Mueller Water Products, Inc.
US ˙ NYSE ˙ US6247581084

SecurityMWA / Mueller Water Products, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership469,168 shares
Latest Disclosed Value $ 12,897,441
Brown Advisory Inc reports 59.62% decrease in ownership of MWA / Mueller Water Products, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 469,168 shares of Mueller Water Products, Inc. (US:MWA) valued at $12,897,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,161,816 shares of Mueller Water Products, Inc.. This represents a change in shares of -59.62% during the quarter. The current value of the position is $11,771,425 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 469,168 -692,648 -59.62 12,897 -53.40 0.0212
2026-02-13 2025-12-31 13F MUELLER WTR PRODS COM SER A 624758108 1,161,816 -238,949 -17.06 27,674 -22.58 0.0386
2025-11-14 2025-09-30 13F MUELLER WTR PRODS COM SER A 624758108 1,400,765 -249,828 -15.14 35,748 -9.91 0.0465
2025-08-13 2025-06-30 13F MUELLER WTR PRODS COM SER A 624758108 1,650,593 -1,377,612 -45.49 39,680 -48.45 0.0522
2025-04-30 2025-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,028,205 -318,352 -9.51 76,977 2.23 0.1100
2025-02-14 2024-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,346,557 -841,775 -20.10 75,298 -17.15 0.0955
2024-11-13 2024-09-30 13F MUELLER WTR PRODS COM SER A 624758108 4,188,332 -617,469 -12.85 90,887 5.54 0.1141
2024-08-14 2024-06-30 13F MUELLER WTR PRODS COM SER A 624758108 4,805,801 -1,991,155 -29.29 86,120 -21.25 0.1126
2024-04-24 2024-03-31 13F MUELLER WTR PRODS COM SER A 624758108 6,796,956 56,063 0.83 109,363 12.67 0.1462
2024-02-08 2023-12-31 13F MUELLER WTR PRODS COM SER A 624758108 6,740,893 430,572 6.82 97,069 21.31 0.1365
2023-10-25 2023-09-30 13F MUELLER WTR PRODS COM SER A 624758108 6,310,321 95,661 1.54 80,015 -20.67 0.1313
2023-07-31 2023-06-30 13F MUELLER WTR PRODS COM SER A 624758108 6,214,660 -106,017 -1.68 100,864 14.47 0.1576
2023-05-08 2023-03-31 13F MUELLER WTR PRODS COM SER A 624758108 6,320,677 3,772,093 148.01 88,110 221.31 0.1492
2023-02-13 2022-12-31 13F MUELLER WTR PRODS COM SER A 624758108 2,548,584 -94,532 -3.58 27,423 1.02 0.0509
2022-11-14 2022-09-30 13F MUELLER WTR PRODS COM SER A 624758108 2,643,116 -17,852 -0.67 27,145 -13.04 0.0528
2022-11-14 2022-06-30 13F/A-2 MUELLER WTR PRODS COM SER A 624758108 2,660,968 -50,771 -1.87 31,214 -10.91 0.0587
2022-09-13 2022-06-30 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 2,660,968 -50,771 31,214 0.0540
2022-08-02 2022-06-30 13F MUELLER WTR PRODS COM SER A 624758108 2,645,948 -51,790 31,245 0.0208
2022-11-14 2022-03-31 13F/A-2 MUELLER WTR PRODS COM SER A 624758108 2,711,739 157,383 6.16 35,035 -4.75 0.0522
2022-09-13 2022-03-31 13F/A-1 MUELLER WTR PRODS COM SER A 624758108 2,711,739 157,383 35,035 0.0492
2022-05-09 2022-03-31 13F MUELLER WTR PRODS COM SER A 624758108 2,697,738 143,382 34,970 0.0475
2022-01-27 2021-12-31 13F MUELLER WTR PRODS COM SER A 624758108 2,554,356 114,356 4.69 36,783 -0.95 0.0456
2021-11-12 2021-09-30 13F MUELLER WTR PRODS COM SER A 624758108 2,440,000 316,042 14.88 37,137 21.26 0.0548
2021-07-29 2021-06-30 13F MUELLER WTR PRODS COM SER A 624758108 2,123,958 -19,710 -0.92 30,627 2.86 0.0462
2021-05-14 2021-03-31 13F MUELLER WTR PRODS COM SER A 624758108 2,143,668 113,380 5.58 29,775 18.46 0.0509
2021-02-12 2020-12-31 13F MUELLER WTR PRODS COM SER A 624758108 2,030,288 14,214 0.71 25,135 19.99 0.0446
2020-11-16 2020-09-30 13F MUELLER WTR PRODS COM SER A 624758108 2,016,074 -7,373 -0.36 20,947 9.78 0.0433
2020-08-14 2020-06-30 13F MUELLER WTR PRODS COM SER A 624758108 2,023,447 -485,941 -19.36 19,081 -5.07 0.0445
2020-05-15 2020-03-31 13F MUELLER WTR PRODS COM SER A 624758108 2,509,388 -527,911 -17.38 20,100 -44.76 0.0616
2020-02-14 2019-12-31 13F MUELLER WTR PRODS COM SER A 624758108 3,037,299 -2,958 -0.10 36,387 6.48 0.0923
2019-11-14 2019-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,040,257 -154,190 -4.83 34,173 8.94 0.0959
2019-08-12 2019-06-30 13F MUELLER WTR PRODS COM SER A 624758108 3,194,447 -22,294 -0.69 31,368 -2.88 0.0897
2019-05-15 2019-03-31 13F MUELLER WTR PRODS COM SER A 624758108 3,216,741 369,448 12.98 32,297 24.65 0.0916
2019-02-13 2018-12-31 13F MUELLER WTR PRODS COM SER A 624758108 2,847,293 -221,634 -7.22 25,910 -26.65 0.0870
2018-11-13 2018-09-30 13F MUELLER WTR PRODS COM SER A 624758108 3,068,927 1,016,607 49.53 35,323 46.85 0.1005
2018-08-10 2018-06-30 13F MUELLER WTR PRODS COM SER A 624758108 2,052,320 2,052,320 24,053 0.0740
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.