ミューラー・インダストリーズ社
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionPrincipal Financial Group Inc
Latest Disclosed Ownership247,671 shares
Latest Disclosed Value $ 27,441,946
Principal Financial Group Inc reports 3.78% increase in ownership of MLI / Mueller Industries, Inc.

On May 4, 2026 - Principal Financial Group Inc filed a 13F-HR form disclosing ownership of 247,671 shares of Mueller Industries, Inc. (US:MLI) valued at $27,441,947 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 238,646 shares of Mueller Industries, Inc.. This represents a change in shares of 3.78% during the quarter. The current value of the position is $32,890,709 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)
2026-05-04 2026-03-31 13F MUELLER INDS COM 624756102 247,671 9,025 3.78 27,442 0.16 0.0147
2026-02-02 2025-12-31 13F MUELLER INDS COM 624756102 238,646 -7,115 -2.90 27,397 10.25 0.0140
2025-11-04 2025-09-30 13F MUELLER INDS COM 624756102 245,761 -5,028 -2.00 24,849 24.68 0.0125
2025-08-08 2025-06-30 13F MUELLER INDS COM 624756102 250,789 -60,181 -19.35 19,930 -15.83 0.0105
2025-04-28 2025-03-31 13F MUELLER INDS COM 624756102 310,970 2,494 0.81 23,677 -3.28 0.0133
2025-01-31 2024-12-31 13F MUELLER INDS COM 624756102 308,476 -267,413 -46.43 24,481 -42.63 0.0133
2024-10-31 2024-09-30 13F MUELLER INDS COM 624756102 575,889 -31,420 -5.17 42,673 23.40 0.0235
2024-07-29 2024-06-30 13F MUELLER INDS COM 624756102 607,309 -19,664 -3.14 34,580 2.27 0.0205
2024-04-29 2024-03-31 13F MUELLER INDS COM 624756102 626,973 -1,088 -0.17 33,813 14.18 0.0199
2024-02-07 2023-12-31 13F MUELLER INDS COM 624756102 628,061 309,274 97.02 29,613 23.59 0.0189
2023-11-02 2023-09-30 13F MUELLER INDS COM 624756102 318,787 -14,306 -4.29 23,960 -17.58 0.0172
2023-08-07 2023-06-30 13F MUELLER INDS COM 624756102 333,093 -18,930 -5.38 29,072 12.39 0.0199
2023-05-09 2023-03-31 13F MUELLER INDS COM 624756102 352,023 -7,204 -2.01 25,867 22.04 0.0185
2023-02-09 2022-12-31 13F MUELLER INDS COM 624756102 359,227 -3,918 -1.08 21,194 -1.81 0.0160
2022-11-09 2022-09-30 13F MUELLER INDS COM 624756102 363,145 -25,660 -6.60 21,585 4.18 0.0172
2022-08-10 2022-06-30 13F MUELLER INDS COM 624756102 388,805 -22,187 -5.40 20,719 -6.94 0.0153
2022-05-09 2022-03-31 13F MUELLER INDS COM 624756102 410,992 -16,113 -3.77 22,263 -12.19 0.0088
2022-05-09 2022-03-31 13F MUELLER INDS COM 624756102 404,286 21,900
2022-02-09 2021-12-31 13F MUELLER INDS COM 624756102 427,105 -29,419 -6.44 25,353 35.12 0.0151
2021-11-09 2021-09-30 13F MUELLER INDS COM 624756102 456,524 -1,848 -0.40 18,763 -5.49 0.0122
2021-08-10 2021-06-30 13F MUELLER INDS COM 624756102 458,372 25,182 5.81 19,852 10.83 0.0128
2021-05-10 2021-03-31 13F MUELLER INDS COM 624756102 433,190 8,222 1.93 17,912 20.05 0.0126
2021-02-23 2020-12-31 13F/A-1 MUELLER INDS COM 624756102 424,968 -708 -0.17 14,921 29.53 0.0111
2021-02-08 2020-12-31 13F MUELLER INDS COM 624756102 424,968 -708 14,921 5,870.1513
