Mueller Water Products, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership0 shares
Ownership 0.00%
Vanguard Group Inc ownership in MWA / Mueller Water Products, Inc.

2026-03-27 - Vanguard Group Inc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 0 shares of Mueller Water Products, Inc. (US:MWA). This represents 0.0 percent ownership of the company. In their previous filing dated 2025-04-30 , Vanguard Group Inc had reported owning 19,794,972 shares, indicating a decrease of -100.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-03-27 2026-03-27 13G/A 19,794,972 0 -100.00 0.00 -100.00
2025-04-30 2025-04-30 13G/A 15,859,593 19,794,972 24.81 12.64 24.04
2024-06-10 2024-06-10 13G/A 15,002,856 15,859,593 5.71 10.19 6.04
2024-02-13 2024-02-13 13G/A 14,596,851 15,002,856 2.78 9.61 2.78
2023-02-09 2023-02-09 13G/A 14,378,750 14,596,851 1.52 9.35 1.96
2022-02-10 2022-02-10 13G/A 13,804,752 14,378,750 4.16 9.17 5.16
2021-02-10 2021-02-10 13G/A 14,376,199 13,804,752 -3.97 8.72 -4.18
2020-02-12 2020-02-12 13G/A 13,932,004 14,376,199 3.19 9.10 3.29
2019-02-11 2019-02-11 13G/A 12,715,730 13,932,004 9.57 8.81 9.85
2018-02-09 2018-02-09 13G/A 11,632,394 12,715,730 9.31 8.02 11.85
2017-02-10 2017-02-10 13G/A 10,421,634 11,632,394 11.62 7.17 10.48
2016-02-10 2016-02-10 13G/A 10,421,634 6.49
2015-02-11 2015-02-11 13G/A 10,374,496 6.46
2014-02-11 2014-02-11 13G/A 10,199,228 6.44
2013-02-12 2013-02-12 13G 9,426,494 6.00

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F MUELLER WTR PRODS COM SER A 624758108 19,452,025 -137,141 -0.70 463,347 -7.31 0.0067
2025-11-07 2025-09-30 13F MUELLER WTR PRODS COM SER A 624758108 19,589,166 -258,426 -1.30 499,916 4.77 0.0075
2025-08-11 2025-06-30 13F MUELLER WTR PRODS COM SER A 624758108 19,847,592 52,110 0.26 477,136 -5.18 0.0077
2025-05-09 2025-03-31 13F MUELLER WTR PRODS COM SER A 624758108 19,795,482 2,840,895 16.76 503,201 31.91 0.0091
2025-02-11 2024-12-31 13F MUELLER WTR PRODS COM SER A 624758108 16,954,587 378,356 2.28 381,478 6.05 0.0066
2024-11-13 2024-09-30 13F MUELLER WTR PRODS COM SER A 624758108 16,576,231 679,554 4.27 359,704 26.27 0.0064
2024-08-13 2024-06-30 13F MUELLER WTR PRODS COM SER A 624758108 15,896,677 665,468 4.37 284,868 16.24 0.0055
2024-05-10 2024-03-31 13F MUELLER WTR PRODS COM SER A 624758108 15,231,209 227,843 1.52 245,070 13.43 0.0049
2024-03-11 2023-12-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 15,003,366 147,482 0.99 216,048 14.69 0.0047
2024-02-14 2023-12-31 13F MUELLER WTR PRODS COM SER A 624758108 15,003,366 147,482 216,048 0.0041
2023-12-18 2023-09-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 14,855,884 40,079 0.27 188,373 -21.66 0.0046
2023-11-14 2023-09-30 13F MUELLER WTR PRODS COM SER A 624758108 14,855,884 40,079 188,373 0.0008
2023-08-14 2023-06-30 13F MUELLER WTR PRODS COM SER A 624758108 14,815,805 7,798 0.05 240,461 16.49 0.0057
2023-07-14 2023-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 14,808,007 211,156 1.45 206,424 31.43 0.0053
2023-05-15 2023-03-31 13F MUELLER WTR PRODS COM SER A 624758108 14,807,497 210,646 206,417 0.0011
2023-02-10 2022-12-31 13F MUELLER WTR PRODS COM SER A 624758108 14,596,851 204,472 1.42 157,062 6.26 0.0043
2022-11-14 2022-09-30 13F MUELLER WTR PRODS COM SER A 624758108 14,392,379 -53,453 -0.37 147,810 -12.77 0.0043
2022-08-12 2022-06-30 13F MUELLER WTR PRODS COM SER A 624758108 14,445,832 187,110 1.31 169,450 -8.02 0.0048
2022-05-13 2022-03-31 13F MUELLER WTR PRODS COM SER A 624758108 14,258,722 -120,028 -0.83 184,223 -11.03 0.0044
2022-02-14 2021-12-31 13F MUELLER WTR PRODS COM SER A 624758108 14,378,750 -17,171 -0.12 207,054 -5.50 0.0047
2021-11-12 2021-09-30 13F MUELLER WTR PRODS COM SER A 624758108 14,395,921 -85,432 -0.59 219,106 4.93 0.0054
2021-08-13 2021-06-30 13F MUELLER WTR PRODS COM SER A 624758108 14,481,353 165,793 1.16 208,821 5.02 0.0052
