 326 78.14 0.0026
2021-05-13 2021-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 13,209 -1,019 -7.16 183 3.98 0.0069
2021-02-12 2020-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 14,228 53 0.37 176 19.73 0.0067
2020-10-30 2020-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 14,175 -44 -0.31 147 9.70 0.0064
2020-08-10 2020-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 14,219 -12,285 -46.35 134 -36.79 0.0062
2020-05-13 2020-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 26,504 -891 -3.25 212 -35.37 0.0052
2020-02-13 2019-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 27,395 1,633 6.34 328 13.10 0.0060
2019-11-13 2019-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 25,762 -349 -1.34 290 13.28 0.0061
2019-08-14 2019-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 26,111 3,268 14.31 256 11.79 0.0060
2019-05-15 2019-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 22,843 912 4.16 229 14.50 0.0055
2019-02-15 2018-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 21,931 8,048 57.97 200 25.00 0.0057
2018-11-14 2018-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 13,883 -8,663 -38.42 160 -39.39 0.0040
2018-07-18 2018-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 22,546 2,114 10.35 264 18.92 0.0065
2018-05-22 2018-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 20,432 -446 -2.14 222 -15.27 0.0059
2018-02-13 2017-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 20,878 1,395 7.16 262 5.22 0.0071
2017-11-09 2017-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 19,483 -120 -0.61 249 8.73 0.0078
2017-08-10 2017-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 19,603 500 2.62 229 1.33 0.0075
2017-05-12 2017-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 19,103 -24 -0.13 226 -11.37 0.0112
2017-02-14 2016-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 19,127 2,634 15.97 255 23.19 0.0115
2016-11-15 2016-09-30 13F/A-1 MUELLER WATER PRODUCTS INC-A COM 624758108 16,493 22 0.13 207 0.98 0.0120
2016-08-16 2016-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 16,471 -454 -2.68 205 22.75 0.0119
2016-05-11 2016-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 16,925 1,513 9.82 167 25.56 0.0163
2016-02-10 2015-12-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 15,412 -1,502 -8.88 133 2.31 0.0164
2015-11-04 2015-09-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 16,914 269 1.62 130 -13.91 0.0136
2015-07-10 2015-06-30 13F MUELLER WATER PRODUCTS INC-A COM 624758108 16,645 458 2.83 151 -5.03 0.0148
2015-04-22 2015-03-31 13F MUELLER WATER PRODUCTS INC-A COM 624758108 16,187 16,187 0.00 159 0.0194
2015-01-29 2014-12-31 13F MUELLER WATER PRODUCTS COM 624758108 0 -15,539 -100.00 0 -100.00
2014-11-14 2014-09-30 13F MUELLER WATER PRODUCTS COM 624758108 15,539 -6 -0.04 129 -3.73 0.0192
2014-08-11 2014-06-30 13F MUELLER WATER PRODUCTS COM 624758108 15,545 -679 -4.19 134 -12.99 0.0202
2014-05-12 2014-03-31 13F MUELLER WATER PRODUCTS INC COM COM 624758108 16,224 -145 -0.89 154 0.65 0.0265
2014-02-13 2013-12-31 13F MUELLER WATER PRODUCTS INC COM COM 624758108 16,369 16,369 153 0.0260
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.