2020-11-06 2020-09-30 13F MUELLER INDS COM 624756102 425,676 -8,857 -2.04 11,519 -0.27 0.0097
2020-08-05 2020-06-30 13F MUELLER INDS COM 624756102 434,533 -25,395 -5.52 11,550 4.90 0.0102
2020-05-12 2020-03-31 13F MUELLER INDS COM 624756102 459,928 -16,998 -3.56 11,011 -27.28 0.0122
2020-02-05 2019-12-31 13F MUELLER INDS COM 624756102 476,926 6,659 1.42 15,142 12.27 0.0126
2019-11-13 2019-09-30 13F MUELLER INDS COM 624756102 470,267 -3,876 -0.82 13,487 -2.82 0.0119
2019-08-12 2019-06-30 13F MUELLER INDS COM 624756102 474,143 19,119 4.20 13,878 -2.68 0.0125
2019-05-10 2019-03-31 13F MUELLER INDS COM 624756102 455,024 -22,790 -4.77 14,260 27.75 0.0133
2019-02-14 2018-12-31 13F MUELLER INDS COM 624756102 477,814 4,556 0.96 11,162 -18.61 0.0119
2018-11-14 2018-09-30 13F MUELLER INDS COM 624756102 473,258 24,791 5.53 13,715 3.63 0.0121
2018-08-13 2018-06-30 13F MUELLER INDS COM 624756102 448,467 -59,646 -11.74 13,234 -0.44 0.0122
2018-05-14 2018-03-31 13F MUELLER INDS COM 624756102 508,113 -9,178 -1.77 13,292 -27.47 0.0128
2018-02-12 2017-12-31 13F MUELLER INDS COM 624756102 517,291 -12,178 -2.30 18,327 -0.96 0.0169
2017-11-02 2017-09-30 13F MUELLER INDS COM 624756102 529,469 -3,682 -0.69 18,505 13.99 0.0179
2017-08-08 2017-06-30 13F MUELLER INDS COM 624756102 533,151 23,528 4.62 16,234 -6.94 0.0163
2017-05-11 2017-03-31 13F MUELLER INDS COM 624756102 509,623 23,105 4.75 17,444 -10.27 0.0210
2017-02-13 2016-12-31 13F MUELLER INDS COM 624756102 486,518 56,408 13.11 19,441 39.42 0.0247
2016-11-10 2016-09-30 13F MUELLER INDS COM 624756102 430,110 14,511 3.49 13,944 5.25 0.0184
2016-08-09 2016-06-30 13F MUELLER INDS COM 624756102 415,599 11,956 2.96 13,249 11.57 0.0185
2016-05-10 2016-03-31 13F MUELLER INDS COM 624756102 403,643 13,286 3.40 11,875 12.26 0.0172
2016-02-09 2015-12-31 13F MUELLER INDS COM 624756102 390,357 18,098 4.86 10,578 -3.94 0.0157
2015-11-12 2015-09-30 13F/A-1 MUELLER INDS COM 624756102 372,259 15,446 4.33 11,012 -11.11 0.0173
2015-11-09 2015-09-30 13F MUELLER INDS COM 624756102 372,259 11,012
2015-08-10 2015-06-30 13F MUELLER INDS COM 624756102 356,813 -6,471 -1.78 12,388 -5.62 0.0185
2015-05-14 2015-03-31 13F/A-1 MUELLER INDS COM 624756102 363,284 8,383 2.36 13,125 8.32 0.0196
2015-05-12 2015-03-31 13F MUELLER INDS COM 624756102 363,284 13,126
2015-02-12 2014-12-31 13F MUELLER INDS COM 624756102 354,901 1,514 0.43 12,117 20.15 0.0188
2014-11-13 2014-09-30 13F MUELLER INDS COM 624756102 353,387 -3,894 -1.09 10,085 -4.03 0.0171
2014-08-12 2014-06-30 13F MUELLER INDS COM 624756102 357,281 -4,009 -1.11 10,508 -3.02 0.0177
2014-05-13 2014-03-31 13F MUELLER INDS COM 624756102 361,290 187,327 107.68 10,835 -1.15 0.0193
2014-02-12 2013-12-31 13F MUELLER INDS COM 624756102 173,963 -92,764 -34.78 10,961 -26.18 0.0205
2013-11-05 2013-09-30 13F MUELLER INDS COM 624756102 266,727 4,890 1.87 14,849 12.46 0.0307
2013-08-12 2013-06-30 13F MUELLER INDS COM 624756102 261,837 261,837 13,204 0.0292
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.