2021-05-14 2021-03-31 13F MUELLER WTR PRODS COM SER A 624758108 14,315,560 510,809 3.70 198,842 16.35 0.0054
2021-02-12 2020-12-31 13F MUELLER WTR PRODS COM SER A 624758108 13,804,751 204,740 1.51 170,903 20.95 0.0050
2020-11-16 2020-09-30 13F MUELLER WTR PRODS COM SER A 624758108 13,600,011 -519,230 -3.68 141,304 6.13 0.0047
2020-08-14 2020-06-30 13F MUELLER WTR PRODS COM SER A 624758108 14,119,241 -417,254 -2.87 133,145 14.35 0.0047
2020-05-15 2020-03-31 13F MUELLER WTR PRODS COM SER A 624758108 14,536,495 160,296 1.12 116,437 -32.39 0.0050
2020-02-14 2019-12-31 13F MUELLER WTR PRODS COM SER A 624758108 14,376,199 -37,555 -0.26 172,228 6.31 0.0059
2019-11-14 2019-09-30 13F MUELLER WTR PRODS COM SER A 624758108 14,413,754 161,597 1.13 162,011 15.76 0.0060
2019-08-14 2019-06-30 13F MUELLER WTR PRODS COM SER A 624758108 14,252,157 105,246 0.74 139,957 -1.46 0.0053
2019-05-15 2019-03-31 13F MUELLER WTR PRODS COM SER A 624758108 14,146,911 214,907 1.54 142,035 12.03 0.0056
2019-02-14 2018-12-31 13F MUELLER WTR PRODS COM SER A 624758108 13,932,004 161,836 1.18 126,782 -20.01 0.0057
2018-12-13 2018-09-30 13F/A-2 MUELLER WTR PRODS COM SER A 624758108 13,770,168 64,853 0.47 158,494 -1.33 0.0062
2018-11-23 2018-09-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 13,770,168 0 158,494 0.0062
2018-11-14 2018-09-30 13F MUELLER WTR PRODS COM SER A 624758108 13,770,168 64,853 158,494
2018-08-14 2018-06-30 13F MUELLER WTR PRODS COM SER A 624758108 13,705,315 406,600 3.06 160,626 11.12 0.0067
2018-05-15 2018-03-31 13F MUELLER WTR PRODS COM SER A 624758108 13,298,715 582,985 4.58 144,557 -9.27 0.0063
2018-02-14 2017-12-31 13F MUELLER WTR PRODS COM SER A 624758108 12,715,730 109,063 0.87 159,329 -1.26 0.0070
2017-11-14 2017-09-30 13F MUELLER WTR PRODS COM SER A 624758108 12,606,667 3,273 0.03 161,366 9.62 0.0075
2017-08-24 2017-06-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 12,603,394 -46,949 -0.37 147,208 -1.55 0.0073
2017-08-11 2017-06-30 13F MUELLER WTR PRODS COM SER A 624758108 12,603,394 -46,949 147,208
2017-05-12 2017-03-31 13F MUELLER WTR PRODS COM SER A 624758108 12,650,343 1,017,949 8.75 149,528 -3.42 0.0077
2017-02-14 2016-12-31 13F MUELLER WTR PRODS COM SER A 624758108 11,632,394 361,717 3.21 154,828 9.46 0.0086
2016-11-14 2016-09-30 13F MUELLER WTR PRODS COM SER A 624758108 11,270,677 325,103 2.97 141,448 13.16 0.0083
2016-08-10 2016-06-30 13F MUELLER WTR PRODS COM SER A 624758108 10,945,574 468,074 4.47 124,999 20.75 0.0078
2016-05-13 2016-03-31 13F MUELLER WTR PRODS COM SER A 624758108 10,477,500 55,866 0.54 103,517 15.50 0.0067
2016-02-08 2015-12-31 13F MUELLER WTR PRODS COM SER A 624758108 10,421,634 263,259 2.59 89,626 15.18 0.0060
2015-11-12 2015-09-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 10,158,375 496,337 5.14 77,813 -11.50 0.0033
2015-08-13 2015-06-30 13F MUELLER WTR PRODS COM SER A 624758108 9,662,038 289,244 3.09 87,924 -4.76 0.0059
2015-05-15 2015-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 9,372,794 -1,001,702 -9.66 92,321 -13.10 0.0063
2015-05-14 2015-03-31 13F MUELLER WTR PRODS COM SER A 624758108 9,372,794 92,321
2015-02-12 2014-12-31 13F MUELLER WTR PRODS COM SER A 624758108 10,374,496 129,940 1.27 106,235 25.24 0.0077
2014-11-12 2014-09-30 13F MUELLER WTR PRODS COM SER A 624758108 10,244,556 64,474 0.63 84,825 -3.56 0.0066
2014-08-11 2014-06-30 13F MUELLER WTR PRODS COM SER A 624758108 10,180,082 -24,707 -0.24 87,956 -9.27 0.0069
2014-05-13 2014-03-31 13F MUELLER WTR PRODS COM SER A 624758108 10,204,789 5,561 0.05 96,945 1.44 0.0082
2014-02-12 2013-12-31 13F MUELLER WTR PRODS COM SER A 624758108 10,199,228 344,957 3.50 95,567 21.38 0.0084
2013-11-07 2013-09-30 13F MUELLER WTR PRODS COM SER A 624758108 9,854,271 294,530 3.08 78,735 19.19 0.0077
2013-08-13 2013-06-30 13F MUELLER WTR PRODS COM SER A 624758108 9,559,741 9,559,741 66,059 0.0069
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.