Mueller Industries, Inc.
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership13,360 shares
Latest Disclosed Value $ 1,480,288
Engineers Gate Manager LP reports 32.52% decrease in ownership of MLI / Mueller Industries, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 13,360 shares of Mueller Industries, Inc. (US:MLI) valued at $1,480,288 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,798 shares of Mueller Industries, Inc.. This represents a change in shares of -32.52% during the quarter. The current value of the position is $1,754,836 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 INDS COM 624756102 13,360 -6,438 -32.52 1,480 -34.86 0.0185
2026-02-17 2025-12-31 13F MUELLER INDS COM 624756102 19,798 -80,989 -80.36 2,273 -77.70 0.0270
2025-11-14 2025-09-30 13F MUELLER INDS COM 624756102 100,787 -18,057 -15.19 10,191 7.90 0.1167
2025-08-14 2025-06-30 13F MUELLER INDS COM 624756102 118,844 118,844 9,445 0.1175
2025-05-15 2025-03-31 13F MUELLER INDS COM 624756102 0 -17,790 -100.00 0 -100.00
2025-02-14 2024-12-31 13F MUELLER INDS COM 624756102 17,790 11,070 164.73 1,412 183.90 0.0246
2024-11-14 2024-09-30 13F MUELLER INDS COM 624756102 6,720 -8,700 -56.42 498 -43.39 0.0097
2024-08-14 2024-06-30 13F MUELLER INDS COM 624756102 15,420 -795 -4.90 878 0.46 0.0198
2024-05-15 2024-03-31 13F MUELLER INDS COM 624756102 16,215 16,215 874 0.0230
2023-11-14 2023-09-30 13F MUELLER INDS COM 624756102 0 -13,015 -100.00 0 -100.00
2023-08-14 2023-06-30 13F MUELLER INDS COM 624756102 13,015 8,939 219.31 1,136 279.60 0.0429
2023-05-15 2023-03-31 13F MUELLER INDS COM 624756102 4,076 -13,037 -76.18 300 -70.37 0.0125
2023-02-14 2022-12-31 13F MUELLER INDS COM 624756102 17,113 12,445 266.60 1,010 264.26 0.0606
2022-11-14 2022-09-30 13F MUELLER INDS COM 624756102 4,668 -3,942 -45.78 277 -39.65 0.0172
2022-08-15 2022-06-30 13F MUELLER INDS COM 624756102 8,610 -600 -6.51 459 -8.02 0.0168
2022-05-16 2022-03-31 13F MUELLER INDS COM 624756102 9,210 3,090 50.49 499 37.47 0.0195
2022-02-14 2021-12-31 13F MUELLER INDS COM 624756102 6,120 6,120 363 0.0163
2021-08-16 2021-06-30 13F MUELLER INDS COM 624756102 0 -7,170 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MUELLER INDS COM 624756102 7,170 7,170 296 0.0147
2021-02-16 2020-12-31 13F MUELLER INDS COM 624756102 0 -8,890 -100.00 0 -100.00
2020-11-16 2020-09-30 13F MUELLER INDS COM 624756102 8,890 -600 -6.32 241 -4.37 0.0113
2020-08-17 2020-06-30 13F MUELLER INDS COM 624756102 9,490 9,490 252 0.0128
2020-05-15 2020-03-31 13F MUELLER INDS COM 624756102 0 -7,300 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MUELLER INDS COM 624756102 7,300 -18,841 -72.07 232 -69.07 0.0102
2019-11-14 2019-09-30 13F MUELLER INDS COM 624756102 26,141 26,141 750 0.0381
2019-08-14 2019-06-30 13F MUELLER INDS COM 624756102 0 -16,215 -100.00 0 -100.00
2019-05-15 2019-03-31 13F MUELLER INDS COM 624756102 16,215 16,215 508 0.0308
2019-02-14 2018-12-31 13F MUELLER INDS COM 624756102 0 -8,806 -100.00 0 -100.00
2018-11-01 2018-09-30 13F MUELLER INDS COM 624756102 8,806 -15,258 -63.41 255 -64.08 0.0196
2018-08-03 2018-06-30 13F MUELLER INDS COM 624756102 24,064 24,064 710 0.0553
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.